* @file
* @brief Local TCP/IP stack punt infrastructure.
*
- * Provides a set of VPP nodes togather with the relevant APIs and CLI
+ * Provides a set of VPP nodes together with the relevant APIs and CLI
* commands in order to adjust and dispatch packets from the VPP data plane
* to the local TCP/IP stack
*/
+
+#include <vnet/ip/ip.h>
#include <vlib/vlib.h>
#include <vnet/pg/pg.h>
-#include <vnet/ip/udp.h>
+#include <vnet/udp/udp.h>
+#include <vnet/tcp/tcp.h>
#include <vnet/ip/punt.h>
+#include <vlib/unix/unix.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <stdlib.h>
-#define foreach_punt_next \
- _ (PUNT, "error-punt")
+punt_main_t punt_main;
-typedef enum
+char *
+vnet_punt_get_server_pathname (void)
{
-#define _(s,n) PUNT_NEXT_##s,
- foreach_punt_next
-#undef _
- PUNT_N_NEXT,
-} punt_next_t;
-
-vlib_node_registration_t udp4_punt_node;
-vlib_node_registration_t udp6_punt_node;
-
-/** @brief IPv4/IPv6 UDP punt node main loop.
-
- This is the main loop inline function for IPv4/IPv6 UDP punt
- transition node.
-
- @param vm vlib_main_t corresponding to the current thread
- @param node vlib_node_runtime_t
- @param frame vlib_frame_t whose contents should be dispatched
- @param is_ipv4 indicates if called for IPv4 or IPv6 node
-*/
-always_inline uword
-udp46_punt_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame, int is_ip4)
+ punt_main_t *pm = &punt_main;
+ return pm->sun_path;
+}
+
+static void
+punt_client_l4_db_add (ip_address_family_t af, u16 port, u32 index)
{
- u32 n_left_from, *from, *to_next;
- word advance;
+ punt_main_t *pm = &punt_main;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
+ pm->db.clients_by_l4_port = hash_set (pm->db.clients_by_l4_port,
+ punt_client_l4_mk_key (af, port),
+ index);
+}
- /* udp[46]_lookup hands us the data payload, not the IP header */
- if (is_ip4)
- advance = -(sizeof (ip4_header_t) + sizeof (udp_header_t));
- else
- advance = -(sizeof (ip6_header_t) + sizeof (udp_header_t));
+static u32
+punt_client_l4_db_remove (ip_address_family_t af, u16 port)
+{
+ punt_main_t *pm = &punt_main;
+ u32 key, index = ~0;
+ uword *p;
+
+ key = punt_client_l4_mk_key (af, port);
+ p = hash_get (pm->db.clients_by_l4_port, key);
+
+ if (p)
+ index = p[0];
- while (n_left_from > 0)
+ hash_unset (pm->db.clients_by_l4_port, key);
+
+ return (index);
+}
+
+static void
+punt_client_ip_proto_db_add (ip_address_family_t af,
+ ip_protocol_t proto, u32 index)
+{
+ punt_main_t *pm = &punt_main;
+
+ pm->db.clients_by_ip_proto = hash_set (pm->db.clients_by_ip_proto,
+ punt_client_ip_proto_mk_key (af,
+ proto),
+ index);
+}
+
+static u32
+punt_client_ip_proto_db_remove (ip_address_family_t af, ip_protocol_t proto)
+{
+ punt_main_t *pm = &punt_main;
+ u32 key, index = ~0;
+ uword *p;
+
+ key = punt_client_ip_proto_mk_key (af, proto);
+ p = hash_get (pm->db.clients_by_ip_proto, key);
+
+ if (p)
+ index = p[0];
+
+ hash_unset (pm->db.clients_by_ip_proto, key);
+
+ return (index);
+}
+
+static void
+punt_client_exception_db_add (vlib_punt_reason_t reason, u32 pci)
+{
+ punt_main_t *pm = &punt_main;
+
