+++ /dev/null
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <pwd.h>
-#include <grp.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-#include <vlibapi/api.h>
-#include <vlibmemory/api.h>
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vnet/api_errno.h>
-
-#include <svmdb.h>
-
-svmdb_client_t *c;
-volatile int signal_received;
-
-static void
-unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc)
-{
- static int once;
-
- if (once)
- exit (1);
-
- once = 1;
- signal_received = 1;
-}
-
-static void
-setup_signal_handlers (void)
-{
- uword i;
- struct sigaction sa;
-
- for (i = 1; i < 32; i++)
- {
- memset (&sa, 0, sizeof (sa));
- sa.sa_sigaction = (void *) unix_signal_handler;
- sa.sa_flags = SA_SIGINFO;
-
- switch (i)
- {
- /* these signals take the default action */
- case SIGABRT:
- case SIGKILL:
- case SIGSTOP:
- case SIGUSR1:
- case SIGUSR2:
- continue;
-
- /* ignore SIGPIPE, SIGCHLD */
- case SIGPIPE:
- case SIGCHLD:
- sa.sa_sigaction = (void *) SIG_IGN;
- break;
-
- /* catch and handle all other signals */
- default:
- break;
- }
-
- if (sigaction (i, &sa, 0) < 0)
- return clib_unix_warning (0, "sigaction %U", format_signal, i);
- }
-}
-
-int
-main (int argc, char **argv)
-{
- unformat_input_t input;
- char *chroot_path = 0;
- u8 *chroot_path_u8;
- int interval = 0;
- f64 *vector_ratep, *rx_ratep, *sig_error_ratep;
- pid_t *vpp_pidp;
- svmdb_map_args_t _ma, *ma = &_ma;
- int uid, gid, rv;
- struct passwd _pw, *pw;
- struct group _grp, *grp;
- char *s, buf[128];
-
- unformat_init_command_line (&input, argv);
-
- uid = geteuid ();
- gid = getegid ();
-
- while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (&input, "chroot %s", &chroot_path_u8))
- {
- chroot_path = (char *) chroot_path_u8;
- }
- else if (unformat (&input, "interval %d", &interval))
- ;
- else if (unformat (&input, "uid %d", &uid))
- ;
- else if (unformat (&input, "gid %d", &gid))
- ;
- else if (unformat (&input, "uid %s", &s))
- {
- /* lookup the username */
- pw = NULL;
- rv = getpwnam_r (s, &_pw, buf, sizeof (buf), &pw);
- if (rv < 0)
- {
- fformat (stderr, "cannot fetch username %s", s);
- exit (1);
- }
- if (pw == NULL)
- {
- fformat (stderr, "username %s does not exist", s);
- exit (1);
- }
- vec_free (s);
- uid = pw->pw_uid;
- }
- else if (unformat (&input, "gid %s", &s))
- {
- /* lookup the group name */
- grp = NULL;
- rv = getgrnam_r (s, &_grp, buf, sizeof (buf), &grp);
- if (rv != 0)
- {
- fformat (stderr, "cannot fetch group %s", s);
- exit (1);
- }
- if (grp == NULL)
- {
- fformat (stderr, "group %s does not exist", s);
- exit (1);
- }
- vec_free (s);
- gid = grp->gr_gid;
- }
- else
- {
- fformat (stderr,
- "usage: vpp_get_metrics [chroot <path>] [interval <nn>]\n");
- exit (1);
- }
- }
-
- setup_signal_handlers ();
-
- memset (ma, 0, sizeof (*ma));
- ma->root_path = chroot_path;
- ma->uid = uid;
- ma->gid = gid;
-
- c = svmdb_map (ma);
-
- vpp_pidp =
- svmdb_local_get_variable_reference (c, SVMDB_NAMESPACE_VEC, "vpp_pid");
- vector_ratep =
- svmdb_local_get_variable_reference (c, SVMDB_NAMESPACE_VEC,
- "vpp_vector_rate");
- rx_ratep =
- svmdb_local_get_variable_reference (c, SVMDB_NAMESPACE_VEC,
- "vpp_input_rate");
- sig_error_ratep =
- svmdb_local_get_variable_reference (c, SVMDB_NAMESPACE_VEC,
- "vpp_sig_error_rate");
-
- /*
- * Make sure vpp is actually running. Otherwise, there's every
- * chance that the database region will be wiped out by the
- * process monitor script
- */
-
- if (vpp_pidp == 0 || vector_ratep == 0 || rx_ratep == 0
- || sig_error_ratep == 0)
- {
- fformat (stdout, "vpp not running\n");
- exit (1);
- }
-
- do
- {
- /*
- * Once vpp exits, the svm db region will be recreated...
- * Can't use kill (*vpp_pidp, 0) if running as non-root /
- * accessing the shared-VM database via group perms.
- */
- if (*vpp_pidp == 0)
- {
- fformat (stdout, "vpp not running\n");
- exit (1);
- }
- fformat (stdout,
- "%d: vpp_vector_rate=%.2f, vpp_input_rate=%f, vpp_sig_error_rate=%f\n",
- *vpp_pidp, *vector_ratep, *rx_ratep, *sig_error_ratep);
-
- if (interval)
- sleep (interval);
- if (signal_received)
- break;
- }
- while (interval);
-
- svmdb_unmap (c);
- exit (0);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / blobdiff