X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvcl%2Fvppcom.c;h=60c649d325fb0eb05f7da9e4d6f7018c13a9f27d;hb=6a5adc369591fcac2447e9809deaa22f56b53911;hp=71d5af0446dda59494e9d8eb10028d81b8601bd9;hpb=498b3a56c9b61582b237614193920be610eaca58;p=vpp.git diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 71d5af0446d..60c649d325f 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -15,189 +15,11 @@ #include #include -#include #include -#include -#include -#include #include -#include -#include - -#define vl_typedefs /* define message structures */ -#include -#undef vl_typedefs - -/* declare message handlers for each api */ - -#define vl_endianfun /* define message structures */ -#include -#undef vl_endianfun - -/* instantiate all the print functions we know about */ -#define vl_print(handle, ...) -#define vl_printfun -#include -#undef vl_printfun - -#if (CLIB_DEBUG > 0) -/* Set VPPCOM_DEBUG_INIT 2 for connection debug, - * 3 for read/write debug output - * or - * export VCL_DEBUG=<#> to set dynamically. - */ -#define VPPCOM_DEBUG_INIT 1 -#else -#define VPPCOM_DEBUG_INIT 0 -#endif - -#define VPPCOM_DEBUG vcm->debug - -/* - * VPPCOM Private definitions and functions. - */ -typedef enum -{ - STATE_APP_START, - STATE_APP_CONN_VPP, - STATE_APP_ENABLED, - STATE_APP_ATTACHED, -} app_state_t; - -typedef enum -{ - STATE_START, - STATE_CONNECT, - STATE_LISTEN, - STATE_ACCEPT, - STATE_DISCONNECT, - STATE_FAILED -} session_state_t; - -typedef struct epoll_event vppcom_epoll_event_t; - -typedef struct -{ - u32 next_sid; - u32 prev_sid; - u32 vep_idx; - vppcom_epoll_event_t ev; -#define VEP_DEFAULT_ET_MASK (EPOLLIN|EPOLLOUT) - u32 et_mask; -} vppcom_epoll_t; - -typedef struct -{ - u8 is_ip4; - ip46_address_t ip46; -} vppcom_ip46_t; - -typedef struct -{ - volatile session_state_t state; - - svm_fifo_t *server_rx_fifo; - svm_fifo_t *server_tx_fifo; - u32 sm_seg_index; - u64 vpp_session_handle; - unix_shared_memory_queue_t *vpp_event_queue; - - /* Socket configuration state */ - /* TBD: covert 'is_*' vars to bit in u8 flags; */ - u8 is_server; - u8 is_listen; - u8 is_cut_thru; - u8 is_nonblocking; - u8 is_vep; - u8 is_vep_session; - u32 wait_cont_idx; - vppcom_epoll_t vep; - u32 vrf; - vppcom_ip46_t lcl_addr; - vppcom_ip46_t peer_addr; - u16 lcl_port; // network order - u16 peer_port; // network order - u8 proto; - u64 client_queue_address; - u64 options[16]; -} session_t; - -typedef struct vppcom_cfg_t_ -{ - u64 heapsize; - u64 segment_baseva; - u32 segment_size; - u32 add_segment_size; - u32 preallocated_fifo_pairs; - u32 rx_fifo_size; - u32 tx_fifo_size; - u32 event_queue_size; - u32 listen_queue_size; - u8 app_proxy_transport_tcp; - u8 app_proxy_transport_udp; - u8 app_scope_local; - u8 app_scope_global; - u8 *namespace_id; - u64 namespace_secret; - f64 app_timeout; - f64 session_timeout; - f64 accept_timeout; -} vppcom_cfg_t; - -typedef struct vppcom_main_t_ -{ - u8 init; - u32 debug; - u32 *client_session_index_fifo; - volatile u32 bind_session_index; - int main_cpu; - - /* vpe input queue */ - unix_shared_memory_queue_t *vl_input_queue; - - /* API client handle */ - u32 my_client_index; - - /* Session pool */ - clib_spinlock_t sessions_lockp; - session_t *sessions; - - /* Hash table for disconnect processing */ - uword *session_index_by_vpp_handles; - - /* Select bitmaps */ - clib_bitmap_t *rd_bitmap; - clib_bitmap_t *wr_bitmap; - clib_bitmap_t *ex_bitmap; - - /* Our event queue */ - unix_shared_memory_queue_t *app_event_queue; - - /* unique segment name counter */ - u32 unique_segment_index; - - /* For deadman timers */ - clib_time_t clib_time; - - /* State of the connection, shared between msg RX thread and main thread */ - volatile app_state_t app_state; - - vppcom_cfg_t cfg; - - /* VNET_API_ERROR_FOO -> "Foo" hash table */ - uword *error_string_by_error_number; -} vppcom_main_t; - -/* NOTE: _vppcom_main is only used until the heap is allocated. - * Do not access it directly -- use vcm which will point to - * the heap allocated copy after init. - */ -static vppcom_main_t _vppcom_main = { - .debug = VPPCOM_DEBUG_INIT, - .my_client_index = ~0 -}; - -static vppcom_main_t *vcm = &_vppcom_main; +#include +#include +#include static const char * vppcom_app_state_str (app_state_t state) @@ -230,7 +52,7 @@ vppcom_app_state_str (app_state_t state) return st; } -static const char * +const char * vppcom_session_state_str (session_state_t state) { char *st; @@ -253,6 +75,10 @@ vppcom_session_state_str (session_state_t state) st = "STATE_ACCEPT"; break; + case STATE_CLOSE_ON_EMPTY: + st = "STATE_CLOSE_ON_EMPTY"; + break; + case STATE_DISCONNECT: st = "STATE_DISCONNECT"; break; @@ -269,71 +95,98 @@ vppcom_session_state_str (session_state_t state) return st; } -/* - * VPPCOM Utility Functions - */ -static inline int -vppcom_session_at_index (u32 session_index, session_t * volatile *sess) +u8 * +format_ip4_address (u8 * s, va_list * args) { - /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */ - if (PREDICT_FALSE ((session_index == ~0) || - pool_is_free_index (vcm->sessions, session_index))) - { - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return VPPCOM_EBADFD; - } - *sess = pool_elt_at_index (vcm->sessions, session_index); - return VPPCOM_OK; + u8 *a = va_arg (*args, u8 *); + return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]); } -static int -vppcom_connect_to_vpp (char *app_name) +u8 * +format_ip6_address (u8 * s, va_list * args) { - api_main_t *am = &api_main; + ip6_address_t *a = va_arg (*args, ip6_address_t *); + u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon; - if (VPPCOM_DEBUG > 0) - printf ("\nConnecting to VPP api..."); - if (vl_client_connect_to_vlib ("/vpe-api", app_name, 32) < 0) + i_max_n_zero = ARRAY_LEN (a->as_u16); + max_n_zeros = 0; + i_first_zero = i_max_n_zero; + n_zeros = 0; + for (i = 0; i < ARRAY_LEN (a->as_u16); i++) { - clib_warning ("[%d] connect to vpp (%s) failed!", getpid (), app_name); - return VPPCOM_ECONNREFUSED; + u32 is_zero = a->as_u16[i] == 0; + if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16)) + { + i_first_zero = i; + n_zeros = 0; + } + n_zeros += is_zero; + if ((!is_zero && n_zeros > max_n_zeros) + || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros)) + { + i_max_n_zero = i_first_zero; + max_n_zeros = n_zeros; + i_first_zero = ARRAY_LEN (a->as_u16); + n_zeros = 0; + } } - vcm->vl_input_queue = am->shmem_hdr->vl_input_queue; - vcm->my_client_index = am->my_client_index; - if (VPPCOM_DEBUG > 0) - printf (" connected!\n"); + last_double_colon = 0; + for (i = 0; i < ARRAY_LEN (a->as_u16); i++) + { + if (i == i_max_n_zero && max_n_zeros > 1) + { + s = format (s, "::"); + i += max_n_zeros - 1; + last_double_colon = 1; + } + else + { + s = format (s, "%s%x", + (last_double_colon || i == 0) ? "" : ":", + clib_net_to_host_u16 (a->as_u16[i])); + last_double_colon = 0; + } + } - vcm->app_state = STATE_APP_CONN_VPP; - return VPPCOM_OK; + return s; } -static u8 * -format_api_error (u8 * s, va_list * args) +/* Format an IP46 address. */ +u8 * +format_ip46_address (u8 * s, va_list * args) { - i32 error = va_arg (*args, u32); - uword *p; + ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); + ip46_type_t type = va_arg (*args, ip46_type_t); + int is_ip4 = 1; - p = hash_get (vcm->error_string_by_error_number, -error); + switch (type) + { + case IP46_TYPE_ANY: + is_ip4 = ip46_address_is_ip4 (ip46); + break; + case IP46_TYPE_IP4: + is_ip4 = 1; + break; + case IP46_TYPE_IP6: + is_ip4 = 0; + break; + } - if (p) - s = format (s, "%s (%d)", p[0], error); - else - s = format (s, "%d", error); - return s; + return is_ip4 ? + format (s, "%U", format_ip4_address, &ip46->ip4) : + format (s, "%U", format_ip6_address, &ip46->ip6); } -static void -vppcom_init_error_string_table (void) -{ - vcm->error_string_by_error_number = hash_create (0, sizeof (uword)); - -#define _(n,v,s) hash_set (vcm->error_string_by_error_number, -v, s); - foreach_vnet_api_error; -#undef _ +/* + * VPPCOM Utility Functions + */ - hash_set (vcm->error_string_by_error_number, 99, "Misc"); +static inline void +vppcom_session_table_del_listener (u64 listener_handle) +{ + listener_handle |= 1ULL << 63; + hash_unset (vcm->session_index_by_vpp_handles, listener_handle); } static inline int @@ -346,9 +199,10 @@ vppcom_wait_for_app_state_change (app_state_t app_state) if (vcm->app_state == app_state) return VPPCOM_OK; } - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] timeout waiting for state %s (%d)", getpid (), - vppcom_app_state_str (app_state), app_state); + VDBG (0, "VCL<%d>: timeout waiting for state %s (%d)", getpid (), + vppcom_app_state_str (app_state), app_state); + vcl_evt (VCL_EVT_SESSION_TIMEOUT, vcm, app_state); + return VPPCOM_ETIMEDOUT; } @@ -358,70 +212,40 @@ vppcom_wait_for_session_state_change (u32 session_index, f64 wait_for_time) { f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time; - session_t *volatile session; + vcl_session_t *volatile session; int rv; do { - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK (); rv = vppcom_session_at_index (session_index, &session); if (PREDICT_FALSE (rv)) { - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); return rv; } - if (session->state == state) + if (session->session_state & state) { - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); return VPPCOM_OK; } - clib_spinlock_unlock (&vcm->sessions_lockp); - } - while (clib_time_now (&vcm->clib_time) < timeout); - - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] timeout waiting for state %s (%d)", getpid (), - vppcom_session_state_str (state), state); - return VPPCOM_ETIMEDOUT; -} - -static inline int -vppcom_wait_for_client_session_index (f64 wait_for_time) -{ - f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time; + if (session->session_state & STATE_FAILED) + { + VCL_SESSION_UNLOCK (); + return VPPCOM_ECONNREFUSED; + } - do - { - if (clib_fifo_elts (vcm->client_session_index_fifo)) - return VPPCOM_OK; + VCL_SESSION_UNLOCK (); } while (clib_time_now (&vcm->clib_time) < timeout); - if (wait_for_time == 0) - return VPPCOM_EAGAIN; + VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state, + vppcom_session_state_str (state)); + vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] timeout waiting for client_session_index", getpid ()); return VPPCOM_ETIMEDOUT; } -/* - * VPP-API message functions - */ -static void -vppcom_send_session_enable_disable (u8 is_enable) -{ - vl_api_session_enable_disable_t *bmp; - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - bmp->is_enable = is_enable; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - static int vppcom_app_session_enable (void) { @@ -433,63 +257,14 @@ vppcom_app_session_enable (void) rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] Session enable timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); + VDBG (0, "VCL<%d>: application session enable timed out! " + "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv)); return rv; } } return VPPCOM_OK; } -static void - vl_api_session_enable_disable_reply_t_handler - (vl_api_session_enable_disable_reply_t * mp) -{ - if (mp->retval) - { - clib_warning ("[%d] session_enable_disable failed: %U", getpid (), - format_api_error, ntohl (mp->retval)); - } - else - vcm->app_state = STATE_APP_ENABLED; -} - -static void -vppcom_app_send_attach (void) -{ - vl_api_application_attach_t *bmp; - u8 nsid_len = vec_len (vcm->cfg.namespace_id); - u8 app_is_proxy = (vcm->cfg.app_proxy_transport_tcp || - vcm->cfg.app_proxy_transport_udp); - - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - bmp->options[APP_OPTIONS_FLAGS] = - APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT | - (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) | - (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) | - (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0); - bmp->options[APP_OPTIONS_PROXY_TRANSPORT] = - (vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) | - (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0); - bmp->options[SESSION_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size; - bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size; - bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size; - bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size; - if (nsid_len) - { - bmp->namespace_id_len = nsid_len; - clib_memcpy (bmp->namespace_id, vcm->cfg.namespace_id, nsid_len); - bmp->options[APP_OPTIONS_NAMESPACE_SECRET] = vcm->cfg.namespace_secret; - } - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - static int vppcom_app_attach (void) { @@ -499,1461 +274,162 @@ vppcom_app_attach (void) rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] application attach timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); + VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)", + getpid (), rv, vppcom_retval_str (rv)); return rv; } - return VPPCOM_OK; -} -static void -vppcom_app_detach (void) -{ - vl_api_application_detach_t *bmp; - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); + return VPPCOM_OK; } -static void -vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t * - mp) +static int +vppcom_session_unbind (u32 session_index) { - static svm_fifo_segment_create_args_t _a; - svm_fifo_segment_create_args_t *a = &_a; + vcl_session_t *session = 0; int rv; + u64 vpp_handle; - memset (a, 0, sizeof (*a)); - if (mp->retval) - { - clib_warning ("[%d] attach failed: %U", getpid (), - format_api_error, ntohl (mp->retval)); - return; - } - - if (mp->segment_name_length == 0) - { - clib_warning ("[%d] segment_name_length zero", getpid ()); - return; - } - - a->segment_name = (char *) mp->segment_name; - a->segment_size = mp->segment_size; - - ASSERT (mp->app_event_queue_address); - - /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (a); - vec_reset_length (a->new_segment_indices); - if (PREDICT_FALSE (rv)) - { - clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", getpid (), - mp->segment_name); - return; - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); - vcm->app_event_queue = - uword_to_pointer (mp->app_event_queue_address, - unix_shared_memory_queue_t *); + vpp_handle = session->vpp_handle; + vppcom_session_table_del_listener (vpp_handle); + session->vpp_handle = ~0; + session->session_state = STATE_DISCONNECT; - vcm->app_state = STATE_APP_ATTACHED; -} + VCL_SESSION_UNLOCK (); -static void -vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t * - mp) -{ - if (mp->retval) - clib_warning ("[%d] detach failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state" + " 0x%x (%s)", getpid (), vpp_handle, session_index, STATE_DISCONNECT, + vppcom_session_state_str (STATE_DISCONNECT)); + vcl_evt (VCL_EVT_UNBIND, session); + vppcom_send_unbind_sock (vpp_handle); - vcm->app_state = STATE_APP_ENABLED; +done: + return rv; } -static void -vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t * - mp) +static int +vppcom_session_disconnect (u32 session_index) { - uword *p; + int rv; + vcl_session_t *session; + u64 vpp_handle; + session_state_t state; - p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (p) - { - session_t *session = 0; - int rv; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (p[0], &session); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), p[0]); - } - hash_unset (vcm->session_index_by_vpp_handles, mp->handle); - session->state = STATE_DISCONNECT; - clib_spinlock_unlock (&vcm->sessions_lockp); - } - else - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] couldn't find session key %llx", getpid (), - mp->handle); - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); - if (mp->retval) - clib_warning ("[%d] disconnect_session failed: %U", getpid (), - format_api_error, ntohl (mp->retval)); -} + vpp_handle = session->vpp_handle; + state = session->session_state; + VCL_SESSION_UNLOCK (); -static void -vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) -{ - static svm_fifo_segment_create_args_t _a; - svm_fifo_segment_create_args_t *a = &_a; - int rv; + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (), + vpp_handle, session_index, state, vppcom_session_state_str (state)); - memset (a, 0, sizeof (*a)); - a->segment_name = (char *) mp->segment_name; - a->segment_size = mp->segment_size; - /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (a); - vec_reset_length (a->new_segment_indices); - if (PREDICT_FALSE (rv)) + if (PREDICT_FALSE (state & STATE_LISTEN)) { - clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", - getpid (), mp->segment_name); - return; + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "Cannot disconnect a listen socket!", + getpid (), vpp_handle, session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] mapped new segment '%s' size %d", getpid (), - mp->segment_name, mp->segment_size); -} -static void -vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp) -{ - session_t *session = 0; - vl_api_disconnect_session_reply_t *rmp; - uword *p; - int rv = 0; - - p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (p) + /* The peer has already initiated the close, + * so send the disconnect session reply. + */ + if (state & STATE_CLOSE_ON_EMPTY) { - int rval; - clib_spinlock_lock (&vcm->sessions_lockp); - rval = vppcom_session_at_index (p[0], &session); - if (PREDICT_FALSE (rval)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), p[0]); - } - else - pool_put (vcm->sessions, session); - clib_spinlock_unlock (&vcm->sessions_lockp); - hash_unset (vcm->session_index_by_vpp_handles, mp->handle); + //XXX alagalah - Check and drain here? + vppcom_send_disconnect_session_reply (vpp_handle, + session_index, 0 /* rv */ ); + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect " + "REPLY...", getpid (), vpp_handle, session_index); } + + /* Otherwise, send a disconnect session msg... + */ else { - clib_warning ("[%d] couldn't find session key %llx", getpid (), - mp->handle); - rv = -11; - } + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...", + getpid (), vpp_handle, session_index); - rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); + vppcom_send_disconnect_session (vpp_handle, session_index); + } - rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY); - rmp->retval = htonl (rv); - rmp->handle = mp->handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); +done: + return rv; } -static void -vl_api_reset_session_t_handler (vl_api_reset_session_t * mp) +/* + * VPPCOM Public API functions + */ +int +vppcom_app_create (char *app_name) { - session_t *session = 0; - vl_api_reset_session_reply_t *rmp; - uword *p; - int rv = 0; + vppcom_cfg_t *vcl_cfg = &vcm->cfg; + int rv; - p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (p) - { - int rval; - clib_spinlock_lock (&vcm->sessions_lockp); - rval = vppcom_session_at_index (p[0], &session); - if (PREDICT_FALSE (rval)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), p[0]); - } - else - pool_put (vcm->sessions, session); - clib_spinlock_unlock (&vcm->sessions_lockp); - hash_unset (vcm->session_index_by_vpp_handles, mp->handle); - } - else + if (!vcm->init) { - clib_warning ("[%d] couldn't find session key %llx", getpid (), - mp->handle); - rv = -11; - } + vcm->init = 1; + vppcom_cfg (&vcm->cfg); - rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); - rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY); - rmp->retval = htonl (rv); - rmp->handle = mp->handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); -} + clib_spinlock_init (&vcm->session_fifo_lockp); + clib_fifo_validate (vcm->client_session_index_fifo, + vcm->cfg.listen_queue_size); + clib_spinlock_init (&vcm->sessions_lockp); -static void -vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp) -{ - session_t *session; - u32 session_index; - svm_fifo_t *rx_fifo, *tx_fifo; - u8 is_cut_thru = 0; - int rv; - if (mp->retval) - { - clib_warning ("[%d] connect failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); - return; - } + vcm->main_cpu = os_get_thread_index (); - session_index = mp->context; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] session_index = %d 0x%08x", getpid (), - session_index, session_index); + vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword)); - clib_spinlock_lock (&vcm->sessions_lockp); - if (pool_is_free_index (vcm->sessions, session_index)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid %d is closed!", - getpid (), session_index); - return; + clib_time_init (&vcm->clib_time); + vppcom_init_error_string_table (); + svm_fifo_segment_main_init (vcl_cfg->segment_baseva, + 20 /* timeout in secs */ ); } - /* We've been redirected */ - if (mp->segment_name_length > 0) + if (vcm->my_client_index == ~0) { - static svm_fifo_segment_create_args_t _a; - svm_fifo_segment_create_args_t *a = &_a; - - is_cut_thru = 1; - memset (a, 0, sizeof (*a)); - a->segment_name = (char *) mp->segment_name; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] cut-thru segment: %s", getpid (), - a->segment_name); - rv = svm_fifo_segment_attach (a); - vec_reset_length (a->new_segment_indices); - if (PREDICT_FALSE (rv)) + /* API hookup and connect to VPP */ + vppcom_api_hookup (); + vcl_elog_init (vcm); + vcm->app_state = STATE_APP_START; + rv = vppcom_connect_to_vpp (app_name); + if (rv) { - clib_spinlock_unlock (&vcm->sessions_lockp); - clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed", - getpid (), a->segment_name); - return; + clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!", + getpid ()); + return rv; } - } - /* - * Setup session - */ - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] client sid %d", getpid (), session_index); - - session = pool_elt_at_index (vcm->sessions, session_index); - session->is_cut_thru = is_cut_thru; - session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address, - unix_shared_memory_queue_t *); - - rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); - rx_fifo->client_session_index = session_index; - tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); - tx_fifo->client_session_index = session_index; - - session->server_rx_fifo = rx_fifo; - session->server_tx_fifo = tx_fifo; - session->vpp_session_handle = mp->handle; - session->state = STATE_CONNECT; - - /* Add it to lookup table */ - hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); -} + /* State event handling thread */ -static void -vppcom_send_connect_sock (session_t * session, u32 session_index) -{ - vl_api_connect_sock_t *cmp; - - /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */ - session->is_server = 0; - cmp = vl_msg_api_alloc (sizeof (*cmp)); - memset (cmp, 0, sizeof (*cmp)); - cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK); - cmp->client_index = vcm->my_client_index; - cmp->context = session_index; - - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] session_index = %d 0x%08x", - getpid (), session_index, session_index); - - cmp->vrf = session->vrf; - cmp->is_ip4 = session->peer_addr.is_ip4; - clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip)); - cmp->port = session->peer_port; - cmp->proto = session->proto; - clib_memcpy (cmp->options, session->options, sizeof (cmp->options)); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp); -} - -static inline void -vppcom_send_disconnect (session_t * session) -{ - vl_api_disconnect_session_t *dmp; - - /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */ - dmp = vl_msg_api_alloc (sizeof (*dmp)); - memset (dmp, 0, sizeof (*dmp)); - dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION); - dmp->client_index = vcm->my_client_index; - dmp->handle = session->vpp_session_handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp); -} - -static void -vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp) -{ - session_t *session = 0; - int rv; - - if (mp->retval) - clib_warning ("[%d] bind failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); - - ASSERT (vcm->bind_session_index != ~0); - - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (vcm->bind_session_index, &session); - if (rv == VPPCOM_OK) - { - session->vpp_session_handle = mp->handle; - hash_set (vcm->session_index_by_vpp_handles, mp->handle, - vcm->bind_session_index); - session->state = mp->retval ? STATE_FAILED : STATE_LISTEN; - vcm->bind_session_index = ~0; - } - clib_spinlock_unlock (&vcm->sessions_lockp); -} - -static void -vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp) -{ - session_t *session = 0; - int rv; - - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (vcm->bind_session_index, &session); - if (rv == VPPCOM_OK) - { - if ((VPPCOM_DEBUG > 1) && (mp->retval)) - clib_warning ("[%d] unbind failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); - - vcm->bind_session_index = ~0; - session->state = STATE_START; - } - clib_spinlock_unlock (&vcm->sessions_lockp); -} - -u8 * -format_ip4_address (u8 * s, va_list * args) -{ - u8 *a = va_arg (*args, u8 *); - return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]); -} - -u8 * -format_ip6_address (u8 * s, va_list * args) -{ - ip6_address_t *a = va_arg (*args, ip6_address_t *); - u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon; - - i_max_n_zero = ARRAY_LEN (a->as_u16); - max_n_zeros = 0; - i_first_zero = i_max_n_zero; - n_zeros = 0; - for (i = 0; i < ARRAY_LEN (a->as_u16); i++) - { - u32 is_zero = a->as_u16[i] == 0; - if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16)) - { - i_first_zero = i; - n_zeros = 0; - } - n_zeros += is_zero; - if ((!is_zero && n_zeros > max_n_zeros) - || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros)) - { - i_max_n_zero = i_first_zero; - max_n_zeros = n_zeros; - i_first_zero = ARRAY_LEN (a->as_u16); - n_zeros = 0; - } - } - - last_double_colon = 0; - for (i = 0; i < ARRAY_LEN (a->as_u16); i++) - { - if (i == i_max_n_zero && max_n_zeros > 1) - { - s = format (s, "::"); - i += max_n_zeros - 1; - last_double_colon = 1; - } - else - { - s = format (s, "%s%x", - (last_double_colon || i == 0) ? "" : ":", - clib_net_to_host_u16 (a->as_u16[i])); - last_double_colon = 0; - } - } - - return s; -} - -/* Format an IP46 address. */ -u8 * -format_ip46_address (u8 * s, va_list * args) -{ - ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); - ip46_type_t type = va_arg (*args, ip46_type_t); - int is_ip4 = 1; - - switch (type) - { - case IP46_TYPE_ANY: - is_ip4 = ip46_address_is_ip4 (ip46); - break; - case IP46_TYPE_IP4: - is_ip4 = 1; - break; - case IP46_TYPE_IP6: - is_ip4 = 0; - break; - } - - return is_ip4 ? - format (s, "%U", format_ip4_address, &ip46->ip4) : - format (s, "%U", format_ip6_address, &ip46->ip6); -} - -static void -vl_api_accept_session_t_handler (vl_api_accept_session_t * mp) -{ - vl_api_accept_session_reply_t *rmp; - svm_fifo_t *rx_fifo, *tx_fifo; - session_t *session; - u32 session_index; - int rv = 0; - - if (!clib_fifo_free_elts (vcm->client_session_index_fifo)) - { - clib_warning ("[%d] client session queue is full!", getpid ()); - rv = VNET_API_ERROR_QUEUE_FULL; - goto send_reply; - } - - if (VPPCOM_DEBUG > 1) - { - u8 *ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4); - clib_warning ("[%d] accepted session from: %s:%d", getpid (), ip_str, - clib_net_to_host_u16 (mp->port)); - vec_free (ip_str); - } - - clib_spinlock_lock (&vcm->sessions_lockp); - /* Allocate local session and set it up */ - pool_get (vcm->sessions, session); - memset (session, 0, sizeof (*session)); - session_index = session - vcm->sessions; + rv = vce_start_event_thread (&(vcm->event_thread), 20); - rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); - rx_fifo->client_session_index = session_index; - tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); - tx_fifo->client_session_index = session_index; - - session->server_rx_fifo = rx_fifo; - session->server_tx_fifo = tx_fifo; - session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address, - unix_shared_memory_queue_t *); - session->state = STATE_ACCEPT; - session->is_cut_thru = 0; - session->is_server = 1; - session->peer_port = mp->port; - session->peer_addr.is_ip4 = mp->is_ip4; - clib_memcpy (&session->peer_addr.ip46, mp->ip, - sizeof (session->peer_addr.ip46)); - - /* Add it to lookup table */ - hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); - - clib_fifo_add1 (vcm->client_session_index_fifo, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); - - /* - * Send accept reply to vpp - */ -send_reply: - rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); - rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY); - rmp->retval = htonl (rv); - rmp->handle = mp->handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); -} - -/* - * Acting as server for redirected connect requests - */ -static void -vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp) -{ - static svm_fifo_segment_create_args_t _a; - svm_fifo_segment_create_args_t *a = &_a; - u32 session_index; - svm_fifo_segment_private_t *seg; - unix_shared_memory_queue_t *client_q; - vl_api_connect_session_reply_t *rmp; - session_t *session = 0; - int rv = 0; - svm_fifo_t *rx_fifo; - svm_fifo_t *tx_fifo; - unix_shared_memory_queue_t *event_q = 0; - - clib_spinlock_lock (&vcm->sessions_lockp); - if (!clib_fifo_free_elts (vcm->client_session_index_fifo)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] client session queue is full!", getpid ()); - rv = VNET_API_ERROR_QUEUE_FULL; - clib_spinlock_unlock (&vcm->sessions_lockp); - goto send_reply; - } - - /* Create the segment */ - memset (a, 0, sizeof (*a)); - a->segment_name = (char *) format ((u8 *) a->segment_name, "%d:segment%d%c", - getpid (), vcm->unique_segment_index++, - 0); - a->segment_size = vcm->cfg.segment_size; - a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs; - a->rx_fifo_size = vcm->cfg.rx_fifo_size; - a->tx_fifo_size = vcm->cfg.tx_fifo_size; - - rv = svm_fifo_segment_create (a); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] svm_fifo_segment_create ('%s') failed", - getpid (), a->segment_name); - vec_reset_length (a->new_segment_indices); - rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED; - goto send_reply; - } - - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] created segment '%s'", getpid (), a->segment_name); - - pool_get (vcm->sessions, session); - memset (session, 0, sizeof (*session)); - session_index = session - vcm->sessions; - - session->sm_seg_index = a->new_segment_indices[0]; - vec_reset_length (a->new_segment_indices); - - seg = svm_fifo_segment_get_segment (session->sm_seg_index); - rx_fifo = session->server_rx_fifo = - svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size, - FIFO_SEGMENT_RX_FREELIST); - if (PREDICT_FALSE (!session->server_rx_fifo)) - { - svm_fifo_segment_delete (seg); - clib_warning ("[%d] rx fifo alloc failed, size %ld (0x%lx)", - getpid (), vcm->cfg.rx_fifo_size, vcm->cfg.rx_fifo_size); - rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED; - clib_spinlock_unlock (&vcm->sessions_lockp); - goto send_reply; - } - - tx_fifo = session->server_tx_fifo = - svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size, - FIFO_SEGMENT_TX_FREELIST); - if (PREDICT_FALSE (!session->server_tx_fifo)) - { - svm_fifo_segment_delete (seg); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] tx fifo alloc failed, size %ld (0x%lx)", - getpid (), vcm->cfg.tx_fifo_size, - vcm->cfg.tx_fifo_size); - rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED; - clib_spinlock_unlock (&vcm->sessions_lockp); - goto send_reply; - } - - session->server_rx_fifo->master_session_index = session_index; - session->server_tx_fifo->master_session_index = session_index; - session->client_queue_address = mp->client_queue_address; - session->is_cut_thru = 1; - session->is_server = 1; - session->peer_port = mp->port; - session->peer_addr.is_ip4 = mp->is_ip4; - clib_memcpy (&session->peer_addr.ip46, mp->ip, - sizeof (session->peer_addr.ip46)); - { - void *oldheap; - ssvm_shared_header_t *sh = seg->ssvm.sh; - - ssvm_lock_non_recursive (sh, 1); - oldheap = ssvm_push_heap (sh); - event_q = session->vpp_event_queue = - unix_shared_memory_queue_init (vcm->cfg.event_queue_size, - sizeof (session_fifo_event_t), - getpid (), 0 /* signal not sent */ ); - ssvm_pop_heap (oldheap); - ssvm_unlock_non_recursive (sh); - } - - session->state = STATE_ACCEPT; - clib_fifo_add1 (vcm->client_session_index_fifo, session_index); - if (VPPCOM_DEBUG > 1) - clib_warning - ("[%d] Connected cut-thru