+ vec_validate_init_empty (pm->db.clients_by_exception, reason, ~0);
+
+ pm->db.clients_by_exception[reason] = pci;
+}
+
+static u32
+punt_client_exception_db_remove (vlib_punt_reason_t reason)
+{
+ punt_main_t *pm = &punt_main;
+ u32 pci = ~0;
+
+ if (punt_client_exception_get (reason))
{
- u32 n_left_to_next;
+ pci = pm->db.clients_by_exception[reason];
+ pm->db.clients_by_exception[reason] = ~0;
+ }
- vlib_get_next_frame (vm, node, PUNT_NEXT_PUNT, to_next, n_left_to_next);
+ return pci;
+}
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t *b0;
-
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- vlib_buffer_advance (b0, advance);
- b0->error = node->errors[PUNT_ERROR_UDP_PORT];
- }
+static clib_error_t *
+punt_socket_read_ready (clib_file_t * uf)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ punt_main_t *pm = &punt_main;
+
+ /** Schedule the rx node */
+ vlib_node_set_interrupt_pending (vm, punt_socket_rx_node.index);
+ vec_add1 (pm->ready_fds, uf->file_descriptor);
+
+ return 0;
+}
+
+static clib_error_t *
+punt_socket_register_l4 (vlib_main_t * vm,
+ ip_address_family_t af,
+ u8 protocol, u16 port, char *client_pathname)
+{
+ punt_main_t *pm = &punt_main;
+ punt_client_t *c;
+
+ /* For now we only support UDP punt */
+ if (protocol != IP_PROTOCOL_UDP)
+ return clib_error_return (0,
+ "only UDP protocol (%d) is supported, got %d",
+ IP_PROTOCOL_UDP, protocol);
- vlib_put_next_frame (vm, node, PUNT_NEXT_PUNT, n_left_to_next);
+ if (port == (u16) ~ 0)
+ return clib_error_return (0, "UDP port number required");
+
+ c = punt_client_l4_get (af, port);
+
+ if (NULL == c)
+ {
+ pool_get_zero (pm->punt_client_pool, c);
+ punt_client_l4_db_add (af, port, c - pm->punt_client_pool);
}
- return from_frame->n_vectors;
+ memcpy (c->caddr.sun_path, client_pathname, sizeof (c->caddr.sun_path));
+ c->caddr.sun_family = AF_UNIX;
+ c->reg.type = PUNT_TYPE_L4;
+ c->reg.punt.l4.port = port;
+ c->reg.punt.l4.protocol = protocol;
+ c->reg.punt.l4.af = af;
+
+ u32 node_index = (af == AF_IP4 ?
+ udp4_punt_socket_node.index :
+ udp6_punt_socket_node.index);
+
+ udp_register_dst_port (vm, port, node_index, af == AF_IP4);
+
+ return (NULL);
}
-static char *punt_error_strings[] = {
-#define punt_error(n,s) s,
-#include "punt_error.def"
-#undef punt_error
-};
+static clib_error_t *
+punt_socket_register_ip_proto (vlib_main_t * vm,
+ ip_address_family_t af,
+ ip_protocol_t proto, char *client_pathname)
+{
+ punt_main_t *pm = &punt_main;
+ punt_client_t *c;
+
+ c = punt_client_ip_proto_get (af, proto);
+
+ if (NULL == c)
+ {
+ pool_get_zero (pm->punt_client_pool, c);
+ punt_client_ip_proto_db_add (af, proto, c - pm->punt_client_pool);
+ }
+
+ memcpy (c->caddr.sun_path, client_pathname, sizeof (c->caddr.sun_path));
+ c->caddr.sun_family = AF_UNIX;
+ c->reg.type = PUNT_TYPE_IP_PROTO;
+ c->reg.punt.ip_proto.protocol = proto;
+ c->reg.punt.ip_proto.af = af;
+
+ if (af == AF_IP4)
+ ip4_register_protocol (proto, ip4_proto_punt_socket_node.index);
+ else
+ ip6_register_protocol (proto, ip6_proto_punt_socket_node.index);
-/** @brief IPv4 UDP punt node.
