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php5  5.3.10
Functions | Variables
fpm_unix.c File Reference
#include "fpm_config.h"
#include <string.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <grp.h>
#include "fpm.h"
#include "fpm_conf.h"
#include "fpm_cleanup.h"
#include "fpm_clock.h"
#include "fpm_stdio.h"
#include "fpm_unix.h"
#include "zlog.h"

Go to the source code of this file.

Functions

int fpm_unix_resolve_socket_premissions (struct fpm_worker_pool_s *wp)
static int fpm_unix_conf_wp (struct fpm_worker_pool_s *wp)
int fpm_unix_init_child (struct fpm_worker_pool_s *wp)
int fpm_unix_init_main ()

Variables

size_t fpm_pagesize

Function Documentation

static int fpm_unix_conf_wp ( struct fpm_worker_pool_s wp) [static]

Definition at line 74 of file fpm_unix.c.

{
       struct passwd *pwd;
       int is_root = !geteuid();

       if (is_root) {
              if (wp->config->user && *wp->config->user) {
                     if (strlen(wp->config->user) == strspn(wp->config->user, "0123456789")) {
                            wp->set_uid = strtoul(wp->config->user, 0, 10);
                     } else {
                            struct passwd *pwd;

                            pwd = getpwnam(wp->config->user);
                            if (!pwd) {
                                   zlog(ZLOG_ERROR, "[pool %s] cannot get uid for user '%s'", wp->config->name, wp->config->user);
                                   return -1;
                            }

                            wp->set_uid = pwd->pw_uid;
                            wp->set_gid = pwd->pw_gid;

                            wp->user = strdup(pwd->pw_name);
                            wp->home = strdup(pwd->pw_dir);
                     }
              }

              if (wp->config->group && *wp->config->group) {
                     if (strlen(wp->config->group) == strspn(wp->config->group, "0123456789")) {
                            wp->set_gid = strtoul(wp->config->group, 0, 10);
                     } else {
                            struct group *grp;

                            grp = getgrnam(wp->config->group);
                            if (!grp) {
                                   zlog(ZLOG_ERROR, "[pool %s] cannot get gid for group '%s'", wp->config->name, wp->config->group);
                                   return -1;
                            }
                            wp->set_gid = grp->gr_gid;
                     }
              }

#ifndef I_REALLY_WANT_ROOT_PHP
              if (wp->set_uid == 0 || wp->set_gid == 0) {
                     zlog(ZLOG_ERROR, "[pool %s] please specify user and group other than root", wp->config->name);
                     return -1;
              }
#endif
       } else { /* not root */
              if (wp->config->user && *wp->config->user) {
                     zlog(ZLOG_WARNING, "[pool %s] 'user' directive is ignored when FPM is not running as root", wp->config->name);
              }
              if (wp->config->group && *wp->config->group) {
                     zlog(ZLOG_WARNING, "[pool %s] 'group' directive is ignored when FPM is not running as root", wp->config->name);
              }
              if (wp->config->chroot && *wp->config->chroot) {
                     zlog(ZLOG_WARNING, "[pool %s] 'chroot' directive is ignored when FPM is not running as root", wp->config->name);
              }

              /* set up HOME and USER anyway */
              pwd = getpwuid(getuid());
              if (pwd) {
                     wp->user = strdup(pwd->pw_name);
                     wp->home = strdup(pwd->pw_dir);
              }
       }
       return 0;
}

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Definition at line 143 of file fpm_unix.c.

{
       int is_root = !geteuid();
       int made_chroot = 0;

       if (wp->config->rlimit_files) {
              struct rlimit r;

              r.rlim_max = r.rlim_cur = (rlim_t) wp->config->rlimit_files;

              if (0 > setrlimit(RLIMIT_NOFILE, &r)) {
                     zlog(ZLOG_SYSERROR, "[pool %s] failed to set rlimit_files for this pool. Please check your system limits or decrease rlimit_files. setrlimit(RLIMIT_NOFILE, %d)", wp->config->name, wp->config->rlimit_files);
              }
       }

       if (wp->config->rlimit_core) {
              struct rlimit r;

              r.rlim_max = r.rlim_cur = wp->config->rlimit_core == -1 ? (rlim_t) RLIM_INFINITY : (rlim_t) wp->config->rlimit_core;

              if (0 > setrlimit(RLIMIT_CORE, &r)) {
                     zlog(ZLOG_SYSERROR, "[pool %s] failed to set rlimit_core for this pool. Please check your system limits or decrease rlimit_core. setrlimit(RLIMIT_CORE, %d)", wp->config->name, wp->config->rlimit_core);
              }
       }

       if (is_root && wp->config->chroot && *wp->config->chroot) {
              if (0 > chroot(wp->config->chroot)) {
                     zlog(ZLOG_SYSERROR, "[pool %s] failed to chroot(%s)",  wp->config->name, wp->config->chroot);
                     return -1;
              }
              made_chroot = 1;
       }