to client: sid %d, clib_fifo_elts %u!", - getpid (), session_index, - clib_fifo_elts (vcm->client_session_index_fifo)); - clib_spinlock_unlock (&vcm->sessions_lockp); - -send_reply: - rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); - - rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY); - rmp->context = mp->context; - rmp->retval = htonl (rv); - rmp->segment_name_length = vec_len (a->segment_name); - clib_memcpy (rmp->segment_name, a->segment_name, vec_len (a->segment_name)); - vec_reset_length (a->segment_name); - - if (event_q) - { - rmp->vpp_event_queue_address = pointer_to_uword (event_q); - rmp->server_rx_fifo = pointer_to_uword (rx_fifo); - rmp->server_tx_fifo = pointer_to_uword (tx_fifo); - } - client_q = - uword_to_pointer (mp->client_queue_address, unix_shared_memory_queue_t *); - - ASSERT (client_q); - vl_msg_api_send_shmem (client_q, (u8 *) & rmp); -} - -static void -vppcom_send_bind_sock (session_t * session) -{ - vl_api_bind_sock_t *bmp; - - /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - session->is_server = 1; - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - bmp->vrf = session->vrf; - bmp->is_ip4 = session->lcl_addr.is_ip4; - clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip)); - bmp->port = session->lcl_port; - bmp->proto = session->proto; - clib_memcpy (bmp->options, session->options, sizeof (bmp->options)); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - -static void -vppcom_send_unbind_sock (u32 session_index) -{ - vl_api_unbind_sock_t *ump; - session_t *session = 0; - int rv; - - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return; - } - - ump = vl_msg_api_alloc (sizeof (*ump)); - memset (ump, 0, sizeof (*ump)); - - ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK); - ump->client_index = vcm->my_client_index; - ump->handle = session->vpp_session_handle; - clib_spinlock_unlock (&vcm->sessions_lockp); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump); -} - -static int -vppcom_session_unbind_cut_thru (session_t * session) -{ - svm_fifo_segment_main_t *sm = &svm_fifo_segment_main; - svm_fifo_segment_private_t *seg; - int rv = VPPCOM_OK; - - seg = vec_elt_at_index (sm->segments, session->sm_seg_index); - svm_fifo_segment_free_fifo (seg, session->server_rx_fifo, - FIFO_SEGMENT_RX_FREELIST); - svm_fifo_segment_free_fifo (seg, session->server_tx_fifo, - FIFO_SEGMENT_TX_FREELIST); - svm_fifo_segment_delete (seg); - - return rv; -} - -static int -vppcom_session_unbind (u32 session_index) -{ - int rv; - - clib_spinlock_lock (&vcm->sessions_lockp); - if (PREDICT_FALSE (pool_is_free_index (vcm->sessions, session_index))) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return VPPCOM_EBADFD; - } - clib_spinlock_unlock (&vcm->sessions_lockp); - - vcm->bind_session_index = session_index; - vppcom_send_unbind_sock (session_index); - rv = vppcom_wait_for_session_state_change (session_index, STATE_START, - vcm->cfg.session_timeout); - if (PREDICT_FALSE (rv)) - { - vcm->bind_session_index = ~0; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] server unbind timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); - return rv; - } - return VPPCOM_OK; -} - -static inline int -vppcom_session_disconnect (u32 session_index) -{ - int rv; - session_t *session; - - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } - - if (!session->is_cut_thru) - { - vppcom_send_disconnect (session); - clib_spinlock_unlock (&vcm->sessions_lockp); - - rv = vppcom_wait_for_session_state_change (session_index, - STATE_DISCONNECT, 1.0); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] disconnect (session %d) failed, rv = %s (%d)", - getpid (), session_index, vppcom_retval_str (rv), rv); - } - else - clib_spinlock_unlock (&vcm->sessions_lockp); - - return VPPCOM_OK; -} - -#define foreach_sock_msg \ -_(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \ -_(BIND_SOCK_REPLY, bind_sock_reply) \ -_(UNBIND_SOCK_REPLY, unbind_sock_reply) \ -_(ACCEPT_SESSION, accept_session) \ -_(CONNECT_SOCK, connect_sock) \ -_(CONNECT_SESSION_REPLY, connect_session_reply) \ -_(DISCONNECT_SESSION, disconnect_session) \ -_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \ -_(RESET_SESSION, reset_session) \ -_(APPLICATION_ATTACH_REPLY, application_attach_reply) \ -_(APPLICATION_DETACH_REPLY, application_detach_reply) \ -_(MAP_ANOTHER_SEGMENT, map_another_segment) - -static void -vppcom_api_hookup (void) -{ -#define _(N,n) \ - vl_msg_api_set_handlers(VL_API_##N, #n, \ - vl_api_##n##_t_handler, \ - vl_noop_handler, \ - vl_api_##n##_t_endian, \ - vl_api_##n##_t_print, \ - sizeof(vl_api_##n##_t), 1); - foreach_sock_msg; -#undef _ -} - -static void -vppcom_cfg_init (vppcom_cfg_t * vcl_cfg) -{ - ASSERT (vcl_cfg); - - vcl_cfg->heapsize = (256ULL << 20); - vcl_cfg->segment_baseva = 0x200000000ULL; - vcl_cfg->segment_size = (256 << 20); - vcl_cfg->add_segment_size = (128 << 20); - vcl_cfg->preallocated_fifo_pairs = 8; - vcl_cfg->rx_fifo_size = (1 << 20); - vcl_cfg->tx_fifo_size = (1 << 20); - vcl_cfg->event_queue_size = 2048; - vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32); - vcl_cfg->app_timeout = 10 * 60.0; - vcl_cfg->session_timeout = 10 * 60.0; - vcl_cfg->accept_timeout = 60.0; -} - -static void -vppcom_cfg_heapsize (char *conf_fname) -{ - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - FILE *fp; - char inbuf[4096]; - int argc = 1; - char **argv = NULL; - char *arg = NULL; - char *p; - int i; - u8 *sizep; - u32 size; - void *vcl_mem; - void *heap; - - fp = fopen (conf_fname, "r"); - if (fp == NULL) - { - if (VPPCOM_DEBUG > 0) - fprintf (stderr, "open configuration file '%s' failed\n", conf_fname); - goto defaulted; - } - argv = calloc (1, sizeof (char *)); - if (argv == NULL) - goto defaulted; - - while (1) - { - if (fgets (inbuf, 4096, fp) == 0) - break; - p = strtok (inbuf, " \t\n"); - while (p != NULL) - { - if (*p == '#') - break; - argc++; - char **tmp = realloc (argv, argc * sizeof (char *)); - if (tmp == NULL) - goto defaulted; - argv = tmp; - arg = strndup (p, 1024); - if (arg == NULL) - goto defaulted; - argv[argc - 1] = arg; - p = strtok (NULL, " \t\n"); - } - } - - fclose (fp); - fp = NULL; - - char **tmp = realloc (argv, (argc + 1) * sizeof (char *)); - if (tmp == NULL) - goto defaulted; - argv = tmp; - argv[argc] = NULL; - - /* - * Look for and parse the "heapsize" config parameter. - * Manual since none of the clib infra has been bootstrapped yet. - * - * Format: heapsize [mM][gG] - */ - - for (i = 1; i < (argc - 1); i++) - { - if (!strncmp (argv[i], "heapsize", 8)) - { - sizep = (u8 *) argv[i + 1]; - size = 0; - while (*sizep >= '0' && *sizep <= '9') - { - size *= 10; - size += *sizep++ - '0'; - } - if (size == 0) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] parse error '%s %s', " - "using default heapsize %lld (0x%llx)", - getpid (), argv[i], argv[i + 1], - vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - - if (*sizep == 'g' || *sizep == 'G') - vcl_cfg->heapsize = size << 30; - else if (*sizep == 'm' || *sizep == 'M') - vcl_cfg->heapsize = size << 20; - else - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] parse error '%s %s', " - "using default heapsize %lld (0x%llx)", - getpid (), argv[i], argv[i + 1], - vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - } - } - -defaulted: - if (fp != NULL) - fclose (fp); - if (argv != NULL) - free (argv); - - vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE, - MAP_SHARED | MAP_ANONYMOUS, -1, 0); - if (vcl_mem <= 0) - { - clib_unix_error ("[%d] ERROR: mmap(0, %lld == 0x%llx, " - "PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, " - "-1, 0) failed!", - getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); - return; - } - heap = clib_mem_init (vcl_mem, vcl_cfg->heapsize); - if (!heap) - { - clib_warning ("[%d] ERROR: clib_mem_init() failed!", getpid ()); - return; - } - vcl_mem = clib_mem_alloc (sizeof (_vppcom_main)); - if (!vcl_mem) - { - clib_warning ("[%d] ERROR: clib_mem_alloc() failed!", getpid ()); - return; - } - - clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main)); - vcm = vcl_mem; - - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] allocated VCL heap = %p, size %lld (0x%llx)", - getpid (), heap, vcl_cfg->heapsize, vcl_cfg->heapsize); -} - -static void -vppcom_cfg_read (char *conf_fname) -{ - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - int fd; - unformat_input_t _input, *input = &_input; - unformat_input_t _line_input, *line_input = &_line_input; - u8 vc_cfg_input = 0; - u8 *chroot_path; - struct stat s; - u32 uid, gid; - - fd = open (conf_fname, O_RDONLY); - if (fd < 0) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] open configuration file '%s' failed!", - getpid (), conf_fname); - goto file_done; - } - - if (fstat (fd, &s) < 0) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] failed to stat `%s'", getpid (), conf_fname); - goto file_done; - } - - if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode))) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] not a regular file `%s'", getpid (), conf_fname); - goto file_done; - } - - unformat_init_clib_file (input, fd); - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - (void) unformat_user (input, unformat_line_input, line_input); - unformat_skip_white_space (line_input); - - if (unformat (line_input, "vcl {")) - { - vc_cfg_input = 1; - continue; - } - - if (vc_cfg_input) - { - if (unformat (line_input, "heapsize %s", &chroot_path)) - { - vec_terminate_c_string (chroot_path); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured heapsize %s, " - "actual heapsize %lld (0x%llx)", - getpid (), chroot_path, vcl_cfg->heapsize, - vcl_cfg->heapsize); - vec_free (chroot_path); - } - else if (unformat (line_input, "api-prefix %s", &chroot_path)) - { - vec_terminate_c_string (chroot_path); - vl_set_memory_root_path ((char *) chroot_path); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured api-prefix %s", - getpid (), chroot_path); - chroot_path = 0; /* Don't vec_free() it! */ - } - else if (unformat (line_input, "uid %d", &uid)) - { - vl_set_memory_uid (uid); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured uid %d", getpid (), uid); - } - else if (unformat (line_input, "gid %d", &gid)) - { - vl_set_memory_gid (gid); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured gid %d", getpid (), gid); - } - else if (unformat (line_input, "segment-baseva 0x%lx", - &vcl_cfg->segment_baseva)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured segment_baseva 0x%lx", - getpid (), vcl_cfg->segment_baseva); - } - else if (unformat (line_input, "segment-size 0x%lx", - &vcl_cfg->segment_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured segment_size 0x%lx (%ld)", - getpid (), vcl_cfg->segment_size, - vcl_cfg->segment_size); - } - else if (unformat (line_input, "segment-size %ld", - &vcl_cfg->segment_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured segment_size %ld (0x%lx)", - getpid (), vcl_cfg->segment_size, - vcl_cfg->segment_size); - } - else if (unformat (line_input, "add-segment-size 0x%lx", - &vcl_cfg->add_segment_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning - ("[%d] configured add_segment_size 0x%lx (%ld)", - getpid (), vcl_cfg->add_segment_size, - vcl_cfg->add_segment_size); - } - else if (unformat (line_input, "add-segment-size %ld", - &vcl_cfg->add_segment_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning - ("[%d] configured add_segment_size %ld (0x%lx)", - getpid (), vcl_cfg->add_segment_size, - vcl_cfg->add_segment_size); - } - else if (unformat (line_input, "preallocated-fifo-pairs %d", - &vcl_cfg->preallocated_fifo_pairs)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured preallocated_fifo_pairs " - "%d (0x%x)", getpid (), - vcl_cfg->preallocated_fifo_pairs, - vcl_cfg->preallocated_fifo_pairs); - } - else if (unformat (line_input, "rx-fifo-size 0x%lx", - &vcl_cfg->rx_fifo_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)", - getpid (), vcl_cfg->rx_fifo_size, - vcl_cfg->rx_fifo_size); - } - else if (unformat (line_input, "rx-fifo-size %ld", - &vcl_cfg->rx_fifo_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)", - getpid (), vcl_cfg->rx_fifo_size, - vcl_cfg->rx_fifo_size); - } - else if (unformat (line_input, "tx-fifo-size 0x%lx", - &vcl_cfg->tx_fifo_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)", - getpid (), vcl_cfg->tx_fifo_size, - vcl_cfg->tx_fifo_size); - } - else if (unformat (line_input, "tx-fifo-size %ld", - &vcl_cfg->tx_fifo_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)", - getpid (), vcl_cfg->tx_fifo_size, - vcl_cfg->tx_fifo_size); - } - else if (unformat (line_input, "event-queue-size 0x%lx", - &vcl_cfg->event_queue_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)", - getpid (), vcl_cfg->event_queue_size, - vcl_cfg->event_queue_size); - } - else if (unformat (line_input, "event-queue-size %ld", - &vcl_cfg->event_queue_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured event_queue_size %ld (0x%lx)", - getpid (), vcl_cfg->event_queue_size, - vcl_cfg->event_queue_size); - } - else if (unformat (line_input, "listen-queue-size 0x%lx", - &vcl_cfg->listen_queue_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)", - getpid (), vcl_cfg->listen_queue_size, - vcl_cfg->listen_queue_size); - } - else if (unformat (line_input, "listen-queue-size %ld", - &vcl_cfg->listen_queue_size)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)", - getpid (), vcl_cfg->listen_queue_size, - vcl_cfg->listen_queue_size); - } - else if (unformat (line_input, "app-timeout %f", - &vcl_cfg->app_timeout)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_timeout %f", - getpid (), vcl_cfg->app_timeout); - } - else if (unformat (line_input, "session-timeout %f", - &vcl_cfg->session_timeout)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured session_timeout %f", - getpid (), vcl_cfg->session_timeout); - } - else if (unformat (line_input, "accept-timeout %f", - &vcl_cfg->accept_timeout)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured accept_timeout %f", - getpid (), vcl_cfg->accept_timeout); - } - else if (unformat (line_input, "app-proxy-transport-tcp")) - { - vcl_cfg->app_proxy_transport_tcp = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_proxy_transport_tcp (%d)", - getpid (), vcl_cfg->app_proxy_transport_tcp); - } - else if (unformat (line_input, "app-proxy-transport-udp")) - { - vcl_cfg->app_proxy_transport_udp = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_proxy_transport_udp (%d)", - getpid (), vcl_cfg->app_proxy_transport_udp); - } - else if (unformat (line_input, "app-scope-local")) - { - vcl_cfg->app_scope_local = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_scope_local (%d)", - getpid (), vcl_cfg->app_scope_local); - } - else if (unformat (line_input, "app-scope-global")) - { - vcl_cfg->app_scope_global = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_scope_global (%d)", - getpid (), vcl_cfg->app_scope_global); - } - else if (unformat (line_input, "namespace-secret %lu", - &vcl_cfg->namespace_secret)) - { - if (VPPCOM_DEBUG > 0) - clib_warning - ("[%d] configured namespace_secret %lu (0x%lx)", - getpid (), vcl_cfg->namespace_secret, - vcl_cfg->namespace_secret); - } - else if (unformat (line_input, "namespace-id %v", - &vcl_cfg->namespace_id)) - { - vl_api_application_attach_t *mp; - u32 max_nsid_vec_len = sizeof (mp->namespace_id) - 1; - u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id); - if (nsid_vec_len > max_nsid_vec_len) - { - _vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured namespace_id is too long," - " truncated to %d characters!", getpid (), - max_nsid_vec_len); - } - - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured namespace_id %v", - getpid (), vcl_cfg->namespace_id); - } - else if (unformat (line_input, "}")) - { - vc_cfg_input = 0; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] completed parsing vppcom config!", - getpid ()); - goto input_done; - } - else - { - if (line_input->buffer[line_input->index] != '#') - { - clib_warning ("[%d] Unknown vppcom config option: '%s'", - getpid (), (char *) - &line_input->buffer[line_input->index]); - } - } - } - } - -input_done: - unformat_free (input); - -file_done: - if (fd >= 0) - close (fd); -} - -/* - * VPPCOM Public API functions - */ -int -vppcom_app_create (char *app_name) -{ - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - u8 *heap; - mheap_t *h; - int rv; - - if (!vcm->init) - { - char *conf_fname; - char *env_var_str; - - vcm->init = 1; - vppcom_cfg_init (vcl_cfg); - env_var_str = getenv (VPPCOM_ENV_DEBUG); - if (env_var_str) - { - u32 tmp; - if (sscanf (env_var_str, "%u", &tmp) != 1) - clib_warning ("[%d] Invalid debug level specified in " - "the environment variable " - VPPCOM_ENV_DEBUG - " (%s)!