- @node ip4-udp-punt
+ return (NULL);
+}
- This is the IPv4 UDP punt transition node. It is registered as a next
- node for the "ip4-udp-lookup" handling UDP port(s) requested for punt.
- The buffer's current data pointer is adjusted to the original packet
- IPv4 header. All buffers are dispatched to "error-punt".
+static clib_error_t *
+punt_socket_register_exception (vlib_main_t * vm,
+ vlib_punt_reason_t reason,
+ char *client_pathname)
+{
+ punt_main_t *pm = &punt_main;
+ punt_client_t *pc;
- @param vm vlib_main_t corresponding to the current thread
- @param node vlib_node_runtime_t
- @param frame vlib_frame_t whose contents should be dispatched
+ pc = punt_client_exception_get (reason);
- @par Graph mechanics: next index usage
+ if (NULL == pc)
+ {
+ pool_get_zero (pm->punt_client_pool, pc);
+ punt_client_exception_db_add (reason, pc - pm->punt_client_pool);
+ }
+
+ memcpy (pc->caddr.sun_path, client_pathname, sizeof (pc->caddr.sun_path));
+ pc->caddr.sun_family = AF_UNIX;
+ pc->reg.type = PUNT_TYPE_EXCEPTION;
+ pc->reg.punt.exception.reason = reason;
- @em Sets:
- - <code>vnet_buffer(b)->current_data</code>
- - <code>vnet_buffer(b)->current_len</code>
+ vlib_punt_register (pm->hdl,
+ pc->reg.punt.exception.reason, "exception-punt-socket");
+
+ return (NULL);
+}
- <em>Next Index:</em>
- - Dispatches the packet to the "error-punt" node
-*/
-static uword
-udp4_punt (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+static clib_error_t *
+punt_socket_unregister_l4 (ip_address_family_t af,
+ ip_protocol_t protocol, u16 port)
{
- return udp46_punt_inline (vm, node, from_frame, 1 /* is_ip4 */ );
+ u32 pci;
+
+ udp_unregister_dst_port (vlib_get_main (), port, af == AF_IP4);
+
+ pci = punt_client_l4_db_remove (af, port);
+
+ if (~0 != pci)
+ pool_put_index (punt_main.punt_client_pool, pci);
+
+ return (NULL);
}
-/** @brief IPv6 UDP punt node.
- @node ip6-udp-punt
+static clib_error_t *
+punt_socket_unregister_ip_proto (ip_address_family_t af, ip_protocol_t proto)
+{
+ u32 pci;
- This is the IPv6 UDP punt transition node. It is registered as a next
- node for the "ip6-udp-lookup" handling UDP port(s) requested for punt.
- The buffer's current data pointer is adjusted to the original packet
- IPv6 header. All buffers are dispatched to "error-punt".
