/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <sys/wait.h> #include <unistd.h> #include <string.h> #include <errno.h> #include "macro.h" #include "execute.h" #include "kmod-setup.h" static const char * const kmod_table[] = { "autofs4", "/sys/class/misc/autofs", "ipv6", "/sys/module/ipv6", "unix", "/proc/net/unix" }; int kmod_setup(void) { unsigned i, n = 0; const char * cmdline[3 + ELEMENTSOF(kmod_table) + 1]; ExecCommand command; ExecContext context; pid_t pid; int r; for (i = 0; i < ELEMENTSOF(kmod_table); i += 2) { if (access(kmod_table[i+1], F_OK) >= 0) continue; log_debug("Your kernel apparently lacks built-in %s support. Might be a good idea to compile it in. " "We'll now try to work around this by calling '/sbin/modprobe %s'...", kmod_table[i], kmod_table[i]); cmdline[3 + n++] = kmod_table[i]; } if (n <= 0) return 0; cmdline[0] = "/sbin/modprobe"; cmdline[1] = "-qab"; cmdline[2] = "--"; cmdline[3 + n] = NULL; zero(command); zero(context); command.path = (char*) cmdline[0]; command.argv = (char**) cmdline; exec_context_init(&context); r = exec_spawn(&command, NULL, &context, NULL, 0, NULL, false, false, false, false, NULL, &pid); exec_context_done(&context); if (r < 0) { log_error("Failed to spawn %s: %s", cmdline[0], strerror(-r)); return r; } return wait_for_terminate_and_warn(cmdline[0], pid); }