\n", getpid (), env_var_str); - else - { - vcm->debug = tmp; - clib_warning ("[%d] configured debug level (%u) from " - VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug); - } - } - conf_fname = getenv (VPPCOM_ENV_CONF); - if (!conf_fname) - { - conf_fname = VPPCOM_CONF_DEFAULT; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] getenv '%s' failed!", getpid (), - VPPCOM_ENV_CONF); - } - vppcom_cfg_heapsize (conf_fname); - clib_fifo_validate (vcm->client_session_index_fifo, - vcm->cfg.listen_queue_size); - vppcom_cfg_read (conf_fname); - env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID); - if (env_var_str) - { - u32 ns_id_vec_len = strlen (env_var_str); - - vec_reset_length (vcm->cfg.namespace_id); - vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1); - clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len); - - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured namespace_id (%v) from " - VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), - vcm->cfg.namespace_id); - } - env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET); - if (env_var_str) - { - u64 tmp; - if (sscanf (env_var_str, "%lu", &tmp) != 1) - clib_warning ("[%d] Invalid namespace secret specified in " - "the environment variable " - VPPCOM_ENV_APP_NAMESPACE_SECRET - " (%s)!\n", getpid (), env_var_str); - else - { - vcm->cfg.namespace_secret = tmp; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured namespace secret (%lu) from " - VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), - vcm->cfg.namespace_secret); - } - } - if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP)) - { - vcm->cfg.app_proxy_transport_tcp = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_proxy_transport_tcp (%u) from " - VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (), - vcm->cfg.app_proxy_transport_tcp); - } - if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP)) - { - vcm->cfg.app_proxy_transport_udp = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_proxy_transport_udp (%u) from " - VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (), - vcm->cfg.app_proxy_transport_udp); - } - if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL)) - { - vcm->cfg.app_scope_local = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_scope_local (%u) from " - VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (), - vcm->cfg.app_scope_local); - } - if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL)) - { - vcm->cfg.app_scope_global = 1; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] configured app_scope_global (%u) from " - VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (), - vcm->cfg.app_scope_global); - } - - vcm->bind_session_index = ~0; - vcm->main_cpu = os_get_thread_index (); - heap = clib_mem_get_per_cpu_heap (); - h = mheap_header (heap); - - /* make the main heap thread-safe */ - h->flags |= MHEAP_FLAG_THREAD_SAFE; - - vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword)); - - clib_time_init (&vcm->clib_time); - vppcom_init_error_string_table (); - svm_fifo_segment_init (vcl_cfg->segment_baseva, - 20 /* timeout in secs */ ); - clib_spinlock_init (&vcm->sessions_lockp); - vppcom_api_hookup (); - } - - if (vcm->my_client_index == ~0) - { - vcm->app_state = STATE_APP_START; - rv = vppcom_connect_to_vpp (app_name); - if (rv) - { - clib_warning ("[%d] couldn't connect to VPP.", getpid ()); - return rv; - } - - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sending session enable", getpid ()); + VDBG (0, "VCL<%d>: sending session enable", getpid ()); rv = vppcom_app_session_enable (); if (rv) { - clib_warning ("[%d] vppcom_app_session_enable() failed!", - getpid ()); + clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() " + "failed!", getpid ()); return rv; } - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sending app attach", getpid ()); + VDBG (0, "VCL<%d>: sending app attach", getpid ()); rv = vppcom_app_attach (); if (rv) { - clib_warning ("[%d] vppcom_app_attach() failed!", getpid ()); + clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!", + getpid ()); return rv; } - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)", - getpid (), app_name, vcm->my_client_index, - vcm->my_client_index); + VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)", + getpid (), app_name, vcm->my_client_index, vcm->my_client_index); } return VPPCOM_OK; @@ -1963,46 +439,56 @@ void vppcom_app_destroy (void) { int rv; + f64 orig_app_timeout; if (vcm->my_client_index == ~0) return; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)", - getpid (), vcm->my_client_index, vcm->my_client_index); + VDBG (0, "VCL<%d>: detaching from VPP, my_client_index %d (0x%x)", + getpid (), vcm->my_client_index, vcm->my_client_index); + vcl_evt (VCL_EVT_DETACH, vcm); - vppcom_app_detach (); + vppcom_app_send_detach (); + orig_app_timeout = vcm->cfg.app_timeout; + vcm->cfg.app_timeout = 2.0; rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED); + vcm->cfg.app_timeout = orig_app_timeout; if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] application detach timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); - } + VDBG (0, "VCL<%d>: application detach timed out! returning %d (%s)", + getpid (), rv, vppcom_retval_str (rv)); + + vcl_elog_stop (vcm); vl_client_disconnect_from_vlib (); vcm->my_client_index = ~0; vcm->app_state = STATE_APP_START; } int -vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking) +vppcom_session_create (u8 proto, u8 is_nonblocking) { - session_t *session; + vcl_session_t *session; u32 session_index; - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK (); pool_get (vcm->sessions, session); memset (session, 0, sizeof (*session)); session_index = session - vcm->sessions; - session->vrf = vrf; - session->proto = proto; - session->state = STATE_START; - session->is_nonblocking = is_nonblocking ? 1 : 0; - clib_spinlock_unlock (&vcm->sessions_lockp); + session->session_type = proto; + session->session_state = STATE_START; + session->vpp_handle = ~0; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d", getpid (), session_index); + if (is_nonblocking) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK); + + vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state, + is_nonblocking, session_index); + + VCL_SESSION_UNLOCK (); + + VDBG (0, "VCL<%d>: sid %u", getpid (), session_index); return (int) session_index; } @@ -2010,63 +496,51 @@ vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking) int vppcom_session_close (uint32_t session_index) { - session_t *session = 0; + vcl_session_t *session = 0; int rv; - u8 is_server; - u8 is_listen; - u8 is_cut_thru; u8 is_vep; u8 is_vep_session; u32 next_sid; u32 vep_idx; + u64 vpp_handle; + uword *p; session_state_t state; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); - goto done; - } - is_server = session->is_server; - is_listen = session->is_listen; - is_cut_thru = session->is_cut_thru; + VCL_SESSION_LOCK_AND_GET (session_index, &session); is_vep = session->is_vep; is_vep_session = session->is_vep_session; next_sid = session->vep.next_sid; vep_idx = session->vep.vep_idx; - state = session->state; - clib_spinlock_unlock (&vcm->sessions_lockp); + state = session->session_state; + vpp_handle = session->vpp_handle; + VCL_SESSION_UNLOCK (); if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d", getpid (), session_index); + { + if (is_vep) + clib_warning ("VCL<%d>: vep_idx %u / sid %u: " + "closing epoll session...", + getpid (), session_index, session_index); + else + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: " + "closing session...", + getpid (), vpp_handle, session_index); + } if (is_vep) { while (next_sid != ~0) { rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, " - "rv = %s (%d)", getpid (), vep_idx, next_sid, - vppcom_retval_str (rv), rv); + if (PREDICT_FALSE (rv < 0)) + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL " + "vep_idx %u failed! rv %d (%s)", + getpid (), vpp_handle, next_sid, vep_idx, + rv, vppcom_retval_str (rv)); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 0) - clib_warning - ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); - goto done; - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); next_sid = session->vep.next_sid; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); } } else @@ -2074,372 +548,481 @@ vppcom_session_close (uint32_t session_index) if (is_vep_session) { rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, " - "rv = %s (%d)", getpid (), vep_idx, session_index, - vppcom_retval_str (rv), rv); + if (rv < 0) + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL " + "vep_idx %u failed! rv %d (%s)", + getpid (), vpp_handle, session_index, + vep_idx, rv, vppcom_retval_str (rv)); } - if (is_cut_thru && is_server && (state == STATE_ACCEPT)) + if (state & STATE_LISTEN) { - rv = vppcom_session_unbind_cut_thru (session); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] unbind cut-thru (session %d) failed, " - "rv = %s (%d)", - getpid (), session_index, - vppcom_retval_str (rv), rv); + rv = vppcom_session_unbind (session_index); + if (PREDICT_FALSE (rv < 0)) + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: listener unbind " + "failed! rv %d (%s)", + getpid (), vpp_handle, session_index, + rv, vppcom_retval_str (rv)); } - else if (is_server && is_listen) + + else if (state & (CLIENT_STATE_OPEN | SERVER_STATE_OPEN)) { - rv = vppcom_session_unbind (session_index); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] unbind (session %d) failed, rv = %s (%d)", - getpid (), session_index, - vppcom_retval_str (rv), rv); + rv = vppcom_session_disconnect (session_index); + if (PREDICT_FALSE (rv < 0)) + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "session disconnect failed! rv %d (%s)", + getpid (), vpp_handle, session_index, + rv, vppcom_retval_str (rv)); } - else if (state == STATE_CONNECT) - if (vppcom_session_disconnect (session_index)) - goto done; } - clib_spinlock_lock (&vcm->sessions_lockp); + + VCL_SESSION_LOCK_AND_GET (session_index, &session); + vpp_handle = session->vpp_handle; + if (vpp_handle != ~0) + { + p = hash_get (vcm->session_index_by_vpp_handles, vpp_handle); + if (p) + hash_unset (vcm->session_index_by_vpp_handles, vpp_handle); + } pool_put_index (vcm->sessions, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); + + VCL_SESSION_UNLOCK (); + + if (VPPCOM_DEBUG > 0) + { + if (is_vep) + clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.", + getpid (), session_index, session_index); + else + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.", + getpid (), vpp_handle, session_index); + } done: + + vcl_evt (VCL_EVT_CLOSE, session, rv); + return rv; } int vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep) { - session_t *session = 0; + vcl_session_t *session = 0; int rv; if (!ep || !ep->ip) return VPPCOM_EINVAL; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); if (session->is_vep) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + VCL_SESSION_UNLOCK (); + clib_warning ("VCL<%d>: ERROR: sid %u: cannot " + "bind to an epoll session!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - session->vrf = ep->vrf; - session->lcl_addr.is_ip4 = ep->is_ip4; - session->lcl_addr.ip46 = to_ip46 (!ep->is_ip4, ep->ip); - session->lcl_port = ep->port; - - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d, bound to lcl address %U lcl port %u", - getpid (), session_index, format_ip46_address, - &session->lcl_addr.ip46, session->lcl_addr.is_ip4, - clib_net_to_host_u16 (session->lcl_port)); - - clib_spinlock_unlock (&vcm->sessions_lockp); - return VPPCOM_OK; + session->transport.is_ip4 = ep->is_ip4; + session->transport.lcl_ip = to_ip46 (ep->is_ip4 ? IP46_TYPE_IP4 : + IP46_TYPE_IP6, ep->ip); + session->transport.lcl_port = ep->port; + + VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, " + "proto %s", getpid (), session_index, + session->transport.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, &session->transport.lcl_ip, + session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (session->transport.lcl_port), + session->session_type ? "UDP" : "TCP"); + vcl_evt (VCL_EVT_BIND, session); + VCL_SESSION_UNLOCK (); +done: + return rv; } int -vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len) -{ - session_t *listen_session = 0; - int rv; - - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (listen_session_index, &listen_session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), listen_session_index); - return rv; - } +vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len) +{ + vcl_session_t *listen_session = 0; + u64 listen_vpp_handle; + int rv, retval; + + if (q_len == 0 || q_len == ~0) + q_len = vcm->cfg.listen_queue_size; + + VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session); if (listen_session->is_vep) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), listen_session_index); - return VPPCOM_EBADFD; + VCL_SESSION_UNLOCK (); + clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an " + "epoll session!", getpid (), listen_session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (listen_session->is_listen) + listen_vpp_handle = listen_session->vpp_handle; + if (listen_session->session_state & STATE_LISTEN) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) is already in listen state!", - getpid (), listen_session_index); - return VPPCOM_OK; + VCL_SESSION_UNLOCK (); + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!", + getpid (), listen_vpp_handle, listen_session_index); + rv = VPPCOM_OK; + goto done; } - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d", getpid (), listen_session_index); + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen " + "request...", getpid (), listen_vpp_handle, listen_session_index); - ASSERT (vcm->bind_session_index == ~0); - vcm->bind_session_index = listen_session_index; - vppcom_send_bind_sock (listen_session); - clib_spinlock_unlock (&vcm->sessions_lockp); - rv = + vppcom_send_bind_sock (listen_session, listen_session_index); + VCL_SESSION_UNLOCK (); + retval = vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN, vcm->cfg.session_timeout); - if (PREDICT_FALSE (rv)) + + VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session); + if (PREDICT_FALSE (retval)) { - vcm->bind_session_index = ~0; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] server listen timed out, rv = %d (%d)", - getpid (), vppcom_retval_str (rv), rv); - return rv; + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! " + "returning %d (%s)", getpid (), listen_session->vpp_handle, + listen_session_index, retval, vppcom_retval_str (retval)); + VCL_SESSION_UNLOCK (); + rv = retval; + goto done; } - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (listen_session_index, &listen_session); - if (PREDICT_FALSE (rv)) + VCL_ACCEPT_FIFO_LOCK (); + clib_fifo_validate (vcm->client_session_index_fifo, q_len); + VCL_ACCEPT_FIFO_UNLOCK (); + + VCL_SESSION_UNLOCK (); + +done: + return rv; +} + +int +validate_args_session_accept_ (vcl_session_t * listen_session) +{ + u32 listen_session_index = listen_session - vcm->sessions; + + /* Input validation - expects spinlock on sessions_lockp */ + if (listen_session->is_vep) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), listen_session_index); - return rv; + clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an " + "epoll session!", getpid (), listen_session_index); + return VPPCOM_EBADFD; } - listen_session->is_listen = 1; - clib_fifo_validate (vcm->client_session_index_fifo, q_len); - clib_spinlock_unlock (&vcm->sessions_lockp); + if (listen_session->session_state != STATE_LISTEN) + { + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "not in listen state! state 0x%x (%s)", getpid (), + listen_session->vpp_handle, listen_session_index, + listen_session->session_state, + vppcom_session_state_str (listen_session->session_state)); + return VPPCOM_EBADFD; + } return VPPCOM_OK; } int vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, - double wait_for_time) + uint32_t flags) { - session_t *listen_session = 0; - session_t *client_session = 0; - u32 client_session_index; + vcl_session_t *listen_session = 0; + vcl_session_t *client_session = 0; + u32 client_session_index = ~0; int rv; - f64 wait_for; + u64 listen_vpp_handle; + vce_event_handler_reg_t *reg; + vce_event_t *ev; + vce_event_connect_request_t *result; + struct timespec ts; + struct timeval tv; + int millisecond_timeout = 1; + int hours_timeout = 20 * 60 * 60; + + VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session); + listen_vpp_handle = listen_session->vpp_handle; // For debugging + + rv = validate_args_session_accept_ (listen_session); + if (rv) + { + VCL_SESSION_UNLOCK (); + goto done; + } - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (listen_session_index, &listen_session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), listen_session_index); - return rv; + /* Using an aggressive timer of 1ms and a generous timer of + * 20 hours, we can implement a blocking and non-blocking listener + * as both event and time driven */ + gettimeofday (&tv, NULL); + ts.tv_nsec = (tv.tv_usec * 1000) + (1000 * millisecond_timeout); + ts.tv_sec = tv.tv_sec; + + /* Predict that the Listener is blocking more often than not */ + if (PREDICT_TRUE (!VCL_SESS_ATTR_TEST (listen_session->attr, + VCL_SESS_ATTR_NONBLOCK))) + ts.tv_sec += hours_timeout; + + VCL_SESSION_UNLOCK (); + + /* Register handler for connect_request event on listen_session_index */ + vce_event_key_t evk; + evk.session_index = listen_session_index; + evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; + reg = vce_register_handler (&vcm->event_thread, &evk, + vce_connect_request_handler_fn, 0); + VCL_EVENTS_LOCK (); + ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); + pthread_mutex_lock (®->handler_lock); + while (!ev) + { + VCL_EVENTS_UNLOCK (); + rv = pthread_cond_timedwait (®->handler_cond, + ®->handler_lock, &ts); + if (rv == ETIMEDOUT) + { + rv = VPPCOM_EAGAIN; + goto cleanup; + } + VCL_EVENTS_LOCK (); + ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); } + result = vce_get_event_data (ev, sizeof (*result)); + client_session_index = result->accepted_session_index; + VCL_EVENTS_UNLOCK (); - if (listen_session->is_vep) + /* Remove from the FIFO used to service epoll */ + VCL_ACCEPT_FIFO_LOCK (); + if (clib_fifo_elts (vcm->client_session_index_fifo)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), listen_session_index); - return VPPCOM_EBADFD; + u32 tmp_client_session_index; + clib_fifo_sub1 (vcm->client_session_index_fifo, + tmp_client_session_index); + /* It wasn't ours... put it back ... */ + if (tmp_client_session_index != client_session_index) + clib_fifo_add1 (vcm->client_session_index_fifo, + tmp_client_session_index); } + VCL_ACCEPT_FIFO_UNLOCK (); + + VCL_SESSION_LOCK (); - if (listen_session->state != STATE_LISTEN) + rv = vppcom_session_at_index (client_session_index, &client_session); + if (PREDICT_FALSE (rv)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] session not in listen state, state = %s", - getpid (), - vppcom_session_state_str (listen_session->state)); - return VPPCOM_EBADFD; + rv = VPPCOM_ECONNABORTED; + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: client sid %u " + "lookup failed! returning %d (%s)", getpid (), + listen_vpp_handle, listen_session_index, + client_session_index, rv, vppcom_retval_str (rv)); + goto cleanup; } - wait_for = listen_session->is_nonblocking ? 0 : - (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d: %s (%d)", getpid (), - listen_session_index, - vppcom_session_state_str (listen_session->state), - listen_session->state); - clib_spinlock_unlock (&vcm->sessions_lockp); + if (flags & O_NONBLOCK) + VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK); + else + VCL_SESS_ATTR_CLR (client_session->attr, VCL_SESS_ATTR_NONBLOCK); - while (1) + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! " + "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u", + getpid (), listen_vpp_handle, listen_session_index, + client_session->vpp_handle, client_session_index, + flags, VCL_SESS_ATTR_TEST (client_session->attr, + VCL_SESS_ATTR_NONBLOCK)); + + if (ep) { - rv = vppcom_wait_for_client_session_index (wait_for); - if (rv) - { - if ((VPPCOM_DEBUG > 0)) - clib_warning ("[%d] sid %d, accept timed out, rv = %s (%d)", - getpid (), listen_session_index, - vppcom_retval_str (rv), rv); - if ((wait_for == 0) || (wait_for_time > 0)) - return rv; - } + ep->is_ip4 = client_session->transport.is_ip4; + ep->port = client_session->transport.rmt_port; + if (client_session->transport.is_ip4) + clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip4, + sizeof (ip4_address_t)); else - break; + clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip6, + sizeof (ip6_address_t)); } - clib_spinlock_lock (&vcm->sessions_lockp); - clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index); - rv = vppcom_session_at_index (client_session_index, &client_session); - ASSERT (rv == VPPCOM_OK); - ASSERT (client_session->peer_addr.is_ip4 == - listen_session->lcl_addr.is_ip4); + vppcom_send_accept_session_reply (client_session->vpp_handle, + client_session->client_context, + 0 /* retval OK */ ); + + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx," + " sid %u connection from peer %s address %U port %u to local %s address" + " %U port %u", + getpid (), listen_vpp_handle, + listen_session_index, client_session->vpp_handle, + client_session_index, + client_session->transport.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, &client_session->transport.rmt_ip, + client_session->transport.is_ip4 ? + IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (client_session->transport.rmt_port), + client_session->transport.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, &client_session->transport.lcl_ip, + client_session->transport.is_ip4 ? + IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (client_session->transport.lcl_port)); + vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session, + client_session_index); + VCL_SESSION_UNLOCK (); + + rv = (int) client_session_index; + vce_clear_event (&vcm->event_thread, reg->ev_idx); + if (vcm->session_io_thread.io_sessions_lockp) + { + /* Throw this new accepted session index into the rx poll thread pool */ + VCL_IO_SESSIONS_LOCK (); + u32 *active_session_index; + pool_get (vcm->session_io_thread.active_session_indexes, + active_session_index); + *active_session_index = client_session_index; + VCL_IO_SESSIONS_UNLOCK (); + } +cleanup: + vce_unregister_handler (&vcm->event_thread, reg); + pthread_mutex_unlock (®->handler_lock); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] Got a request: client sid %d", getpid (), - client_session_index); - - // Copy the lcl information from the listening session to the client session - // client_session->lcl_port = listen_session->lcl_port; - // client_session->lcl_addr = listen_session->lcl_addr; - - ep->vrf = client_session->vrf; - ep->is_cut_thru = client_session->is_cut_thru; - ep->is_ip4 = client_session->peer_addr.is_ip4; - ep->port = client_session->peer_port; - if (client_session->peer_addr.is_ip4) - clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip4, - sizeof (ip4_address_t)); - else - clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip6, - sizeof (ip6_address_t)); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d, accepted peer address %U peer port %u", - getpid (), client_session_index, format_ip46_address, - &client_session->peer_addr.ip46, - client_session->peer_addr.is_ip4, - clib_net_to_host_u16 (client_session->peer_port)); - clib_spinlock_unlock (&vcm->sessions_lockp); - return (int) client_session_index; +done: + return rv; } int vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep) { - session_t *session = 0; - int rv; + vcl_session_t *session = 0; + u64 vpp_handle = 0; + int rv, retval = VPPCOM_OK; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); - if (session->is_vep) + if (PREDICT_FALSE (session->is_vep)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + VCL_SESSION_UNLOCK (); + clib_warning ("VCL<%d>: ERROR: sid %u: cannot " + "connect on an epoll session!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_CONNECT) + if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] session, sid (%u) already connected!", - getpid (), session_index); - return VPPCOM_OK; - } - - session->vrf = server_ep->vrf; - session->peer_addr.is_ip4 = server_ep->is_ip4; - session->peer_addr.ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip); - session->peer_port = server_ep->port; + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already " + "connected to %s %U port %d proto %s, state 0x%x (%s)", + getpid (), session->vpp_handle, session_index, + session->transport.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, + &session->transport.rmt_ip, session->transport.is_ip4 ? + IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (session->transport.rmt_port), + session->session_type ? "UDP" : "TCP", session->session_state, + vppcom_session_state_str (session->session_state)); - if (VPPCOM_DEBUG > 0) - { - u8 *ip_str = format (0, "%U", format_ip46_address, - &session->peer_addr.ip46, - session->peer_addr.is_ip4); - clib_warning ("[%d] connect sid %d to %s server port %d proto %s", - getpid (), session_index, ip_str, - clib_net_to_host_u16 (session->peer_port), - session->proto ? "UDP" : "TCP"); - vec_free (ip_str); + VCL_SESSION_UNLOCK (); + goto done; } + session->transport.is_ip4 = server_ep->is_ip4; + if (session->transport.is_ip4) + clib_memcpy (&session->transport.rmt_ip.ip4, server_ep->ip, + sizeof (ip4_address_t)); + else + clib_memcpy (&session->transport.rmt_ip.ip6, server_ep->ip, + sizeof (ip6_address_t)); + session->transport.rmt_port = server_ep->port; + + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U " + "port %d proto %s", + getpid (), session->vpp_handle, session_index, + session->transport.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, + &session->transport.rmt_ip, session->transport.is_ip4 ? + IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (session->transport.rmt_port), + session->session_type ? "UDP" : "TCP"); + vppcom_send_connect_sock (session, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); - rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT, - vcm->cfg.session_timeout); - if (PREDICT_FALSE (rv)) + VCL_SESSION_UNLOCK (); + + retval = + vppcom_wait_for_session_state_change (session_index, STATE_CONNECT, + vcm->cfg.session_timeout); + + VCL_SESSION_LOCK_AND_GET (session_index, &session); + vpp_handle = session->vpp_handle; + VCL_SESSION_UNLOCK (); + +done: + if (PREDICT_FALSE (retval)) { + rv = retval; if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] connect timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); - return rv; + { + if (session) + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect " + "failed! returning %d (%s)", getpid (), vpp_handle, + session_index, rv, vppcom_retval_str (rv)); + else + clib_warning ("VCL<%d>: no session for sid %u: connect failed! " + "returning %d (%s)", getpid (), + session_index, rv, vppcom_retval_str (rv)); + } } - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d connected!", getpid (), session_index); + else + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!", + getpid (), vpp_handle, session_index); - return VPPCOM_OK; + return rv; } static inline int vppcom_session_read_internal (uint32_t session_index, void *buf, int n, u8 peek) { - session_t *session = 0; + vcl_session_t *session = 0; svm_fifo_t *rx_fifo; int n_read = 0; int rv; - char *fifo_str; + int is_nonblocking; + + u64 vpp_handle; u32 poll_et; + session_state_t state; ASSERT (buf); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); - if (session->is_vep) + is_nonblocking = VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK); + rx_fifo = session->rx_fifo; + state = session->session_state; + vpp_handle = session->vpp_handle; + + if (PREDICT_FALSE (session->is_vep)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + VCL_SESSION_UNLOCK (); + clib_warning ("VCL<%d>: ERROR: sid %u: cannot " + "read from an epoll session!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_DISCONNECT) + if (PREDICT_FALSE (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + VCL_SESSION_UNLOCK (); + rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); + + VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! " + "state 0x%x (%s), returning %d (%s)", + getpid (), vpp_handle, session_index, state, + vppcom_session_state_str (state), rv, vppcom_retval_str (rv)); + goto done; } - rx_fifo = ((!session->is_cut_thru || session->is_server) ? - session->server_rx_fifo : session->server_tx_fifo); - fifo_str = ((!session->is_cut_thru || session->is_server) ? - "server_rx_fifo" : "server_tx_fifo"); - poll_et = EPOLLET & session->vep.ev.events; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); do { @@ -2448,24 +1031,57 @@ vppcom_session_read_internal (uint32_t session_index, void *buf, int n, else n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf); } - while (!session->is_nonblocking && (n_read <= 0)); + while (!is_nonblocking && (n_read <= 0)); - if (poll_et && (n_read <= 0)) + if (n_read <= 0) { - clib_spinlock_lock (&vcm->sessions_lockp); - session->vep.et_mask |= EPOLLIN; - clib_spinlock_unlock (&vcm->sessions_lockp); - } + VCL_SESSION_LOCK_AND_GET (session_index, &session); + + poll_et = (((EPOLLET | EPOLLIN) & session->vep.ev.events) == + (EPOLLET | EPOLLIN)); + if (poll_et) + session->vep.et_mask |= EPOLLIN; + + if (state & STATE_CLOSE_ON_EMPTY) + { + rv = VPPCOM_ECONNRESET; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with " + "session state 0x%x (%s)! Setting state to 0x%x (%s), " + "returning %d (%s)", + getpid (), session->vpp_handle, session_index, + state, vppcom_session_state_str (state), + STATE_DISCONNECT, + vppcom_session_state_str (STATE_DISCONNECT), rv, + vppcom_retval_str (rv)); + + session->session_state = STATE_DISCONNECT; + } + else + rv = VPPCOM_EAGAIN; - if ((VPPCOM_DEBUG > 2) && (n_read > 0)) - clib_warning ("[%d] sid %d, read %d bytes from %s (%p)", getpid (), - session_index, n_read, fifo_str, rx_fifo); + VCL_SESSION_UNLOCK (); + } + else + rv = n_read; - return (n_read <= 0) ? VPPCOM_EAGAIN : n_read; + if (VPPCOM_DEBUG > 2) + { + if (rv > 0) + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes " + "from (%p)", getpid (), vpp_handle, + session_index, n_read, rx_fifo); + else + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! " + "returning %d (%s)", getpid (), vpp_handle, + session_index, rv, vppcom_retval_str (rv)); + } +done: + return rv; } int -vppcom_session_read (uint32_t session_index, void *buf, int n) +vppcom_session_read (uint32_t session_index, void *buf, size_t n) { return (vppcom_session_read_internal (session_index, buf, n, 0)); } @@ -2477,186 +1093,286 @@ vppcom_session_peek (uint32_t session_index, void *buf, int n) } static inline int -vppcom_session_read_ready (session_t * session, u32 session_index) +vppcom_session_read_ready (vcl_session_t * session, u32 session_index) { - svm_fifo_t *rx_fifo = 0; int ready = 0; + u32 poll_et; + int rv; + session_state_t state = session->session_state; + u64 vpp_handle = session->vpp_handle; /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - if (session->is_vep) + if (PREDICT_FALSE (session->is_vep)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an " + "epoll session!