From f838f51c238f8dcc4568eb68a16a7a86024eea5d Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Fri, 12 May 2017 23:58:59 -0400 Subject: ./tools/notsd-move --- src/libsystemd/sd-daemon/Makefile | 1 - src/libsystemd/sd-daemon/sd-daemon.c | 622 ----------------------------------- 2 files changed, 623 deletions(-) delete mode 120000 src/libsystemd/sd-daemon/Makefile delete mode 100644 src/libsystemd/sd-daemon/sd-daemon.c (limited to 'src/libsystemd/sd-daemon') diff --git a/src/libsystemd/sd-daemon/Makefile b/src/libsystemd/sd-daemon/Makefile deleted file mode 120000 index d0b0e8e008..0000000000 --- a/src/libsystemd/sd-daemon/Makefile +++ /dev/null @@ -1 +0,0 @@ -../Makefile \ No newline at end of file diff --git a/src/libsystemd/sd-daemon/sd-daemon.c b/src/libsystemd/sd-daemon/sd-daemon.c deleted file mode 100644 index b20a7ebb4c..0000000000 --- a/src/libsystemd/sd-daemon/sd-daemon.c +++ /dev/null @@ -1,622 +0,0 @@ -/*** - 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 Lesser General Public License as published by - the Free Software Foundation; either version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see . -***/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "sd-daemon.h" - -#include "alloc-util.h" -#include "fd-util.h" -#include "fs-util.h" -#include "parse-util.h" -#include "path-util.h" -#include "socket-util.h" -#include "strv.h" -#include "util.h" - -#define SNDBUF_SIZE (8*1024*1024) - -static void unsetenv_all(bool unset_environment) { - - if (!unset_environment) - return; - - unsetenv("LISTEN_PID"); - unsetenv("LISTEN_FDS"); - unsetenv("LISTEN_FDNAMES"); -} - -_public_ int sd_listen_fds(int unset_environment) { - const char *e; - int n, r, fd; - pid_t pid; - - e = getenv("LISTEN_PID"); - if (!e) { - r = 0; - goto finish; - } - - r = parse_pid(e, &pid); - if (r < 0) - goto finish; - - /* Is this for us? */ - if (getpid() != pid) { - r = 0; - goto finish; - } - - e = getenv("LISTEN_FDS"); - if (!e) { - r = 0; - goto finish; - } - - r = safe_atoi(e, &n); - if (r < 0) - goto finish; - - assert_cc(SD_LISTEN_FDS_START < INT_MAX); - if (n <= 0 || n > INT_MAX - SD_LISTEN_FDS_START) { - r = -EINVAL; - goto finish; - } - - for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) { - r = fd_cloexec(fd, true); - if (r < 0) - goto finish; - } - - r = n; - -finish: - unsetenv_all(unset_environment); - return r; -} - -_public_ int sd_listen_fds_with_names(int unset_environment, char ***names) { - _cleanup_strv_free_ char **l = NULL; - bool have_names; - int n_names = 0, n_fds; - const char *e; - int r; - - if (!names) - return sd_listen_fds(unset_environment); - - e = getenv("LISTEN_FDNAMES"); - if (e) { - n_names = strv_split_extract(&l, e, ":", EXTRACT_DONT_COALESCE_SEPARATORS); - if (n_names < 0) { - unsetenv_all(unset_environment); - return n_names; - } - - have_names = true; - } else - have_names = false; - - n_fds = sd_listen_fds(unset_environment); - if (n_fds <= 0) - return n_fds; - - if (have_names) { - if (n_names != n_fds) - return -EINVAL; - } else { - r = strv_extend_n(&l, "unknown", n_fds); - if (r < 0) - return r; - } - - *names = l; - l = NULL; - - return n_fds; -} - -_public_ int sd_is_fifo(int fd, const char *path) { - struct stat st_fd; - - assert_return(fd >= 0, -EBADF); - - if (fstat(fd, &st_fd) < 0) - return -errno; - - if (!S_ISFIFO(st_fd.st_mode)) - return 0; - - if (path) { - struct stat st_path; - - if (stat(path, &st_path) < 0) { - - if (errno == ENOENT || errno == ENOTDIR) - return 0; - - return -errno; - } - - return - st_path.st_dev == st_fd.st_dev && - st_path.st_ino == st_fd.st_ino; - } - - return 1; -} - -_public_ int sd_is_special(int fd, const char *path) { - struct stat st_fd; - - assert_return(fd >= 0, -EBADF); - - if (fstat(fd, &st_fd) < 0) - return -errno; - - if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode)) - return 0; - - if (path) { - struct stat st_path; - - if (stat(path, &st_path) < 0) { - - if (errno == ENOENT || errno == ENOTDIR) - return 0; - - return -errno; - } - - if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode)) - return - st_path.st_dev == st_fd.st_dev && - st_path.st_ino == st_fd.st_ino; - else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode)) - return st_path.st_rdev == st_fd.st_rdev; - else - return 0; - } - - return 