+ if (af == AF_IP4)
+ ip4_unregister_protocol (proto);
+ else
+ ip6_unregister_protocol (proto);
- @param vm vlib_main_t corresponding to the current thread
- @param node vlib_node_runtime_t
- @param frame vlib_frame_t whose contents should be dispatched
+ pci = punt_client_ip_proto_db_remove (af, proto);
- @par Graph mechanics: next index usage
+ if (~0 != pci)
+ pool_put_index (punt_main.punt_client_pool, pci);
- @em Sets:
- - <code>vnet_buffer(b)->current_data</code>
- - <code>vnet_buffer(b)->current_len</code>
+ return (NULL);
+}
- <em>Next Index:</em>
- - Dispatches the packet to the "error-punt" node
-*/
-static uword
-udp6_punt (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+static clib_error_t *
+punt_socket_unregister_exception (vlib_punt_reason_t reason)
{
- return udp46_punt_inline (vm, node, from_frame, 0 /* is_ip4 */ );
+ u32 pci;
+
+ pci = punt_client_exception_db_remove (reason);
+
+ if (~0 != pci)
+ pool_put_index (punt_main.punt_client_pool, pci);
+
+ return (NULL);
}
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (udp4_punt_node) = {
- .function = udp4_punt,
- .name = "ip4-udp-punt",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .n_errors = PUNT_N_ERROR,
- .error_strings = punt_error_strings,
-
- .n_next_nodes = PUNT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [PUNT_NEXT_##s] = n,
- foreach_punt_next
-#undef _
- },
-};
+clib_error_t *
+vnet_punt_socket_add (vlib_main_t * vm, u32 header_version,
+ const punt_reg_t * pr, char *client_pathname)
+{
+ punt_main_t *pm = &punt_main;
-VLIB_NODE_FUNCTION_MULTIARCH (udp4_punt_node, udp4_punt);
+ if (!pm->is_configured)
+ return clib_error_return (0, "socket is not configured");
-VLIB_REGISTER_NODE (udp6_punt_node) = {
- .function = udp6_punt,
- .name = "ip6-udp-punt",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
+ if (header_version != PUNT_PACKETDESC_VERSION)
+ return clib_error_return (0, "Invalid packet descriptor version");
- .n_errors = PUNT_N_ERROR,
- .error_strings = punt_error_strings,
+ if (strncmp (client_pathname, vnet_punt_get_server_pathname (),
+ UNIX_PATH_MAX) == 0)
+ return clib_error_return (0,
+ "Punt socket: Invalid client path: %s",
+ client_pathname);
- .n_next_nodes = PUNT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [PUNT_NEXT_##s] = n,
- foreach_punt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
+ /* Register client */
+ switch (pr->type)
+ {
+ case PUNT_TYPE_L4:
+ return (punt_socket_register_l4 (vm,
+ pr->punt.l4.af,
+ pr->punt.l4.protocol,
+ pr->punt.l4.port, client_pathname));
+ case PUNT_TYPE_IP_PROTO:
+ return (punt_socket_register_ip_proto (vm,
+ pr->punt.ip_proto.af,
+ pr->punt.ip_proto.protocol,
+ client_pathname));
+ case PUNT_TYPE_EXCEPTION:
+ return (punt_socket_register_exception (vm,
+ pr->punt.exception.reason,
+ client_pathname));
+ }
-VLIB_NODE_FUNCTION_MULTIARCH (udp6_punt_node, udp6_punt);;
+ return 0;
+}
+
+clib_error_t *
+vnet_punt_socket_del (vlib_main_t * vm, const punt_reg_t * pr)
+{
+ punt_main_t *pm = &punt_main;
+
+ if (!pm->is_configured)
+ return clib_error_return (0, "socket is not configured");
+
+ switch (pr->type)
+ {
+ case PUNT_TYPE_L4:
+ return (punt_socket_unregister_l4 (pr->punt.l4.af,
+ pr->punt.l4.protocol,
+ pr->punt.l4.port));
+ case PUNT_TYPE_IP_PROTO:
+ return (punt_socket_unregister_ip_proto (pr->punt.ip_proto.af,
+ pr->punt.ip_proto.protocol));
+ case PUNT_TYPE_EXCEPTION:
+ return (punt_socket_unregister_exception (pr->punt.exception.reason));
+ }
+
+ return 0;
+}
/**
* @brief Request IP traffic punt to the local TCP/IP stack.
*
* @em Note
- * - UDP is the only protocol supported in the current implementation
- * - When requesting UDP punt port number(s) must be specified
- * - All TCP traffic is currently punted to the host by default
+ * - UDP and TCP are the only protocols supported in the current implementation
*
* @param vm vlib_main_t corresponding to the current thread
- * @param ipv IP protcol version.