       if (wp->config->chdir && *wp->config->chdir) {
              if (0 > chdir(wp->config->chdir)) {
                     zlog(ZLOG_SYSERROR, "[pool %s] failed to chdir(%s)", wp->config->name, wp->config->chdir);
                     return -1;
              }
       } else if (made_chroot) {
              chdir("/");
       }

       if (is_root) {
              if (wp->set_gid) {
                     if (0 > setgid(wp->set_gid)) {
                            zlog(ZLOG_SYSERROR, "[pool %s] failed to setgid(%d)", wp->config->name, wp->set_gid);
                            return -1;
                     }
              }
              if (wp->set_uid) {
                     if (0 > initgroups(wp->config->user, wp->set_gid)) {
                            zlog(ZLOG_SYSERROR, "[pool %s] failed to initgroups(%s, %d)", wp->config->name, wp->config->user, wp->set_gid);
                            return -1;
                     }
                     if (0 > setuid(wp->set_uid)) {
                            zlog(ZLOG_SYSERROR, "[pool %s] failed to setuid(%d)", wp->config->name, wp->set_uid);
                            return -1;
                     }
              }
       }

#ifdef HAVE_PRCTL
       if (0 > prctl(PR_SET_DUMPABLE, 1, 0, 0, 0)) {
              zlog(ZLOG_SYSERROR, "[pool %s] failed to prctl(PR_SET_DUMPABLE)", wp->config->name);
       }
#endif

       if (0 > fpm_clock_init()) {
              return -1;
       }
       return 0;
}

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Definition at line 217 of file fpm_unix.c.

{
       struct fpm_worker_pool_s *wp;

       if (fpm_global_config.rlimit_files) {
              struct rlimit r;

              r.rlim_max = r.rlim_cur = (rlim_t) fpm_global_config.rlimit_files;

              if (0 > setrlimit(RLIMIT_NOFILE, &r)) {
                     zlog(ZLOG_SYSERROR, "failed to set rlimit_core for this pool. Please check your system limits or decrease rlimit_files. setrlimit(RLIMIT_NOFILE, %d)", fpm_global_config.rlimit_files);
                     return -1;
              }
       }

       if (fpm_global_config.rlimit_core) {
              struct rlimit r;

              r.rlim_max = r.rlim_cur = fpm_global_config.rlimit_core == -1 ? (rlim_t) RLIM_INFINITY : (rlim_t) fpm_global_config.rlimit_core;

              if (0 > setrlimit(RLIMIT_CORE, &r)) {
                     zlog(ZLOG_SYSERROR, "failed to set rlimit_core for this pool. Please check your system limits or decrease rlimit_core. setrlimit(RLIMIT_CORE, %d)", fpm_global_config.rlimit_core);
                     return -1;
              }
       }

       fpm_pagesize = getpagesize();
       if (fpm_global_config.daemonize) {
              switch (fork()) {
                     case -1 :
                            zlog(ZLOG_SYSERROR, "failed to daemonize");
                            return -1;
                     case 0 :
                            break;
                     default :
                            fpm_cleanups_run(FPM_CLEANUP_PARENT_EXIT);
                            exit(0);
              }
       }

       setsid();
       if (0 > fpm_clock_init()) {
              return -1;
       }

       fpm_globals.parent_pid = getpid();
       for (wp = fpm_worker_all_pools; wp; wp = wp->next) {
              if (0 > fpm_unix_conf_wp(wp)) {
                     return -1;
              }
       }

       zlog_set_level(fpm_globals.log_level);
       return 0;
}

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Definition at line 30 of file fpm_unix.c.

{
       struct fpm_worker_pool_config_s *c = wp->config;

       /* uninitialized */
       wp->socket_uid = -1;
       wp->socket_gid = -1;
       wp->socket_mode = 0666;

       if (!c) {
              return 0;
       }

       if (c->listen_owner && *c->listen_owner) {
              struct passwd *pwd;

              pwd = getpwnam(c->listen_owner);
              if (!pwd) {
                     zlog(ZLOG_SYSERROR, "[pool %s] cannot get uid for user '%s'", wp->config->name, c->listen_owner);
                     return -1;
              }

              wp->socket_uid = pwd->pw_uid;
              wp->socket_gid = pwd->pw_gid;
       }

       if (c->listen_group && *c->listen_group) {
              struct group *grp;

              grp = getgrnam(c->listen_group);
              if (!grp) {
                     zlog(ZLOG_SYSERROR, "[pool %s] cannot get gid for group '%s'", wp->config->name, c->listen_group);
                     return -1;
              }
              wp->socket_gid = grp->gr_gid;
       }

       if (c->listen_mode && *c->listen_mode) {
              wp->socket_mode = strtoul(c->listen_mode, 0, 8);
       }
       return 0;
}

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Variable Documentation

Definition at line 28 of file fpm_unix.c.