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_DISCONNECT) + if (session->session_state & STATE_LISTEN) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + VCL_ACCEPT_FIFO_LOCK (); + ready = clib_fifo_elts (vcm->client_session_index_fifo); + VCL_ACCEPT_FIFO_UNLOCK (); } - - if (session->is_listen) - ready = clib_fifo_elts (vcm->client_session_index_fifo); else { - rx_fifo = ((!session->is_cut_thru || session->is_server) ? - session->server_rx_fifo : session->server_tx_fifo); + if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN | STATE_LISTEN))) + { + rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : + VPPCOM_ENOTCONN); + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!" + " state 0x%x (%s), returning %d (%s)", + getpid (), vpp_handle, session_index, + state, vppcom_session_state_str (state), + rv, vppcom_retval_str (rv)); + goto done; + } + + ready = svm_fifo_max_dequeue (session->rx_fifo); + } + + if (ready == 0) + { + poll_et = + ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN); + if (poll_et) + session->vep.et_mask |= EPOLLIN; - ready = svm_fifo_max_dequeue (rx_fifo); + if (state & STATE_CLOSE_ON_EMPTY) + { + rv = VPPCOM_ECONNRESET; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with " + "session state 0x%x (%s)! Setting state to 0x%x (%s), " + "returning %d (%s)", + getpid (), session_index, vpp_handle, + state, vppcom_session_state_str (state), + STATE_DISCONNECT, + vppcom_session_state_str (STATE_DISCONNECT), rv, + vppcom_retval_str (rv)); + session->session_state = STATE_DISCONNECT; + goto done; + } } + rv = ready; - if (VPPCOM_DEBUG > 3) - clib_warning ("[%d] sid %d, is_listen %u, peek %s (%p), ready = %d", - getpid (), session_index, session->is_listen, - session->is_server ? "server_rx_fifo" : "server_tx_fifo", - rx_fifo, ready); - if ((session->vep.ev.events & EPOLLET) && (ready == 0)) - session->vep.et_mask |= EPOLLIN; - - return ready; + if (!svm_msg_q_is_empty (vcm->app_event_queue) && + !pthread_mutex_trylock (&vcm->app_event_queue->q->mutex)) + { + u32 i, n_to_dequeue = vcm->app_event_queue->q->cursize; + svm_msg_q_msg_t msg; + + for (i = 0; i < n_to_dequeue; i++) + { + svm_queue_sub_raw (vcm->app_event_queue->q, (u8 *) & msg); + svm_msg_q_free_msg (vcm->app_event_queue, &msg); + } + + pthread_mutex_unlock (&vcm->app_event_queue->q->mutex); + } +done: + return rv; } int -vppcom_session_write (uint32_t session_index, void *buf, int n) +vppcom_session_write (uint32_t session_index, void *buf, size_t n) { - session_t *session = 0; - svm_fifo_t *tx_fifo; - unix_shared_memory_queue_t *q; - session_fifo_event_t evt; - int rv, n_write; - char *fifo_str; + vcl_session_t *session = 0; + svm_fifo_t *tx_fifo = 0; + svm_msg_q_t *mq; + session_state_t state; + int rv, n_write, is_nonblocking; u32 poll_et; + u64 vpp_handle; ASSERT (buf); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) + VCL_SESSION_LOCK_AND_GET (session_index, &session); + + tx_fifo = session->tx_fifo; + is_nonblocking = VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK); + vpp_handle = session->vpp_handle; + state = session->session_state; + + if (PREDICT_FALSE (session->is_vep)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; + VCL_SESSION_UNLOCK (); + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "cannot write to an epoll session!", + getpid (), vpp_handle, session_index); + + rv = VPPCOM_EBADFD; + goto done; } - if (session->is_vep) + if (!(session->session_state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + rv = + ((session->session_state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : + VPPCOM_ENOTCONN); + + VCL_SESSION_UNLOCK (); + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! " + "state 0x%x (%s)", + getpid (), vpp_handle, session_index, + state, vppcom_session_state_str (state)); + goto done; } - if (session->state == STATE_DISCONNECT) + VCL_SESSION_UNLOCK (); + + do { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + n_write = svm_fifo_enqueue_nowait (tx_fifo, n, (void *) buf); } + while (!is_nonblocking && (n_write <= 0)); - tx_fifo = ((!session->is_cut_thru || session->is_server) ? - session->server_tx_fifo : session->server_rx_fifo); - fifo_str = ((!session->is_cut_thru || session->is_server) ? - "server_tx_fifo" : "server_rx_fifo"); - q = session->vpp_event_queue; - poll_et = EPOLLET & session->vep.ev.events; - clib_spinlock_unlock (&vcm->sessions_lockp); + /* If event wasn't set, add one + * + * To reduce context switching, can check if an + * event is already there for this event_key, but for now + * this will suffice. */ - do + if ((n_write > 0) && svm_fifo_set_event (tx_fifo)) { - n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf); + /* Send TX event to vpp */ + VCL_SESSION_LOCK_AND_GET (session_index, &session); + mq = session->vpp_evt_q; + ASSERT (mq); + app_send_io_evt_to_vpp (mq, tx_fifo, FIFO_EVENT_APP_TX, SVM_Q_WAIT); + VCL_SESSION_UNLOCK (); + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: added FIFO_EVENT_APP_TX " + "to vpp_event_q %p, n_write %d", getpid (), + vpp_handle, session_index, mq, n_write); } - while (!session->is_nonblocking && (n_write <= 0)); - /* If event wasn't set, add one */ - if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo)) + if (n_write <= 0) { - int rval; + VCL_SESSION_LOCK_AND_GET (session_index, &session); - /* Fabricate TX event, send to vpp */ - evt.fifo = tx_fifo; - evt.event_type = FIFO_EVENT_APP_TX; + poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) == + (EPOLLET | EPOLLOUT)); + if (poll_et) + session->vep.et_mask |= EPOLLOUT; - rval = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rval)) + if (session->session_state & STATE_CLOSE_ON_EMPTY) { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rval; + rv = VPPCOM_ECONNRESET; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with " + "session state 0x%x (%s)! Setting state to 0x%x (%s), " + "returning %d (%s)", + getpid (), session->vpp_handle, session_index, + session->session_state, + vppcom_session_state_str (session->session_state), + STATE_DISCONNECT, + vppcom_session_state_str (STATE_DISCONNECT), rv, + vppcom_retval_str (rv)); + + session->session_state = STATE_DISCONNECT; } - ASSERT (q); - unix_shared_memory_queue_add (q, (u8 *) & evt, - 0 /* do wait for mutex */ ); - } + else + rv = VPPCOM_EAGAIN; - if (poll_et && (n_write <= 0)) - { - clib_spinlock_lock (&vcm->sessions_lockp); - session->vep.et_mask |= EPOLLOUT; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); } + else + rv = n_write; if (VPPCOM_DEBUG > 2) { - if (n_write == -2) - clib_warning ("[%d] sid %d, FIFO-FULL %s (%p)", getpid (), - session_index, fifo_str, tx_fifo); + if (n_write <= 0) + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: " + "FIFO-FULL (%p)", getpid (), vpp_handle, + session_index, tx_fifo); else - clib_warning ("[%d] sid %d, wrote %d bytes to %s (%p)", getpid (), - session_index, n_write, fifo_str, tx_fifo); + clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: " + "wrote %d bytes tx-fifo: (%p)", getpid (), + vpp_handle, session_index, n_write, tx_fifo); } - return (n_write < 0) ? VPPCOM_EAGAIN : n_write; +done: + return rv; } static inline int -vppcom_session_write_ready (session_t * session, u32 session_index) +vppcom_session_write_ready (vcl_session_t * session, u32 session_index) { - svm_fifo_t *tx_fifo; - char *fifo_str; int ready; + u32 poll_et; + int rv; + + ASSERT (session); /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - if (session->is_vep) + if (PREDICT_FALSE (session->is_vep)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "cannot write to an epoll session!", + getpid (), session->vpp_handle, session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_DISCONNECT) + if (PREDICT_FALSE (session->session_state & STATE_LISTEN)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "cannot write to a listen session!", + getpid (), session->vpp_handle, session_index); + rv = VPPCOM_EBADFD; + goto done; } - tx_fifo = ((!session->is_cut_thru || session->is_server) ? - session->server_tx_fifo : session->server_rx_fifo); - fifo_str = ((!session->is_cut_thru || session->is_server) ? - "server_tx_fifo" : "server_rx_fifo"); + if (!(session->session_state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))) + { + session_state_t state = session->session_state; - ready = svm_fifo_max_enqueue (tx_fifo); + rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); - if (VPPCOM_DEBUG > 3) - clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", getpid (), - session_index, fifo_str, tx_fifo, ready); - if ((session->vep.ev.events & EPOLLET) && (ready == 0)) - session->vep.et_mask |= EPOLLOUT; + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "session is not open! state 0x%x (%s), " + "returning %d (%s)", getpid (), session->vpp_handle, + session_index, + state, vppcom_session_state_str (state), + rv, vppcom_retval_str (rv)); + goto done; + } + + ready = svm_fifo_max_enqueue (session->tx_fifo); + + VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d", + getpid (), session->vpp_handle, session_index, session->tx_fifo, + ready); - return ready; + if (ready == 0) + { + poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) == + (EPOLLET | EPOLLOUT)); + if (poll_et) + session->vep.et_mask |= EPOLLOUT; + + if (session->session_state & STATE_CLOSE_ON_EMPTY) + { + rv = VPPCOM_ECONNRESET; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: Empty fifo with " + "session state 0x%x (%s)! Setting state to 0x%x (%s), " + "returning %d (%s)", getpid (), + session->vpp_handle, session_index, + session->session_state, + vppcom_session_state_str (session->session_state), + STATE_DISCONNECT, + vppcom_session_state_str (STATE_DISCONNECT), rv, + vppcom_retval_str (rv)); + session->session_state = STATE_DISCONNECT; + goto done; + } + } + rv = ready; +done: + return rv; } int @@ -2665,7 +1381,7 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, double time_to_wait) { u32 session_index; - session_t *session = 0; + vcl_session_t *session = 0; int rv, bits_set = 0; f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait; u32 minbits = clib_max (n_bits, BITS (uword)); @@ -2675,20 +1391,25 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, if (n_bits && read_map) { clib_bitmap_validate (vcm->rd_bitmap, minbits); - clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap)); - memset (read_map, 0, vec_len (vcm->rd_bitmap)); + clib_memcpy (vcm->rd_bitmap, read_map, + vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t)); + memset (read_map, 0, vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t)); } if (n_bits && write_map) { clib_bitmap_validate (vcm->wr_bitmap, minbits); - clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap)); - memset (write_map, 0, vec_len (vcm->wr_bitmap)); + clib_memcpy (vcm->wr_bitmap, write_map, + vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t)); + memset (write_map, 0, + vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t)); } if (n_bits && except_map) { clib_bitmap_validate (vcm->ex_bitmap, minbits); - clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap)); - memset (except_map, 0, vec_len (vcm->ex_bitmap)); + clib_memcpy (vcm->ex_bitmap, except_map, + vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t)); + memset (except_map, 0, + vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t)); } do @@ -2700,32 +1421,52 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, { clib_bitmap_foreach (session_index, vcm->rd_bitmap, ({ - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK(); rv = vppcom_session_at_index (session_index, &session); if (rv < 0) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] session %d specified in " - "read_map is closed.", getpid (), + VCL_SESSION_UNLOCK(); + VDBG (1, "VCL<%d>: session %d specified in read_map is" + " closed.", getpid (), session_index); bits_set = VPPCOM_EBADFD; goto select_done; } - - rv = vppcom_session_read_ready (session, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); + if (session->session_state & STATE_LISTEN) + { + vce_event_handler_reg_t *reg = 0; + vce_event_key_t evk; + + /* Check if handler already registered for this + * event. + * If not, register handler for connect_request event + * on listen_session_index + */ + evk.session_index = session_index; + evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; + reg = vce_get_event_handler (&vcm->event_thread, &evk); + if (!reg) + reg = vce_register_handler (&vcm->event_thread, &evk, + vce_poll_wait_connect_request_handler_fn, + 0 /* No callback args */); + rv = vppcom_session_read_ready (session, session_index); + if (rv > 0) + { + vce_unregister_handler (&vcm->event_thread, reg); + } + } + else + rv = vppcom_session_read_ready (session, session_index); + VCL_SESSION_UNLOCK(); if (except_map && vcm->ex_bitmap && clib_bitmap_get (vcm->ex_bitmap, session_index) && (rv < 0)) { - // TBD: clib_warning clib_bitmap_set_no_check (except_map, session_index, 1); bits_set++; } else if (rv > 0) { - // TBD: clib_warning clib_bitmap_set_no_check (read_map, session_index, 1); bits_set++; } @@ -2736,13 +1477,12 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, { clib_bitmap_foreach (session_index, vcm->wr_bitmap, ({ - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK(); rv = vppcom_session_at_index (session_index, &session); if (rv < 0) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] session %d specified in " + VCL_SESSION_UNLOCK(); + VDBG (0, "VCL<%d>: session %d specified in " "write_map is closed.", getpid (), session_index); bits_set = VPPCOM_EBADFD; @@ -2750,10 +1490,9 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, } rv = vppcom_session_write_ready (session, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK(); if (write_map && (rv > 0)) { - // TBD: clib_warning clib_bitmap_set_no_check (write_map, session_index, 1); bits_set++; } @@ -2764,24 +1503,22 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, { clib_bitmap_foreach (session_index, vcm->ex_bitmap, ({ - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK(); rv = vppcom_session_at_index (session_index, &session); if (rv < 0) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] session %d specified in " - "except_map is closed.", getpid (), + VCL_SESSION_UNLOCK(); + VDBG (1, "VCL<%d>: session %d specified in except_map " + "is closed.", getpid (), session_index); bits_set = VPPCOM_EBADFD; goto select_done; } rv = vppcom_session_read_ready (session, session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK(); if (rv < 0) { - // TBD: clib_warning clib_bitmap_set_no_check (except_map, session_index, 1); bits_set++; } @@ -2790,7 +1527,7 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, } /* *INDENT-ON* */ } - while (clib_time_now (&vcm->clib_time) < timeout); + while ((time_to_wait == -1) || (clib_time_now (&vcm->clib_time) < timeout)); select_done: return (bits_set); @@ -2799,7 +1536,7 @@ select_done: static inline void vep_verify_epoll_chain (u32 vep_idx) { - session_t *session; + vcl_session_t *session; vppcom_epoll_t *vep; int rv; u32 sid = vep_idx; @@ -2811,80 +1548,81 @@ vep_verify_epoll_chain (u32 vep_idx) rv = vppcom_session_at_index (vep_idx, &session); if (PREDICT_FALSE (rv)) { - clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", getpid (), vep_idx); + clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", + getpid (), vep_idx); goto done; } if (PREDICT_FALSE (!session->is_vep)) { - clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", getpid (), - vep_idx); + clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!", + getpid (), vep_idx); goto done; } - clib_warning ("[%d] vep_idx (%u): Dumping epoll chain\n" + vep = &session->vep; + clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n" "{\n" " is_vep = %u\n" " is_vep_session = %u\n" + " next_sid = 0x%x (%u)\n" " wait_cont_idx = 0x%x (%u)\n" - "}\n", getpid (), - vep_idx, session->is_vep, session->is_vep_session, + "}\n", getpid (), vep_idx, + session->is_vep, session->is_vep_session, + vep->next_sid, vep->next_sid, session->wait_cont_idx, session->wait_cont_idx); - do + + for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid) { + rv = vppcom_session_at_index (sid, &session); + if (PREDICT_FALSE (rv)) + { + clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid); + goto done; + } + if (PREDICT_FALSE (session->is_vep)) + clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!", + getpid (), vep_idx); + else if (PREDICT_FALSE (!session->is_vep_session)) + { + clib_warning ("VCL<%d>: ERROR: session (%u) " + "is not a vep session!", getpid (), sid); + goto done; + } vep = &session->vep; - sid = vep->next_sid; - if (sid != ~0) + if (PREDICT_FALSE (vep->vep_idx != vep_idx)) + clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != " + "vep_idx (%u)!", getpid (), + sid, session->vep.vep_idx, vep_idx); + if (session->is_vep_session) { - rv = vppcom_session_at_index (sid, &session); - if (PREDICT_FALSE (rv)) - { - clib_warning ("[%d] ERROR: Invalid sid (%u)!", getpid (), sid); - goto done; - } - if (PREDICT_FALSE (session->is_vep)) - clib_warning ("[%d] ERROR: sid (%u) is a vep!", - getpid (), vep_idx); - else if (PREDICT_FALSE (!session->is_vep_session)) - { - clib_warning ("[%d] ERROR: session (%u) is not a vep session!", - getpid (), sid); - goto done; - } - if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) - clib_warning ("[%d] ERROR: session (%u) vep_idx (%u) != " - "vep_idx (%u)!", getpid (), - sid, session->vep.vep_idx, vep_idx); - if (session->is_vep_session) - { - clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n" - "{\n" - " next_sid = 0x%x (%u)\n" - " prev_sid = 0x%x (%u)\n" - " vep_idx = 0x%x (%u)\n" - " ev.events = 0x%x\n" - " ev.data.u64 = 0x%llx\n" - " et_mask = 0x%x\n" - "}\n", - vep_idx, sid, sid, - vep->next_sid, vep->next_sid, - vep->prev_sid, vep->prev_sid, - vep->vep_idx, vep->vep_idx, - vep->ev.events, vep->ev.data.u64, vep->et_mask); - } + clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n" + "{\n" + " next_sid = 0x%x (%u)\n" + " prev_sid = 0x%x (%u)\n" + " vep_idx = 0x%x (%u)\n" + " ev.events = 0x%x\n" + " ev.data.u64 = 0x%llx\n" + " et_mask = 0x%x\n" + "}\n", + vep_idx, sid, sid, + vep->next_sid, vep->next_sid, + vep->prev_sid, vep->prev_sid, + vep->vep_idx, vep->vep_idx, + vep->ev.events, vep->ev.data.u64, vep->et_mask); } } - while (sid != ~0); done: - clib_warning ("[%d] vep_idx (%u): Dump complete!\n", getpid (), vep_idx); + clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n", + getpid (), vep_idx); } int vppcom_epoll_create (void) { - session_t *vep_session; + vcl_session_t *vep_session; u32 vep_idx; - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK (); pool_get (vcm->sessions, vep_session); memset (vep_session, 0, sizeof (*vep_session)); vep_idx = vep_session - vcm->sessions; @@ -2894,10 +1632,14 @@ vppcom_epoll_create (void) vep_session->vep.next_sid = ~0; vep_session->vep.prev_sid = ~0; vep_session->wait_cont_idx = ~0; - clib_spinlock_unlock (&vcm->sessions_lockp); + vep_session->vpp_handle = ~0; + vep_session->poll_reg = 0; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] Created vep_idx %u!", getpid (), vep_idx); + vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_idx); + VCL_SESSION_UNLOCK (); + + VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!", + getpid (), vep_idx, vep_idx); return (vep_idx); } @@ -2906,31 +1648,28 @@ int vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, struct epoll_event *event) { - session_t *vep_session; - session_t *session; + vcl_session_t *vep_session; + vcl_session_t *session; int rv; if (vep_idx == session_index) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: vep_idx == session_index (%u)!", - getpid (), vep_idx); + clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!", + getpid (), vep_idx); return VPPCOM_EINVAL; } - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK (); rv = vppcom_session_at_index (vep_idx, &vep_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", vep_idx); + clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_idx); goto done; } if (PREDICT_FALSE (!vep_session->is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!", + getpid (), vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -2941,15 +1680,13 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, rv = vppcom_session_at_index (session_index, &session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: Invalid session_index (%u)!", - getpid (), session_index); + VDBG (0, "VCL<%d>: ERROR: Invalid session_index (%u)!", + getpid (), session_index); goto done; } if (PREDICT_FALSE (session->is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx); + clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -2959,22 +1696,21 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, case EPOLL_CTL_ADD: if (PREDICT_FALSE (!event)) { - clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: NULL pointer to " + clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to " "epoll_event structure!", getpid ()); rv = VPPCOM_EINVAL; goto done; } if (vep_session->vep.next_sid != ~0) { - session_t *next_session; + vcl_session_t *next_session; rv = vppcom_session_at_index (vep_session->vep.next_sid, &next_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: Invalid " - "vep.next_sid (%u) on vep_idx (%u)!", - getpid (), vep_session->vep.next_sid, vep_idx); + clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid " + "vep.next_sid (%u) on vep_idx (%u)!", + getpid (), vep_session->vep.next_sid, vep_idx); goto done; } ASSERT (next_session->vep.prev_sid == vep_idx); @@ -2985,68 +1721,85 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, session->vep.vep_idx = vep_idx; session->vep.et_mask = VEP_DEFAULT_ET_MASK; session->vep.ev = *event; + session->is_vep = 0; session->is_vep_session = 1; vep_session->vep.next_sid = session_index; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x," - " data 0x%llx!", getpid (), vep_idx, session_index, - event->events, event->data.u64); + + /* VCL Event Register handler */ + if (session->session_state & STATE_LISTEN) + { + /* Register handler for connect_request event on listen_session_index */ + vce_event_key_t evk; + evk.session_index = session_index; + evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; + vep_session->poll_reg = + vce_register_handler (&vcm->event_thread, &evk, + vce_poll_wait_connect_request_handler_fn, + 0 /* No callback args */ ); + } + VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, " + "sid %u, events 0x%x, data 0x%llx!", + getpid (), vep_idx, session_index, + event->events, event->data.u64); + vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64); break; case EPOLL_CTL_MOD: if (PREDICT_FALSE (!event)) { - clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: NULL pointer to " + clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to " "epoll_event structure!", getpid ()); rv = VPPCOM_EINVAL; goto done; } - if (PREDICT_FALSE (!session->is_vep_session && - (session->vep.vep_idx != vep_idx))) + else if (PREDICT_FALSE (!session->is_vep_session)) { - if (VPPCOM_DEBUG > 0) - { - if (!session->is_vep_session) - clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: session (%u) " - "is not a vep session!", - getpid (), session_index); - else - clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: session (%u) " - "vep_idx (%u) != vep_idx (%u)!", - getpid (), session_index, - session->vep.vep_idx, vep_idx); - } + clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: " + "not a vep session!", getpid (), session_index); + rv = VPPCOM_EINVAL; + goto done; + } + else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) + { + clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: " + "vep_idx (%u) != vep_idx (%u)!", + getpid (), session_index, + session->vep.vep_idx, vep_idx); rv = VPPCOM_EINVAL; goto done; } session->vep.et_mask = VEP_DEFAULT_ET_MASK; session->vep.ev = *event; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x," - " data 0x%llx!", getpid (), vep_idx, session_index, - event->events, event->data.u64); + VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x," + " data 0x%llx!", getpid (), vep_idx, session_index, event->events, + event->data.u64); break; case EPOLL_CTL_DEL: - if (PREDICT_FALSE (!session->is_vep_session && - (session->vep.vep_idx != vep_idx))) + if (PREDICT_FALSE (!session->is_vep_session)) + { + clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: " + "not a vep session!", getpid (), session_index); + rv = VPPCOM_EINVAL; + goto done; + } + else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) { - if (VPPCOM_DEBUG > 0) - { - if (!session->is_vep_session) - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: session (%u) " - "is not a vep session!", - getpid (), session_index); - else - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: session (%u) " - "vep_idx (%u) != vep_idx (%u)!", - getpid (), session_index, - session->vep.vep_idx, vep_idx); - } + clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: " + "vep_idx (%u) != vep_idx (%u)!", + getpid (), session_index, + session->vep.vep_idx, vep_idx); rv = VPPCOM_EINVAL; goto done; } + /* VCL Event Un-register handler */ + if ((session->session_state & STATE_LISTEN) && vep_session->poll_reg) + { + (void) vce_unregister_handler (&vcm->event_thread, + vep_session->poll_reg); + } + vep_session->wait_cont_idx = (vep_session->wait_cont_idx == session_index) ? session->vep.next_sid : vep_session->wait_cont_idx; @@ -3055,15 +1808,13 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, vep_session->vep.next_sid = session->vep.next_sid; else { - session_t *prev_session; + vcl_session_t *prev_session; rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid " - "vep.prev_sid (%u) on sid (%u)!", - getpid (), session->vep.prev_sid, - session_index); + clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid " + "vep.prev_sid (%u) on sid (%u)!", + getpid (), session->vep.prev_sid, session_index); goto done; } ASSERT (prev_session->vep.next_sid == session_index); @@ -3071,15 +1822,13 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, } if (session->vep.next_sid != ~0) { - session_t *next_session; + vcl_session_t *next_session; rv = vppcom_session_at_index (session->vep.next_sid, &next_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid " - "vep.next_sid (%u) on sid (%u)!", - getpid (), session->vep.next_sid, - session_index); + clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid " + "vep.next_sid (%u) on sid (%u)!", + getpid (), session->vep.next_sid, session_index); goto done; } ASSERT (next_session->vep.prev_sid == session_index); @@ -3091,44 +1840,28 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, session->vep.prev_sid = ~0; session->vep.vep_idx = ~0; session->is_vep_session = 0; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] EPOLL_CTL_DEL: vep_idx %u, sid %u!", - getpid (), vep_idx, session_index); + VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!", + getpid (), vep_idx, session_index); + vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_idx); break; default: - clib_warning ("[%d] ERROR: Invalid operation (%d)!", getpid (), op); + clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op); rv = VPPCOM_EINVAL; } vep_verify_epoll_chain (vep_idx); done: - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); return rv; } -#define VCL_LOCK_AND_GET_SESSION(I, S) \ -do { \ - clib_spinlock_lock (&vcm->sessions_lockp); \ - rv = vppcom_session_at_index (I, S); \ - if (PREDICT_FALSE (rv)) \ - { \ - clib_spinlock_unlock (&vcm->sessions_lockp); \ - \ - if (VPPCOM_DEBUG > 0) \ - clib_warning ("[%s] ERROR: Invalid ##I (%u)!", \ - getpid (), I); \ - \ - goto done; \ - } \ -} while (0) - int vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, int maxevents, double wait_for_time) { - session_t *vep_session; + vcl_session_t *vep_session; int rv; f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time; u32 keep_trying = 1; @@ -3138,32 +1871,29 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, if (PREDICT_FALSE (maxevents <= 0)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: Invalid maxevents (%d)!", - getpid (), maxevents); + clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!", + getpid (), maxevents); return VPPCOM_EINVAL; } memset (events, 0, sizeof (*events) * maxevents); - VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session); + VCL_SESSION_LOCK_AND_GET (vep_idx, &vep_session); vep_next_sid = vep_session->vep.next_sid; is_vep = vep_session->is_vep; wait_cont_idx = vep_session->wait_cont_idx; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); if (PREDICT_FALSE (!is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!", + getpid (), vep_idx); rv = VPPCOM_EINVAL; goto done; } if (PREDICT_FALSE (vep_next_sid == ~0)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] WARNING: vep_idx (%u) is empty!", - getpid (), vep_idx); + VDBG (1, "VCL<%d>: WARNING: vep_idx (%u) is empty!", + getpid (), vep_idx); goto done; } @@ -3171,7 +1901,7 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, { u32 sid; u32 next_sid = ~0; - session_t *session; + vcl_session_t *session; for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx; sid != ~0; sid = next_sid) @@ -3181,7 +1911,7 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, int ready; u64 session_ev_data; - VCL_LOCK_AND_GET_SESSION (sid, &session); + VCL_SESSION_LOCK_AND_GET (sid, &session); next_sid = session->vep.next_sid; session_events = session->vep.ev.events; et_mask = session->vep.et_mask; @@ -3189,45 +1919,45 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, is_vep_session = session->is_vep_session; session_vep_idx = session->vep.vep_idx; session_ev_data = session->vep.ev.data.u64; - clib_spinlock_unlock (&vcm->sessions_lockp); + + VCL_SESSION_UNLOCK (); if (PREDICT_FALSE (is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: sid (%u) is a vep!", - getpid (), vep_idx); + VDBG (0, "VCL<%d>: ERROR: sid (%u) is a vep!", + getpid (), vep_idx); rv = VPPCOM_EINVAL; goto done; } if (PREDICT_FALSE (!is_vep_session)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: session (%u) is not " - "a vep session!", getpid (), sid); + VDBG (0, "VCL<%d>: ERROR: session (%u) is not " + "a vep session!", getpid (), sid); rv = VPPCOM_EINVAL; goto done; } if (PREDICT_FALSE (session_vep_idx != vep_idx)) { - clib_warning ("[%d] ERROR: session (%u) " + clib_warning ("VCL<%d>: ERROR: session (%u) " "vep_idx (%u) != vep_idx (%u)!", - getpid (), sid, session->vep.vep_idx, vep_idx); + getpid (), sid, session_vep_idx, vep_idx); rv = VPPCOM_EINVAL; goto done; } add_event = clear_et_mask = 0; - if ((EPOLLIN & session_events) && (EPOLLIN & et_mask)) + if (EPOLLIN & session_events) { - VCL_LOCK_AND_GET_SESSION (sid, &session); + VCL_SESSION_LOCK_AND_GET (sid, &session); ready = vppcom_session_read_ready (session, sid); - clib_spinlock_unlock (&vcm->sessions_lockp); - if (ready > 0) + VCL_SESSION_UNLOCK (); + if ((ready > 0) && (EPOLLIN & et_mask)) { add_event = 1; events[num_ev].events |= EPOLLIN; - if (EPOLLET & session_events) + if (((EPOLLET | EPOLLIN) & session_events) == + (EPOLLET | EPOLLIN)) clear_et_mask |= EPOLLIN; } else if (ready < 0) @@ -3246,16 +1976,17 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, } } - if ((EPOLLOUT & session_events) && (EPOLLOUT & et_mask)) + if (EPOLLOUT & session_events) { - VCL_LOCK_AND_GET_SESSION (sid, &session); + VCL_SESSION_LOCK_AND_GET (sid, &session); ready = vppcom_session_write_ready (session, sid); - clib_spinlock_unlock (&vcm->sessions_lockp); - if (ready > 0) + VCL_SESSION_UNLOCK (); + if ((ready > 0) && (EPOLLOUT & et_mask)) { add_event = 1; events[num_ev].events |= EPOLLOUT; - if (EPOLLET & session_events) + if (((EPOLLET | EPOLLOUT) & session_events) == + (EPOLLET | EPOLLOUT)) clear_et_mask |= EPOLLOUT; } else if (ready < 0) @@ -3279,16 +2010,16 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, events[num_ev].data.u64 = session_ev_data; if (EPOLLONESHOT & session_events) { - VCL_LOCK_AND_GET_SESSION (sid, &session); + VCL_SESSION_LOCK_AND_GET (sid, &session); session->vep.ev.events = 0; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); } num_ev++; if (num_ev == maxevents) { - VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session); + VCL_SESSION_LOCK_AND_GET (vep_idx, &vep_session); vep_session->wait_cont_idx = next_sid; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); goto done; } } @@ -3307,9 +2038,9 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, if (wait_cont_idx != ~0) { - VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session); + VCL_SESSION_LOCK_AND_GET (vep_idx, &vep_session); vep_session->wait_cont_idx = ~0; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); } done: return (rv != VPPCOM_OK) ? rv : num_ev; @@ -3319,117 +2050,523 @@ int vppcom_session_attr (uint32_t session_index, uint32_t op, void *buffer, uint32_t * buflen) { - session_t *session; + vcl_session_t *session; int rv = VPPCOM_OK; u32 *flags = buffer; vppcom_endpt_t *ep = buffer; - VCL_LOCK_AND_GET_SESSION (session_index, &session); + VCL_SESSION_LOCK_AND_GET (session_index, &session); + + ASSERT (session); + switch (op) { case VPPCOM_ATTR_GET_NREAD: rv = vppcom_session_read_ready (session, session_index); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] VPPCOM_ATTR_GET_NREAD: nread = %d", - getpid (), rv); - + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d", + getpid (), rv); break; - case VPPCOM_ATTR_PEEK_NREAD: - /* TBD */ + case VPPCOM_ATTR_GET_NWRITE: + rv = vppcom_session_write_ready (session, session_index); + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d", + getpid (), session_index, rv); break; case VPPCOM_ATTR_GET_FLAGS: - if (buffer && buflen && (*buflen >= sizeof (*flags))) + if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags)))) { - *flags = O_RDWR | ((session->is_nonblocking) ? O_NONBLOCK : 0); + *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_NONBLOCK)); *buflen = sizeof (*flags); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] VPPCOM_ATTR_GET_FLAGS: flags = 0x%08x, " - "is_nonblocking = %u", getpid (), *flags, - session->is_nonblocking); + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, " + "is_nonblocking = %u", getpid (), + session_index, *flags, + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)); } else rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_FLAGS: - if (buffer && buflen && (*buflen >= sizeof (*flags))) + if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags)))) { - session->is_nonblocking = (*flags & O_NONBLOCK) ? 