- * 4 - IPv4, 6 - IPv6, ~0 for both IPv6 and IPv4
+ * @param af IP address family.
* @param protocol 8-bits L4 protocol value
- * Only value of 17 (UDP) is currently supported
- * @param port 16-bits L4 (TCP/IP) port number when applicable
+ * UDP is 17
+ * TCP is 1
+ * @param port 16-bits L4 (TCP/IP) port number when applicable (UDP only)
*
* @returns 0 on success, non-zero value otherwise
*/
-clib_error_t *
-vnet_punt_add_del (vlib_main_t * vm, u8 ipv, u8 protocol, u16 port,
- int is_add)
+static clib_error_t *
+punt_l4_add_del (vlib_main_t * vm,
+ ip_address_family_t af,
+ ip_protocol_t protocol, u16 port, bool is_add)
{
- /* For now we only support UDP punt */
- if (protocol != IP_PROTOCOL_UDP)
+ /* For now we only support TCP and UDP punt */
+ if (protocol != IP_PROTOCOL_UDP && protocol != IP_PROTOCOL_TCP)
return clib_error_return (0,
- "only UDP protocol (%d) is supported, got %d",
- IP_PROTOCOL_UDP, protocol);
-
- if (ipv != (u8) ~ 0 && ipv != 4 && ipv != 6)
- return clib_error_return (0, "IP version must be 4 or 6, got %d", ipv);
+ "only UDP (%d) and TCP (%d) protocols are supported, got %d",
+ IP_PROTOCOL_UDP, IP_PROTOCOL_TCP, protocol);
if (port == (u16) ~ 0)
{
- if (ipv == 4 || ipv == (u8) ~ 0)
- udp_punt_unknown (vm, 1, is_add);
-
- if (ipv == 6 || ipv == (u8) ~ 0)
- udp_punt_unknown (vm, 0, is_add);
+ if (protocol == IP_PROTOCOL_UDP)
+ udp_punt_unknown (vm, af == AF_IP4, is_add);
+ else if (protocol == IP_PROTOCOL_TCP)
+ tcp_punt_unknown (vm, af == AF_IP4, is_add);
return 0;
}
else if (is_add)
{
- if (ipv == 4 || ipv == (u8) ~ 0)
- udp_register_dst_port (vm, port, udp4_punt_node.index, 1);
+ if (protocol == IP_PROTOCOL_TCP)
+ return clib_error_return (0, "punt TCP ports is not supported yet");
- if (ipv == 6 || ipv == (u8) ~ 0)
- udp_register_dst_port (vm, port, udp6_punt_node.index, 0);
+ udp_register_dst_port (vm, port, udp4_punt_node.index, af == AF_IP4);
return 0;
}
-
else
- return clib_error_return (0, "punt delete is not supported yet");
+ {
+ if (protocol == IP_PROTOCOL_TCP)
+ return clib_error_return (0, "punt TCP ports is not supported yet");
+
+ udp_unregister_dst_port (vm, port, af == AF_IP4);
+
+ return 0;
+ }
+}
+
+clib_error_t *
+vnet_punt_add_del (vlib_main_t * vm, const punt_reg_t * pr, bool is_add)
+{
+ switch (pr->type)
+ {
+ case PUNT_TYPE_L4:
+ return (punt_l4_add_del (vm, pr->punt.l4.af, pr->punt.l4.protocol,
+ pr->punt.l4.port, is_add));
+ case PUNT_TYPE_EXCEPTION:
+ case PUNT_TYPE_IP_PROTO:
+ break;
+ }
+
+ return (clib_error_return (0, "Unsupported punt type: %d", pr->type));
}
static clib_error_t *
-udp_punt_cli (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
+punt_cli (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- u32 udp_port;
- int is_add = 1;
- clib_error_t *error;