1; -} - -static int sd_is_socket_internal(int fd, int type, int listening) { - struct stat st_fd; - - assert_return(fd >= 0, -EBADF); - assert_return(type >= 0, -EINVAL); - - if (fstat(fd, &st_fd) < 0) - return -errno; - - if (!S_ISSOCK(st_fd.st_mode)) - return 0; - - if (type != 0) { - int other_type = 0; - socklen_t l = sizeof(other_type); - - if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &other_type, &l) < 0) - return -errno; - - if (l != sizeof(other_type)) - return -EINVAL; - - if (other_type != type) - return 0; - } - - if (listening >= 0) { - int accepting = 0; - socklen_t l = sizeof(accepting); - - if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0) - return -errno; - - if (l != sizeof(accepting)) - return -EINVAL; - - if (!accepting != !listening) - return 0; - } - - return 1; -} - -_public_ int sd_is_socket(int fd, int family, int type, int listening) { - int r; - - assert_return(fd >= 0, -EBADF); - assert_return(family >= 0, -EINVAL); - - r = sd_is_socket_internal(fd, type, listening); - if (r <= 0) - return r; - - if (family > 0) { - union sockaddr_union sockaddr = {}; - socklen_t l = sizeof(sockaddr); - - if (getsockname(fd, &sockaddr.sa, &l) < 0) - return -errno; - - if (l < sizeof(sa_family_t)) - return -EINVAL; - - return sockaddr.sa.sa_family == family; - } - - return 1; -} - -_public_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) { - union sockaddr_union sockaddr = {}; - socklen_t l = sizeof(sockaddr); - int r; - - assert_return(fd >= 0, -EBADF); - assert_return(IN_SET(family, 0, AF_INET, AF_INET6), -EINVAL); - - r = sd_is_socket_internal(fd, type, listening); - if (r <= 0) - return r; - - if (getsockname(fd, &sockaddr.sa, &l) < 0) - return -errno; - - if (l < sizeof(sa_family_t)) - return -EINVAL; - - if (sockaddr.sa.sa_family != AF_INET && - sockaddr.sa.sa_family != AF_INET6) - return 0; - - if (family != 0) - if (sockaddr.sa.sa_family != family) - return 0; - - if (port > 0) { - if (sockaddr.sa.sa_family == AF_INET) { - if (l < sizeof(struct sockaddr_in)) - return -EINVAL; - - return htobe16(port) == sockaddr.in.sin_port; - } else { - if (l < sizeof(struct sockaddr_in6)) - return -EINVAL; - - return htobe16(port) == sockaddr.in6.sin6_port; - } - } - - return 1; -} - -_public_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) { - union sockaddr_union sockaddr = {}; - socklen_t l = sizeof(sockaddr); - int r; - - assert_return(fd >= 0, -EBADF); - - r = sd_is_socket_internal(fd, type, listening); - if (r <= 0) - return r; - - if (getsockname(fd, &sockaddr.sa, &l) < 0) - return -errno; - - if (l < sizeof(sa_family_t)) - return -EINVAL; - - if (sockaddr.sa.sa_family != AF_UNIX) - return 0; - - if (path) { - if (length == 0) - length = strlen(path); - - if (length == 0) - /* Unnamed socket */ - return l == offsetof(struct sockaddr_un, sun_path); - - if (path[0]) - /* Normal path socket */ - return - (l >= offsetof(struct sockaddr_un, sun_path) + length + 1) && - memcmp(path, sockaddr.un.sun_path, length+1) == 0; - else - /* Abstract namespace socket */ - return - (l == offsetof(struct sockaddr_un, sun_path) + length) && - memcmp(path, sockaddr.un.sun_path, length) == 0; - } - - return 1; -} - -_public_ int sd_is_mq(int fd, const char *path) { - struct mq_attr attr; - - /* Check that the fd is valid */ - assert_return(fcntl(fd, F_GETFD) >= 0, -errno); - - if (mq_getattr(fd, &attr) < 0) { - if (errno == EBADF) - /* A non-mq fd (or an invalid one, but we ruled that out above) */ - return 0; - return -errno; - } - - if (path) { - char fpath[PATH_MAX]; - struct stat a, b; - - assert_return(path_is_absolute(path), -EINVAL); - - if (fstat(fd, &a) < 0) - return -errno; - - strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12); - fpath[sizeof(fpath)-1] = 0; - - if (stat(fpath, &b) < 0) - return -errno; - - if (a.st_dev != b.st_dev || - a.st_ino != b.st_ino) - return 0; - } - - return 1; -} - -_public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char *state, const int *fds, unsigned n_fds) { - union sockaddr_union sockaddr = { - .sa.sa_family = AF_UNIX, - }; - struct iovec iovec = { - .iov_base = (char*) state, - }; - struct msghdr msghdr = { - .msg_iov = &iovec, - .msg_iovlen = 1, - .msg_name = &sockaddr, - }; - _cleanup_close_ int fd = -1; - struct cmsghdr *cmsg = NULL; - const char *e; - bool have_pid; - int r; - - if (!state) { - r = -EINVAL; - goto finish; - } - - if (n_fds > 0 && !fds) { - r = -EINVAL; - goto finish; - } - - e = getenv("NOTIFY_SOCKET"); - if (!e) - return 0; - - /* Must be an abstract socket, or an absolute path */ - if ((e[0] != '@' && e[0] != '/') || e[1] == 0) { - r = -EINVAL; - goto finish; - } - - if (strlen(e) > sizeof(sockaddr.un.sun_path)) { - r = -EINVAL; - goto finish; - } - - fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0); - if (fd < 0) { - r = -errno; - goto finish; - } - - fd_inc_sndbuf(fd, SNDBUF_SIZE); - - iovec.iov_len = strlen(state); - - strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path)); - if (sockaddr.un.sun_path[0] == '@') - sockaddr.un.sun_path[0] = 0; - - msghdr.msg_namelen = SOCKADDR_UN_LEN(sockaddr.un); - - have_pid = pid != 0 && pid != getpid(); - - if (n_fds > 0 || have_pid) { - /* CMSG_SPACE(0) may return value different than zero, which results in miscalculated controllen. */ - msghdr.msg_controllen = - (n_fds > 0 ? CMSG_SPACE(sizeof(int) * n_fds) : 0) + - (have_pid ? CMSG_SPACE(sizeof(struct ucred)) : 0); - - msghdr.msg_control = alloca0(msghdr.msg_controllen); - - cmsg = CMSG_FIRSTHDR(&msghdr); - if (n_fds > 0) { - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - cmsg->cmsg_len = CMSG_LEN(sizeof(int) * n_fds); - - memcpy(CMSG_DATA(cmsg), fds, sizeof(int) * n_fds); - - if (have_pid) - assert_se(cmsg = CMSG_NXTHDR(&msghdr, cmsg)); - } - - if (have_pid) { - struct ucred *ucred; - - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_CREDENTIALS; - cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred)); - - ucred = (struct ucred*) CMSG_DATA(cmsg); - ucred->pid = pid; - ucred->uid = getuid(); - ucred->gid = getgid(); - } - } - - /* First try with fake ucred data, as requested */ - if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) >= 0) { - r = 1; - goto finish; - } - - /* If that failed, try with our own ucred instead */ - if (have_pid) { - msghdr.msg_controllen -= CMSG_SPACE(sizeof(struct ucred)); - if (msghdr.msg_controllen == 0) - msghdr.msg_control = NULL; - - if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) >= 0) { - r = 1; - goto finish; - } - } - - r = -errno; - -finish: - if (unset_environment) - unsetenv("NOTIFY_SOCKET"); - - return r; -} - -_public_ int sd_pid_notify(pid_t pid, int unset_environment, const char *state) { - return sd_pid_notify_with_fds(pid, unset_environment, state, NULL, 0); -} - -_public_ int sd_notify(int unset_environment, const char *state) { - return sd_pid_notify_with_fds(0, unset_environment, state, NULL, 0); -} - -_public_ int sd_pid_notifyf(pid_t pid, int unset_environment, const char *format, ...) { - _cleanup_free_ char *p = NULL; - int r; - - if (format) { - va_list ap; - - va_start(ap, format); - r = vasprintf(&p, format, ap); - va_end(ap); - - if (r < 0 || !p) - return -ENOMEM; - } - - return sd_pid_notify(pid, unset_environment, p); -} - -_public_ int sd_notifyf(int unset_environment, const char *format, ...) { - _cleanup_free_ char *p = NULL; - int r; - - if (format) { - va_list ap; - - va_start(ap, format); - r = vasprintf(&p, format, ap); - va_end(ap); - - if (r < 0 || !p) - return -ENOMEM; - } - - return sd_pid_notify(0, unset_environment, p); -} - -_public_ int sd_booted(void) { - /* We test whether the runtime unit file directory has been - * created. This takes place in mount-setup.c, so is - * guaranteed to happen very early during boot. */ - - return laccess("/run/systemd/system/", F_OK) >= 0; -} - -_public_ int sd_watchdog_enabled(int unset_environment, uint64_t *usec) { - const char *s, *p = ""; /* p is set to dummy value to do unsetting */ - uint64_t u; - int r = 0; - - s = getenv("WATCHDOG_USEC"); - if (!s) - goto finish; - - r = safe_atou64(s, &u); - if (r < 0) - goto finish; - if (u <= 0 || u >= USEC_INFINITY) { - r = -EINVAL; - goto finish; - } - - p = getenv("WATCHDOG_PID"); - if (p) { - pid_t pid; - - r = parse_pid(p, &pid); - if (r < 0) - goto finish; - - /* Is this for us? */ - if (getpid() != pid) { - r = 0; - goto finish; - } - } - - if (usec) - *usec = u; - - r = 1; - -finish: - if (unset_environment && s) - unsetenv("WATCHDOG_USEC"); - if (unset_environment && p) - unsetenv("WATCHDOG_PID"); - - return r; -} -- cgit v1.2.3