X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.c;h=701165b9ad0df601ecb53dcf53480843634ae0f9;hp=ff61c656c872c3d834efef79f6be1604136f9953;hb=f660222775b2603c3d4b5a7119a4daffff794b2c;hpb=a2f87fddbfcb81f6f8f254b1a986a18f444212cf diff --git a/udevd.c b/udevd.c index ff61c656c..701165b9a 100644 --- a/udevd.c +++ b/udevd.c @@ -42,16 +42,11 @@ #include #include -#include "list.h" -#include "udev_libc_wrapper.h" #include "udev.h" -#include "udev_version.h" #include "udev_rules.h" -#include "udev_utils.h" #include "udevd.h" -#include "logging.h" -struct udev_rules rules; +static struct udev_rules rules; static int udevd_sock; static int uevent_netlink_sock; static int inotify_fd; @@ -94,8 +89,7 @@ static void asmlinkage udev_event_sig_handler(int signum) static int udev_event_process(struct uevent_msg *msg) { struct sigaction act; - struct udevice udev; - struct name_entry *name_loop; + struct udevice *udev; int i; int retval; @@ -106,30 +100,50 @@ static int udev_event_process(struct uevent_msg *msg) act.sa_flags = 0; sigaction(SIGALRM, &act, NULL); + /* reset to default */ + act.sa_handler = SIG_DFL; + sigaction(SIGINT, &act, NULL); + sigaction(SIGTERM, &act, NULL); + sigaction(SIGCHLD, &act, NULL); + sigaction(SIGHUP, &act, NULL); + /* trigger timeout to prevent hanging processes */ alarm(UDEV_ALARM_TIMEOUT); - /* reconstruct env from message */ + /* reconstruct event environment from message */ for (i = 0; msg->envp[i]; i++) putenv(msg->envp[i]); - udev_init_device(&udev, msg->devpath, msg->subsystem, msg->action); - retval = udev_process_event(&rules, &udev); + udev = udev_device_init(); + if (udev == NULL) + return -1; + strlcpy(udev->action, msg->action, sizeof(udev->action)); + sysfs_device_set_values(udev->dev, msg->devpath, msg->subsystem); + udev->devt = msg->devt; + + retval = udev_device_event(&rules, udev); /* run programs collected by RUN-key*/ - if (!retval) { - list_for_each_entry(name_loop, &udev.run_list, node) { + if (retval == 0 && !udev->ignore_device && udev_run) { + struct name_entry *name_loop; + + dbg("executing run list"); + list_for_each_entry(name_loop, &udev->run_list, node) { if (strncmp(name_loop->name, "socket:", strlen("socket:")) == 0) pass_env_to_socket(&name_loop->name[strlen("socket:")], msg->devpath, msg->action); - else - if (run_program(name_loop->name, udev.subsystem, NULL, 0, NULL, + else { + char program[PATH_SIZE]; + + strlcpy(program, name_loop->name, sizeof(program)); + udev_rules_apply_format(udev, program, sizeof(program)); + if (run_program(program, udev->dev->subsystem, NULL, 0, NULL, (udev_log_priority >= LOG_INFO))) retval = -1; + } } } - udev_cleanup_device(&udev); - + udev_device_cleanup(udev); return retval; } @@ -193,6 +207,10 @@ static void export_event_state(struct uevent_msg *msg, enum event_state state) if (loop_msg->devpath && strcmp(loop_msg->devpath, msg->devpath) == 0) return; + list_for_each_entry(loop_msg, &exec_list, node) + if (loop_msg->devpath && strcmp(loop_msg->devpath, msg->devpath) == 0) + return; + /* move failed events to the failed directory */ if (state == EVENT_FAILED) { create_path(filename_failed); @@ -515,12 +533,11 @@ static struct uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size) msg->envp[i++] = "UDEVD_EVENT=1"; msg->envp[i] = NULL; - if (!msg->devpath) { - info("DEVPATH missing, ignore message"); + if (msg->devpath == NULL || msg->action == NULL) { + info("DEVPATH or ACTION missing, ignore message"); free(msg); return NULL; } - return msg; } @@ -574,7 +591,6 @@ static struct uevent_msg *get_udevd_msg(void) switch (usend_msg.type) { case UDEVD_UEVENT_UDEVSEND: - case UDEVD_UEVENT_INITSEND: info("udevd event message received"); envbuf_size = size - offsetof(struct udevd_msg, envbuf); dbg("envbuf_size=%i", envbuf_size); @@ -620,7 +636,7 @@ static struct uevent_msg *get_netlink_msg(void) struct uevent_msg *msg; int bufpos; ssize_t size; - static char buffer[UEVENT_BUFFER_SIZE + 512]; + static char buffer[UEVENT_BUFFER_SIZE+512]; char *pos; size = recv(uevent_netlink_sock, &buffer, sizeof(buffer), 0); @@ -819,7 +835,7 @@ int main(int argc, char *argv[], char *envp[]) if (fd < 0) err("fatal, could not open /dev/null: %s", strerror(errno)); - udev_init_config(); + udev_config_init(); dbg("version %s", UDEV_VERSION); if (getuid() != 0) { @@ -859,6 +875,7 @@ int main(int argc, char *argv[], char *envp[]) } /* parse the rules and keep it in memory */ + sysfs_init(); udev_rules_init(&rules, 1); if (daemonize) { @@ -904,12 +921,24 @@ int main(int argc, char *argv[], char *envp[]) err("error getting pipes: %s", strerror(errno)); goto exit; } - retval = fcntl(signal_pipe[READ_END], F_SETFL, O_NONBLOCK); + + retval = fcntl(signal_pipe[READ_END], F_GETFL, 0); + if (retval < 0) { + err("error fcntl on read pipe: %s", strerror(errno)); + goto exit; + } + retval = fcntl(signal_pipe[READ_END], F_SETFL, retval | O_NONBLOCK); if (retval < 0) { err("error fcntl on read pipe: %s", strerror(errno)); goto exit; } - retval = fcntl(signal_pipe[WRITE_END], F_SETFL, O_NONBLOCK); + + retval = fcntl(signal_pipe[WRITE_END], F_GETFL, 0); + if (retval < 0) { + err("error fcntl on write pipe: %s", strerror(errno)); + goto exit; + } + retval = fcntl(signal_pipe[WRITE_END], F_SETFL, retval | O_NONBLOCK); if (retval < 0) { err("error fcntl on write pipe: %s", strerror(errno)); goto exit; @@ -1020,7 +1049,7 @@ int main(int argc, char *argv[], char *envp[]) /* rules changed, set by inotify or a signal*/ if (reload_config) { reload_config = 0; - udev_rules_close(&rules); + udev_rules_cleanup(&rules); udev_rules_init(&rules, 1); } @@ -1038,7 +1067,8 @@ int main(int argc, char *argv[], char *envp[]) } exit: - udev_rules_close(&rules); + udev_rules_cleanup(&rules); + sysfs_cleanup(); if (signal_pipe[READ_END] > 0) close(signal_pipe[READ_END]);