+ clib_error_t *error = NULL;
+ bool is_add = true;
+ /* *INDENT-OFF* */
+ punt_reg_t pr = {
+ .punt = {
+ .l4 = {
+ .af = AF_IP4,
+ .port = ~0,
+ .protocol = ~0,
+ },
+ },
+ .type = PUNT_TYPE_L4,
+ };
+ u32 port;
+ /* *INDENT-ON* */
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "del"))
- is_add = 0;
- if (unformat (input, "all"))
- {
- /* punt both IPv6 and IPv4 when used in CLI */
- error = vnet_punt_add_del (vm, ~0, IP_PROTOCOL_UDP, ~0, is_add);
- if (error)
- clib_error_report (error);
- }
- else if (unformat (input, "%d", &udp_port))
+ is_add = false;
+ else if (unformat (input, "ipv6"))
+ pr.punt.l4.af = AF_IP6;
+ else if (unformat (input, "ip6"))
+ pr.punt.l4.af = AF_IP6;
+ else if (unformat (input, "%d", &port))
+ pr.punt.l4.port = port;
+ else if (unformat (input, "udp"))
+ pr.punt.l4.protocol = IP_PROTOCOL_UDP;
+ else if (unformat (input, "tcp"))
+ pr.punt.l4.protocol = IP_PROTOCOL_TCP;
+ else
{
- /* punt both IPv6 and IPv4 when used in CLI */
- error = vnet_punt_add_del (vm, ~0, IP_PROTOCOL_UDP,
- udp_port, is_add);
- if (error)
- clib_error_report (error);
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, input);
+ goto done;
}
}
- return 0;
+ /* punt both IPv6 and IPv4 when used in CLI */
+ error = vnet_punt_add_del (vm, &pr, is_add);
+ if (error)
+ {
+ clib_error_report (error);
+ }
+
+done:
+ return error;
}
/*?
* @endparblock
?*/
/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (punt_udp_command, static) = {
- .path = "set punt udp",
- .short_help = "set punt
udp [del] <all | port-num1 [port-num2 ...]>",
- .function = udp_punt_cli,
+VLIB_CLI_COMMAND (punt_command, static) = {
+ .path = "set punt",
+ .short_help = "set punt
[udp|tcp] [del] <all | port-num1 [port-num2 ...]>",
+ .function = punt_cli,
};
/* *INDENT-ON* */
+static clib_error_t *
+punt_socket_register_cmd (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u8 *socket_name = 0;
+ clib_error_t *error = NULL;
+ /* *INDENT-OFF* */
+ punt_reg_t pr = {
+ .punt = {
+ .l4 = {
+ .af = AF_IP4,
+ .port = ~0,
+ .protocol = ~0,
+ },
+ },
+ .type = PUNT_TYPE_L4,
+ };
+ /* *INDENT-ON* */
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "ipv4"))
+ ;
+ else if (unformat (input, "ipv6"))
+ pr.punt.l4.af = AF_IP6;
+ else if (unformat (input, "udp"))
+ pr.punt.l4.protocol = IP_PROTOCOL_UDP;
+ else if (unformat (input, "tcp"))
+ pr.punt.l4.protocol = IP_PROTOCOL_TCP;
+ else if (unformat (input, "%d", &pr.punt.l4.port))
+ ;
+ else if (unformat (input, "socket %s", &socket_name))
+ ;
+ else
+ {
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+ }
+
+ if (!socket_name)
+ error = clib_error_return (0, "socket name not specified");
+ else
+ error = vnet_punt_socket_add (vm, 1, &pr, (char *) socket_name);
+
+done:
+ return error;
+}
+
+/*?