1 : 0; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] VPPCOM_ATTR_SET_FLAGS: flags = 0x%08x, " - "is_nonblocking = %u", getpid (), *flags, - session->is_nonblocking); + if (*flags & O_NONBLOCK) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x," + " is_nonblocking = %u", + getpid (), session_index, *flags, + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)); } else rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_GET_PEER_ADDR: - if (buffer && buflen && (*buflen >= sizeof (*ep))) + if (PREDICT_TRUE (buffer && buflen && + (*buflen >= sizeof (*ep)) && ep->ip)) { - ep->vrf = session->vrf; - ep->is_ip4 = session->peer_addr.is_ip4; - ep->port = session->peer_port; - if (session->peer_addr.is_ip4) - clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4, + ep->is_ip4 = session->transport.is_ip4; + ep->port = session->transport.rmt_port; + if (session->transport.is_ip4) + clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4, sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6, + clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6, sizeof (ip6_address_t)); *buflen = sizeof (*ep); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] VPPCOM_ATTR_GET_PEER_ADDR: sid %u is_ip4 = " - "%u, addr = %U, port %u", getpid (), - session_index, ep->is_ip4, format_ip46_address, - &session->peer_addr.ip46, ep->is_ip4, - clib_net_to_host_u16 (ep->port)); + VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, " + "addr = %U, port %u", getpid (), + session_index, ep->is_ip4, format_ip46_address, + &session->transport.rmt_ip, + ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (ep->port)); } else rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_GET_LCL_ADDR: - if (buffer && buflen && (*buflen >= sizeof (*ep))) + if (PREDICT_TRUE (buffer && buflen && + (*buflen >= sizeof (*ep)) && ep->ip)) { - ep->vrf = session->vrf; - ep->is_ip4 = session->lcl_addr.is_ip4; - ep->port = session->lcl_port; - if (session->lcl_addr.is_ip4) - clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip4, + ep->is_ip4 = session->transport.is_ip4; + ep->port = session->transport.lcl_port; + if (session->transport.is_ip4) + clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4, sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip6, + clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6, sizeof (ip6_address_t)); *buflen = sizeof (*ep); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] VPPCOM_ATTR_GET_LCL_ADDR: sid %u is_ip4 = " - "%u, addr = %U port %d", getpid (), - session_index, ep->is_ip4, format_ip46_address, - &session->lcl_addr.ip46, ep->is_ip4, - clib_net_to_host_u16 (ep->port)); + VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u," + " addr = %U port %d", getpid (), + session_index, ep->is_ip4, format_ip46_address, + &session->transport.lcl_ip, + ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (ep->port)); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_LIBC_EPFD: + rv = session->libc_epfd; + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", + getpid (), rv); + break; + + case VPPCOM_ATTR_SET_LIBC_EPFD: + if (PREDICT_TRUE (buffer && buflen && + (*buflen == sizeof (session->libc_epfd)))) + { + session->libc_epfd = *(int *) buffer; + *buflen = sizeof (session->libc_epfd); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, " + "buflen %d", getpid (), session->libc_epfd, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_PROTOCOL: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + *(int *) buffer = session->session_type; + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d", + getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", + *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_LISTEN: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_LISTEN); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", + getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_ERROR: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + *(int *) buffer = 0; + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#", + getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_TX_FIFO_LEN: + if (buffer && buflen && (*buflen >= sizeof (u32))) + { + + /* VPP-TBD */ + *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size : + session->tx_fifo ? session->tx_fifo->nitems : + vcm->cfg.tx_fifo_size); + *buflen = sizeof (u32); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), " + "buflen %d, #VPP-TBD#", getpid (), + *(size_t *) buffer, *(size_t *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_SET_TX_FIFO_LEN: + if (buffer && buflen && (*buflen == sizeof (u32))) + { + /* VPP-TBD */ + session->sndbuf_size = *(u32 *) buffer; + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), " + "buflen %d, #VPP-TBD#", getpid (), + session->sndbuf_size, session->sndbuf_size, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_RX_FIFO_LEN: + if (buffer && buflen && (*buflen >= sizeof (u32))) + { + + /* VPP-TBD */ + *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size : + session->rx_fifo ? session->rx_fifo->nitems : + vcm->cfg.rx_fifo_size); + *buflen = sizeof (u32); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), " + "buflen %d, #VPP-TBD#", getpid (), + *(size_t *) buffer, *(size_t *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_SET_RX_FIFO_LEN: + if (buffer && buflen && (*buflen == sizeof (u32))) + { + /* VPP-TBD */ + session->rcvbuf_size = *(u32 *) buffer; + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), " + "buflen %d, #VPP-TBD#", getpid (), + session->sndbuf_size, session->sndbuf_size, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_REUSEADDR: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_REUSEADDR); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, " + "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_REUSEADDR: + if (buffer && buflen && (*buflen == sizeof (int)) && + !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN)) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d," + " #VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_REUSEADDR), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_REUSEPORT: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_REUSEPORT); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d," + " #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_SET_REUSEPORT: + if (buffer && buflen && (*buflen == sizeof (int)) && + !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN)) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d," + " #VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_REUSEPORT), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_BROADCAST: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_BROADCAST); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d," + " #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_BROADCAST: + if (buffer && buflen && (*buflen == sizeof (int))) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, " + "#VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_BROADCAST), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_V6ONLY: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_V6ONLY); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, " + "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_V6ONLY: + if (buffer && buflen && (*buflen == sizeof (int))) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, " + "#VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_V6ONLY), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_KEEPALIVE: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_KEEPALIVE); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, " + "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_KEEPALIVE: + if (buffer && buflen && (*buflen == sizeof (int))) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, " + "#VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_KEEPALIVE), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_TCP_NODELAY: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_TCP_NODELAY); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, " + "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_SET_TCP_NODELAY: + if (buffer && buflen && (*buflen == sizeof (int))) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, " + "#VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_TCP_NODELAY), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_TCP_KEEPIDLE: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_TCP_KEEPIDLE); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, " + "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_TCP_KEEPIDLE: + if (buffer && buflen && (*buflen == sizeof (int))) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, " + "#VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_TCP_KEEPINTVL: + if (buffer && buflen && (*buflen >= sizeof (int))) + { + /* VPP-TBD */ + *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_TCP_KEEPINTVL); + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, " + "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; break; case VPPCOM_ATTR_SET_TCP_KEEPINTVL: + if (buffer && buflen && (*buflen == sizeof (int))) + { + /* VPP-TBD */ + if (*(int *) buffer) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL); + else + VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, " + "#VPP-TBD#", getpid (), + VCL_SESS_ATTR_TEST (session->attr, + VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_GET_TCP_USER_MSS: + if (buffer && buflen && (*buflen >= sizeof (u32))) + { + /* VPP-TBD */ + *(u32 *) buffer = session->user_mss; + *buflen = sizeof (int); + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d," + " #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_SET_TCP_USER_MSS: + if (buffer && buflen && (*buflen == sizeof (u32))) + { + /* VPP-TBD */ + session->user_mss = *(u32 *) buffer; + + VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, " + "#VPP-TBD#", getpid (), session->user_mss, *buflen); + } + else + rv = VPPCOM_EINVAL; break; default: @@ -3438,7 +2575,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, } done: - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); return rv; } @@ -3447,32 +2584,30 @@ vppcom_session_recvfrom (uint32_t session_index, void *buffer, uint32_t buflen, int flags, vppcom_endpt_t * ep) { int rv = VPPCOM_OK; - session_t *session = 0; + vcl_session_t *session = 0; if (ep) { - clib_spinlock_lock (&vcm->sessions_lockp); + VCL_SESSION_LOCK (); rv = vppcom_session_at_index (session_index, &session); if (PREDICT_FALSE (rv)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); + VCL_SESSION_UNLOCK (); + VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!", + getpid (), session_index); rv = VPPCOM_EBADFD; - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); goto done; } - ep->vrf = session->vrf; - ep->is_ip4 = session->peer_addr.is_ip4; - ep->port = session->peer_port; - if (session->peer_addr.is_ip4) - clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4, + ep->is_ip4 = session->transport.is_ip4; + ep->port = session->transport.rmt_port; + if (session->transport.is_ip4) + clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4, sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6, + clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6, sizeof (ip6_address_t)); - clib_spinlock_unlock (&vcm->sessions_lockp); + VCL_SESSION_UNLOCK (); } if (flags == 0) @@ -3481,7 +2616,8 @@ vppcom_session_recvfrom (uint32_t session_index, void *buffer, rv = vppcom_session_peek (session_index, buffer, buflen); else { - clib_warning ("[%d] Unsupport flags for recvfrom %d", getpid (), flags); + clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d", + getpid (), flags); rv = VPPCOM_EAFNOSUPPORT; } @@ -3505,14 +2641,117 @@ vppcom_session_sendto (uint32_t session_index, void *buffer, if (flags) { // TBD check the flags and do the right thing - if (VPPCOM_DEBUG > 2) - clib_warning ("[%d] handling flags 0x%u (%d) not implemented yet.", - getpid (), flags, flags); + VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.", + getpid (), flags, flags); } return (vppcom_session_write (session_index, buffer, buflen)); } +int +vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) +{ + f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time; + u32 i, keep_trying = 1; + int rv, num_ev = 0; + + VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f", + getpid (), vp, n_sids, wait_for_time); + + if (!vp) + return VPPCOM_EFAULT; + + do + { + vcl_session_t *session; + + for (i = 0; i < n_sids; i++) + { + ASSERT (vp[i].revents); + + VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session); + VCL_SESSION_UNLOCK (); + + if (*vp[i].revents) + *vp[i].revents = 0; + + if (POLLIN & vp[i].events) + { + VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session); + rv = vppcom_session_read_ready (session, vp[i].sid); + VCL_SESSION_UNLOCK (); + if (rv > 0) + { + *vp[i].revents |= POLLIN; + num_ev++; + } + else if (rv < 0) + { + switch (rv) + { + case VPPCOM_ECONNRESET: + *vp[i].revents = POLLHUP; + break; + + default: + *vp[i].revents = POLLERR; + break; + } + num_ev++; + } + } + + if (POLLOUT & vp[i].events) + { + VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session); + rv = vppcom_session_write_ready (session, vp[i].sid); + VCL_SESSION_UNLOCK (); + if (rv > 0) + { + *vp[i].revents |= POLLOUT; + num_ev++; + } + else if (rv < 0) + { + switch (rv) + { + case VPPCOM_ECONNRESET: + *vp[i].revents = POLLHUP; + break; + + default: + *vp[i].revents = POLLERR; + break; + } + num_ev++; + } + } + + if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET() + { + done: + *vp[i].revents = POLLNVAL; + num_ev++; + } + } + if (wait_for_time != -1) + keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0; + } + while ((num_ev == 0) && keep_trying); + + if (VPPCOM_DEBUG > 3) + { + clib_warning ("VCL<%d>: returning %d", getpid (), num_ev); + for (i = 0; i < n_sids; i++) + { + clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, " + ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid, + vp[i].events, *vp[i].revents); + } + } + return num_ev; +} + /* * fd.io coding-style-patch-verification: ON *