+ *
+ * @cliexpar
+ * @cliexcmd{punt socket register}
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (punt_socket_register_command, static) =
+{
+ .path = "punt socket register",
+ .function = punt_socket_register_cmd,
+ .short_help = "punt socket register [ipv4|ipv6] [udp|tcp]> <all | port-num1 [port-num2 ...]> <socket>",
+ .is_mp_safe = 1,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+punt_socket_deregister_cmd (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ clib_error_t *error = NULL;
+ /* *INDENT-OFF* */
+ punt_reg_t pr = {
+ .punt = {
+ .l4 = {
+ .af = AF_IP4,
+ .port = ~0,
+ .protocol = ~0,
+ },
+ },
+ .type = PUNT_TYPE_L4,
+ };
+ /* *INDENT-ON* */
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "ipv4"))
+ ;
+ else if (unformat (input, "ipv6"))
+ pr.punt.l4.af = AF_IP6;
+ else if (unformat (input, "udp"))
+ pr.punt.l4.protocol = IP_PROTOCOL_UDP;
+ else if (unformat (input, "tcp"))
+ pr.punt.l4.protocol = IP_PROTOCOL_TCP;
+ else if (unformat (input, "%d", &pr.punt.l4.port))
+ ;
+ else
+ {
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+ }
+
+ error = vnet_punt_socket_del (vm, &pr);
+done:
+ return error;
+}
+
+/*?
+ *
+ * @cliexpar
+ * @cliexcmd{punt socket register}
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (punt_socket_deregister_command, static) =
+{
+ .path = "punt socket deregister",
+ .function = punt_socket_deregister_cmd,
+ .short_help = "punt socket deregister [ipv4|ipv6] [udp|tcp]> <all | port-num1 [port-num2 ...]>",
+ .is_mp_safe = 1,
+};
+/* *INDENT-ON* */
+
+void
+punt_client_walk (punt_type_t pt, punt_client_walk_cb_t cb, void *ctx)
+{
+ punt_main_t *pm = &punt_main;
+
+ switch (pt)
+ {
+ case PUNT_TYPE_L4:
+ {
+ u32 pci, key;
+
+ /* *INDENT-OFF* */
+ hash_foreach(key, pci, pm->db.clients_by_l4_port,
+ ({
+ cb (pool_elt_at_index(pm->punt_client_pool, pci), ctx);
+ }));
+ /* *INDENT-ON* */
+ break;
+ }
+ case PUNT_TYPE_IP_PROTO:
+ {
+ u32 pci, key;
+
+ /* *INDENT-OFF* */
+ hash_foreach(key, pci, pm->db.clients_by_ip_proto,
+ ({
+ cb (pool_elt_at_index(pm->punt_client_pool, pci), ctx);
+ }));
+ /* *INDENT-ON* */
+ break;
+ }
+ case PUNT_TYPE_EXCEPTION:
+ {
+ u32 *pci;
+
+ vec_foreach (pci, pm->db.clients_by_exception)
+ {
+ if (~0 != *pci)
+ cb (pool_elt_at_index (pm->punt_client_pool, *pci), ctx);
+ }
+
+ break;
+ }
+ }
+}
+
+static u8 *
+format_punt_client (u8 * s, va_list * args)
+{
+ punt_client_t *pc = va_arg (*args, punt_client_t *);
+
+ s = format (s, " punt ");
+
+ switch (pc->reg.type)
+ {
+ case PUNT_TYPE_L4:
+ s = format (s, "%U %U port %d",
+ format_ip_address_family, pc->reg.punt.l4.af,
+ format_ip_protocol, pc->reg.punt.l4.protocol,
+ pc->reg.punt.l4.port);
+ break;
+ case PUNT_TYPE_IP_PROTO:
+ s = format (s, "%U %U",
+ format_ip_address_family, pc->reg.punt.ip_proto.af,
+ format_ip_protocol, pc->reg.punt.ip_proto.protocol);
+ break;
+ case PUNT_TYPE_EXCEPTION:
+ s = format (s, " %U", format_vlib_punt_reason,
+ pc->reg.punt.exception.reason);
+ break;
+ }
+
+ s = format (s, " to socket %s \n", pc->caddr.sun_path);
+
+ return (s);
+}
+
+static walk_rc_t
+punt_client_show_one (const punt_client_t * pc, void *ctx)
+{
+ vlib_cli_output (ctx, "%U", format_punt_client, pc);
+
+ return (WALK_CONTINUE);
+}
+
+static clib_error_t *
+punt_socket_show_cmd (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ clib_error_t *error = NULL;
+ punt_type_t pt;
+
+ pt = PUNT_TYPE_L4;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "exception"))
+ pt = PUNT_TYPE_EXCEPTION;
+ else if (unformat (input, "l4"))
+ pt = PUNT_TYPE_L4;
+ else if (unformat (input, "ip"))
+ pt = PUNT_TYPE_IP_PROTO;
+ else
+ {
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+ }
+
+ punt_client_walk (pt, punt_client_show_one, vm);
+
+done:
+ return (error);
+}
+
+/*?
+ *
+ * @cliexpar
+ * @cliexcmd{show punt socket ipv4}
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_punt_socket_registration_command, static) =
+{
+ .path = "show punt socket registrations",
+ .function = punt_socket_show_cmd,
+ .short_help = "show punt socket registrations [l4|exception]",
+ .is_mp_safe = 1,
+};
+/* *INDENT-ON* */
+
+clib_error_t *
+ip_punt_init (vlib_main_t * vm)
+{
+ clib_error_t *error = NULL;
+ punt_main_t *pm = &punt_main;
+
+ pm->is_configured = false;
+ pm->interface_output_node =
+ vlib_get_node_by_name (vm, (u8 *) "interface-output");
+
+ if ((error = vlib_call_init_function (vm, punt_init)))
+ return error;
+
+ pm->hdl = vlib_punt_client_register ("ip-punt");
+
+ return (error);
+}
+
+VLIB_INIT_FUNCTION (ip_punt_init);
+
+static clib_error_t *
+punt_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ punt_main_t *pm = &punt_main;
+ char *socket_path = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "socket %s", &socket_path))
+ strncpy (pm->sun_path, socket_path, UNIX_PATH_MAX - 1);
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+
+ if (socket_path == 0)
+ return 0;
+
+ /* UNIX domain socket */
+ struct sockaddr_un addr;
+ if ((pm->socket_fd = socket (AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0)) == -1)
+ {
+ return clib_error_return (0, "socket error");
+ }
+
+ clib_memset (&addr, 0, sizeof (addr));
+ addr.sun_family = AF_UNIX;
+ if (*socket_path == '\0')
+ {
+ *addr.sun_path = '\0';
+ strncpy (addr.sun_path + 1, socket_path + 1,
+ sizeof (addr.sun_path) - 2);
+ }
+ else
+ {
+ strncpy (addr.sun_path, socket_path, sizeof (addr.sun_path) - 1);
+ unlink (socket_path);
+ }
+
+ if (bind (pm->socket_fd, (struct sockaddr *) &addr, sizeof (addr)) == -1)
+ {
+ return clib_error_return (0, "bind error");
+ }
+
+ int n_bytes = 0x10000;
+
+ if (setsockopt
+ (pm->socket_fd, SOL_SOCKET, SO_SNDBUF, &n_bytes,
+ sizeof (n_bytes)) == -1)
+ {
+ return clib_error_return (0, "setsockopt error");
+ }
+
+ /* Register socket */
+ clib_file_main_t *fm = &file_main;
+ clib_file_t template = { 0 };
+ template.read_function = punt_socket_read_ready;
+ template.file_descriptor = pm->socket_fd;
+ template.description = format (0, "%s", socket_path);
+ pm->clib_file_index = clib_file_add (fm, &template);
+
+ pm->is_configured = true;
+
+ return 0;
+}
+
+VLIB_CONFIG_FUNCTION (punt_config, "punt");
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff