diff options
Diffstat (limited to 'src/udev')
| -rw-r--r-- | src/udev/Makefile.am | 8 | ||||
| -rw-r--r-- | src/udev/acl-util.c | 68 | ||||
| -rw-r--r-- | src/udev/acl-util.h | 24 | ||||
| -rw-r--r-- | src/udev/logind-acl.c | 252 | ||||
| -rw-r--r-- | src/udev/logind-acl.h | 57 | ||||
| -rw-r--r-- | src/udev/sd-daemon.c | 538 | ||||
| -rw-r--r-- | src/udev/sd-daemon.h | 284 | ||||
| -rw-r--r-- | src/udev/sd-login.c | 794 | ||||
| -rw-r--r-- | src/udev/sd-login.h | 160 | ||||
| -rw-r--r-- | src/udev/udev-builtin-uaccess.c | 98 | ||||
| -rw-r--r-- | src/udev/udev-builtin.c | 3 | ||||
| -rw-r--r-- | src/udev/udev.h | 4 | ||||
| -rw-r--r-- | src/udev/udevd.c | 92 |
13 files changed, 18 insertions, 2364 deletions
diff --git a/src/udev/Makefile.am b/src/udev/Makefile.am index d43d4600e0..972c275c8c 100644 --- a/src/udev/Makefile.am +++ b/src/udev/Makefile.am @@ -56,16 +56,12 @@ libudev_core_la_SOURCES = \ udev-builtin-usb_id.c \ dev-setup.c \ label.c \ - mkdir.c \ - sd-daemon.c \ - sd-login.c + mkdir.c noinst_HEADERS = \ dev-setup.h \ label.h \ - mkdir.h \ - sd-daemon.h \ - sd-login.h + mkdir.h include_HEADERS = \ udev.h diff --git a/src/udev/acl-util.c b/src/udev/acl-util.c deleted file mode 100644 index d1eb6f2268..0000000000 --- a/src/udev/acl-util.c +++ /dev/null @@ -1,68 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 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 <http://www.gnu.org/licenses/>. -***/ - -#include <assert.h> -#include <sys/acl.h> -#include <acl/libacl.h> -#include <errno.h> -#include <stdbool.h> - -#include "acl-util.h" - -int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry) { - acl_entry_t i; - int found; - - assert(acl); - assert(entry); - - for (found = acl_get_entry(acl, ACL_FIRST_ENTRY, &i); - found > 0; - found = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) { - - acl_tag_t tag; - uid_t *u; - bool b; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if (tag != ACL_USER) - continue; - - u = acl_get_qualifier(i); - if (!u) - return -errno; - - b = *u == uid; - acl_free(u); - - if (b) { - *entry = i; - return 1; - } - } - - if (found < 0) - return -errno; - - return 0; -} diff --git a/src/udev/acl-util.h b/src/udev/acl-util.h deleted file mode 100644 index 31fbbcd510..0000000000 --- a/src/udev/acl-util.h +++ /dev/null @@ -1,24 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 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 <http://www.gnu.org/licenses/>. -***/ - -int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry); diff --git a/src/udev/logind-acl.c b/src/udev/logind-acl.c deleted file mode 100644 index a2b31a3b80..0000000000 --- a/src/udev/logind-acl.c +++ /dev/null @@ -1,252 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 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 <http://www.gnu.org/licenses/>. -***/ - -#ifdef HAVE_ACL - -#include <assert.h> -#include <sys/acl.h> -#include <acl/libacl.h> -#include <errno.h> -#include <string.h> - -#include "logind-acl.h" -#include "util.h" -#include "acl-util.h" - -static int flush_acl(acl_t acl) { - acl_entry_t i; - int found; - bool changed = false; - - assert(acl); - - for (found = acl_get_entry(acl, ACL_FIRST_ENTRY, &i); - found > 0; - found = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) { - - acl_tag_t tag; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if (tag != ACL_USER) - continue; - - if (acl_delete_entry(acl, i) < 0) - return -errno; - - changed = true; - } - - if (found < 0) - return -errno; - - return changed; -} - -int devnode_acl(const char *path, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - - acl_t acl; - int r = 0; - bool changed = false; - - assert(path); - - acl = acl_get_file(path, ACL_TYPE_ACCESS); - if (!acl) - return -errno; - - if (flush) { - - r = flush_acl(acl); - if (r < 0) - goto finish; - if (r > 0) - changed = true; - - } else if (del && old_uid > 0) { - acl_entry_t entry; - - r = acl_find_uid(acl, old_uid, &entry); - if (r < 0) - goto finish; - - if (r > 0) { - if (acl_delete_entry(acl, entry) < 0) { - r = -errno; - goto finish; - } - - changed = true; - } - } - - if (add && new_uid > 0) { - acl_entry_t entry; - acl_permset_t permset; - int rd, wt; - - r = acl_find_uid(acl, new_uid, &entry); - if (r < 0) - goto finish; - - if (r == 0) { - if (acl_create_entry(&acl, &entry) < 0) { - r = -errno; - goto finish; - } - - if (acl_set_tag_type(entry, ACL_USER) < 0 || - acl_set_qualifier(entry, &new_uid) < 0) { - r = -errno; - goto finish; - } - } - - if (acl_get_permset(entry, &permset) < 0) { - r = -errno; - goto finish; - } - - rd = acl_get_perm(permset, ACL_READ); - if (rd < 0) { - r = -errno; - goto finish; - } - - wt = acl_get_perm(permset, ACL_WRITE); - if (wt < 0) { - r = -errno; - goto finish; - } - - if (!rd || !wt) { - - if (acl_add_perm(permset, ACL_READ|ACL_WRITE) < 0) { - r = -errno; - goto finish; - } - - changed = true; - } - } - - if (!changed) - goto finish; - - if (acl_calc_mask(&acl) < 0) { - r = -errno; - goto finish; - } - - if (acl_set_file(path, ACL_TYPE_ACCESS, acl) < 0) { - r = -errno; - goto finish; - } - - r = 0; - -finish: - acl_free(acl); - - return r; -} - -int devnode_acl_all(struct udev *udev, - const char *seat, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - - struct udev_list_entry *item = NULL, *first = NULL; - struct udev_enumerate *e; - int r; - - assert(udev); - - if (isempty(seat)) - seat = "seat0"; - - e = udev_enumerate_new(udev); - if (!e) - return -ENOMEM; - - /* We can only match by one tag in libudev. We choose - * "uaccess" for that. If we could match for two tags here we - * could add the seat name as second match tag, but this would - * be hardly optimizable in libudev, and hence checking the - * second tag manually in our loop is a good solution. */ - - r = udev_enumerate_add_match_tag(e, "uaccess"); - if (r < 0) - goto finish; - - r = udev_enumerate_scan_devices(e); - if (r < 0) - goto finish; - - first = udev_enumerate_get_list_entry(e); - udev_list_entry_foreach(item, first) { - struct udev_device *d; - const char *node, *sn; - - d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)); - if (!d) { - r = -ENOMEM; - goto finish; - } - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - if (!streq(seat, sn)) { - udev_device_unref(d); - continue; - } - - node = udev_device_get_devnode(d); - if (!node) { - /* In case people mistag devices with nodes, we need to ignore this */ - udev_device_unref(d); - continue; - } - - log_debug("Fixing up %s for seat %s...", node, sn); - - r = devnode_acl(node, flush, del, old_uid, add, new_uid); - udev_device_unref(d); - - if (r < 0) - goto finish; - } - -finish: - if (e) - udev_enumerate_unref(e); - - return r; -} - -#endif diff --git a/src/udev/logind-acl.h b/src/udev/logind-acl.h deleted file mode 100644 index ec09843a78..0000000000 --- a/src/udev/logind-acl.h +++ /dev/null @@ -1,57 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 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 <http://www.gnu.org/licenses/>. -***/ - -#include <sys/types.h> -#include <stdbool.h> -#include <libudev.h> - -#ifdef HAVE_ACL - -int devnode_acl(const char *path, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid); - -int devnode_acl_all(struct udev *udev, - const char *seat, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid); -#else - -static inline int devnode_acl(const char *path, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - return 0; -} - -static inline int devnode_acl_all(struct udev *udev, - const char *seat, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - return 0; -} - -#endif diff --git a/src/udev/sd-daemon.c b/src/udev/sd-daemon.c deleted file mode 100644 index d87afb97ef..0000000000 --- a/src/udev/sd-daemon.c +++ /dev/null @@ -1,538 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - Copyright 2010 Lennart Poettering - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this software and associated documentation files - (the "Software"), to deal in the Software without restriction, - including without limitation the rights to use, copy, modify, merge, - publish, distribute, sublicense, and/or sell copies of the Software, - and to permit persons to whom the Software is furnished to do so, - subject to the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. -***/ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <sys/un.h> -#ifdef __BIONIC__ -#include <linux/fcntl.h> -#else -#include <sys/fcntl.h> -#endif -#include <netinet/in.h> -#include <stdlib.h> -#include <errno.h> -#include <unistd.h> -#include <string.h> -#include <stdarg.h> -#include <stdio.h> -#include <stddef.h> -#include <limits.h> - -#if defined(__linux__) -#include <mqueue.h> -#endif - -#include "sd-daemon.h" - -#if (__GNUC__ >= 4) -#ifdef SD_EXPORT_SYMBOLS -/* Export symbols */ -#define _sd_export_ __attribute__ ((visibility("default"))) -#else -/* Don't export the symbols */ -#define _sd_export_ __attribute__ ((visibility("hidden"))) -#endif -#else -#define _sd_export_ -#endif - -_sd_export_ int sd_listen_fds(int unset_environment) { - -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) - return 0; -#else - int r, fd; - const char *e; - char *p = NULL; - unsigned long l; - - e = getenv("LISTEN_PID"); - if (!e) { - r = 0; - goto finish; - } - - errno = 0; - l = strtoul(e, &p, 10); - - if (errno != 0) { - r = -errno; - goto finish; - } - - if (!p || p == e || *p || l <= 0) { - r = -EINVAL; - goto finish; - } - - /* Is this for us? */ - if (getpid() != (pid_t) l) { - r = 0; - goto finish; - } - - e = getenv("LISTEN_FDS"); - if (!e) { - r = 0; - goto finish; - } - - errno = 0; - l = strtoul(e, &p, 10); - - if (errno != 0) { - r = -errno; - goto finish; - } - - if (!p || p == e || *p) { - r = -EINVAL; - goto finish; - } - - for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) l; fd ++) { - int flags; - - flags = fcntl(fd, F_GETFD); - if (flags < 0) { - r = -errno; - goto finish; - } - - if (flags & FD_CLOEXEC) - continue; - - if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0) { - r = -errno; - goto finish; - } - } - - r = (int) l; - -finish: - if (unset_environment) { - unsetenv("LISTEN_PID"); - unsetenv("LISTEN_FDS"); - } - - return r; -#endif -} - -_sd_export_ int sd_is_fifo(int fd, const char *path) { - struct stat st_fd; - - if (fd < 0) - return -EINVAL; - - 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; -} - -_sd_export_ int sd_is_special(int fd, const char *path) { - struct stat st_fd; - - if (fd < 0) - return -EINVAL; - - 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; - - if (fd < 0 || type < 0) - return -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; -} - -union sockaddr_union { - struct sockaddr sa; - struct sockaddr_in in4; - struct sockaddr_in6 in6; - struct sockaddr_un un; - struct sockaddr_storage storage; -}; - -_sd_export_ int sd_is_socket(int fd, int family, int type, int listening) { - int r; - - if (family < 0) - return -EINVAL; - - r = sd_is_socket_internal(fd, type, listening); - if (r <= 0) - return r; - - if (family > 0) { - union sockaddr_union sockaddr; - socklen_t l; - - memset(&sockaddr, 0, sizeof(sockaddr)); - 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; -} - -_sd_export_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) { - union sockaddr_union sockaddr; - socklen_t l; - int r; - - if (family != 0 && family != AF_INET && family != AF_INET6) - return -EINVAL; - - r = sd_is_socket_internal(fd, type, listening); - if (r <= 0) - return r; - - memset(&sockaddr, 0, sizeof(sockaddr)); - l = sizeof(sockaddr); - - 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 htons(port) == sockaddr.in4.sin_port; - } else { - if (l < sizeof(struct sockaddr_in6)) - return -EINVAL; - - return htons(port) == sockaddr.in6.sin6_port; - } - } - - return 1; -} - -_sd_export_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) { - union sockaddr_union sockaddr; - socklen_t l; - int r; - - r = sd_is_socket_internal(fd, type, listening); - if (r <= 0) - return r; - - memset(&sockaddr, 0, sizeof(sockaddr)); - l = sizeof(sockaddr); - - 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; -} - -#if OBSOLETE -_sd_export_ int sd_is_mq(int fd, const char *path) { -#if !defined(__linux__) - return 0; -#else - struct mq_attr attr; - - if (fd < 0) - return -EINVAL; - - if (mq_getattr(fd, &attr) < 0) - return -errno; - - if (path) { - char fpath[PATH_MAX]; - struct stat a, b; - - if (path[0] != '/') - return -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; -#endif -} -#endif - -_sd_export_ int sd_notify(int unset_environment, const char *state) { -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC) - return 0; -#else - int fd = -1, r; - struct msghdr msghdr; - struct iovec iovec; - union sockaddr_union sockaddr; - const char *e; - - if (!state) { - 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; - } - - fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0); - if (fd < 0) { - r = -errno; - goto finish; - } - - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sa.sa_family = AF_UNIX; - strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path)); - - if (sockaddr.un.sun_path[0] == '@') - sockaddr.un.sun_path[0] = 0; - - memset(&iovec, 0, sizeof(iovec)); - iovec.iov_base = (char*) state; - iovec.iov_len = strlen(state); - - memset(&msghdr, 0, sizeof(msghdr)); - msghdr.msg_name = &sockaddr; - msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e); - - if (msghdr.msg_namelen > sizeof(struct sockaddr_un)) - msghdr.msg_namelen = sizeof(struct sockaddr_un); - - msghdr.msg_iov = &iovec; - msghdr.msg_iovlen = 1; - - if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { - r = -errno; - goto finish; - } - - r = 1; - -finish: - if (unset_environment) - unsetenv("NOTIFY_SOCKET"); - - if (fd >= 0) - close(fd); - - return r; -#endif -} - -_sd_export_ int sd_notifyf(int unset_environment, const char *format, ...) { -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) - return 0; -#else - va_list ap; - char *p = NULL; - int r; - - va_start(ap, format); - r = vasprintf(&p, format, ap); - va_end(ap); - - if (r < 0 || !p) - return -ENOMEM; - - r = sd_notify(unset_environment, p); - free(p); - - return r; -#endif -} - -_sd_export_ int sd_booted(void) { -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) - return 0; -#else - - struct stat a, b; - - /* We simply test whether the systemd cgroup hierarchy is - * mounted */ - - if (lstat("/sys/fs/cgroup", &a) < 0) - return 0; - - if (lstat("/sys/fs/cgroup/systemd", &b) < 0) - return 0; - - return a.st_dev != b.st_dev; -#endif -} diff --git a/src/udev/sd-daemon.h b/src/udev/sd-daemon.h deleted file mode 100644 index 7423b34438..0000000000 --- a/src/udev/sd-daemon.h +++ /dev/null @@ -1,284 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#ifndef foosddaemonhfoo -#define foosddaemonhfoo - -/*** - Copyright 2010 Lennart Poettering - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this software and associated documentation files - (the "Software"), to deal in the Software without restriction, - including without limitation the rights to use, copy, modify, merge, - publish, distribute, sublicense, and/or sell copies of the Software, - and to permit persons to whom the Software is furnished to do so, - subject to the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. -***/ - -#include <sys/types.h> -#include <inttypes.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* - Reference implementation of a few systemd related interfaces for - writing daemons. These interfaces are trivial to implement. To - simplify porting we provide this reference implementation. - Applications are welcome to reimplement the algorithms described - here if they do not want to include these two source files. - - The following functionality is provided: - - - Support for logging with log levels on stderr - - File descriptor passing for socket-based activation - - Daemon startup and status notification - - Detection of systemd boots - - You may compile this with -DDISABLE_SYSTEMD to disable systemd - support. This makes all those calls NOPs that are directly related to - systemd (i.e. only sd_is_xxx() will stay useful). - - Since this is drop-in code we don't want any of our symbols to be - exported in any case. Hence we declare hidden visibility for all of - them. - - You may find an up-to-date version of these source files online: - - http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h - http://cgit.freedesktop.org/systemd/systemd/plain/src/libsystemd-daemon/sd-daemon.c - - This should compile on non-Linux systems, too, but with the - exception of the sd_is_xxx() calls all functions will become NOPs. - - See sd-daemon(3) for more information. -*/ - -#ifndef _sd_printf_attr_ -#if __GNUC__ >= 4 -#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b))) -#else -#define _sd_printf_attr_(a,b) -#endif -#endif - -/* - Log levels for usage on stderr: - - fprintf(stderr, SD_NOTICE "Hello World!\n"); - - This is similar to printk() usage in the kernel. -*/ -#define SD_EMERG "<0>" /* system is unusable */ -#define SD_ALERT "<1>" /* action must be taken immediately */ -#define SD_CRIT "<2>" /* critical conditions */ -#define SD_ERR "<3>" /* error conditions */ -#define SD_WARNING "<4>" /* warning conditions */ -#define SD_NOTICE "<5>" /* normal but significant condition */ -#define SD_INFO "<6>" /* informational */ -#define SD_DEBUG "<7>" /* debug-level messages */ - -/* The first passed file descriptor is fd 3 */ -#define SD_LISTEN_FDS_START 3 - -/* - Returns how many file descriptors have been passed, or a negative - errno code on failure. Optionally, removes the $LISTEN_FDS and - $LISTEN_PID file descriptors from the environment (recommended, but - problematic in threaded environments). If r is the return value of - this function you'll find the file descriptors passed as fds - SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative - errno style error code on failure. This function call ensures that - the FD_CLOEXEC flag is set for the passed file descriptors, to make - sure they are not passed on to child processes. If FD_CLOEXEC shall - not be set, the caller needs to unset it after this call for all file - descriptors that are used. - - See sd_listen_fds(3) for more information. -*/ -int sd_listen_fds(int unset_environment); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a FIFO in the file system stored under the - specified path, 0 otherwise. If path is NULL a path name check will - not be done and the call only verifies if the file descriptor - refers to a FIFO. Returns a negative errno style error code on - failure. - - See sd_is_fifo(3) for more information. -*/ -int sd_is_fifo(int fd, const char *path); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a special character device on the file - system stored under the specified path, 0 otherwise. - If path is NULL a path name check will not be done and the call - only verifies if the file descriptor refers to a special character. - Returns a negative errno style error code on failure. - - See sd_is_special(3) for more information. -*/ -int sd_is_special(int fd, const char *path); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a socket of the specified family (AF_INET, - ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If - family is 0 a socket family check will not be done. If type is 0 a - socket type check will not be done and the call only verifies if - the file descriptor refers to a socket. If listening is > 0 it is - verified that the socket is in listening mode. (i.e. listen() has - been called) If listening is == 0 it is verified that the socket is - not in listening mode. If listening is < 0 no listening mode check - is done. Returns a negative errno style error code on failure. - - See sd_is_socket(3) for more information. -*/ -int sd_is_socket(int fd, int family, int type, int listening); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is an Internet socket, of the specified family - (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM, - SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version - check is not done. If type is 0 a socket type check will not be - done. If port is 0 a socket port check will not be done. The - listening flag is used the same way as in sd_is_socket(). Returns a - negative errno style error code on failure. - - See sd_is_socket_inet(3) for more information. -*/ -int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is an AF_UNIX socket of the specified type - (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0 - a socket type check will not be done. If path is NULL a socket path - check will not be done. For normal AF_UNIX sockets set length to - 0. For abstract namespace sockets set length to the length of the - socket name (including the initial 0 byte), and pass the full - socket path in path (including the initial 0 byte). The listening - flag is used the same way as in sd_is_socket(). Returns a negative - errno style error code on failure. - - See sd_is_socket_unix(3) for more information. -*/ -int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a POSIX Message Queue of the specified name, - 0 otherwise. If path is NULL a message queue name check is not - done. Returns a negative errno style error code on failure. -*/ -#if OBSOLETE -int sd_is_mq(int fd, const char *path); -#endif - -/* - Informs systemd about changed daemon state. This takes a number of - newline separated environment-style variable assignments in a - string. The following variables are known: - - READY=1 Tells systemd that daemon startup is finished (only - relevant for services of Type=notify). The passed - argument is a boolean "1" or "0". Since there is - little value in signaling non-readiness the only - value daemons should send is "READY=1". - - STATUS=... Passes a single-line status string back to systemd - that describes the daemon state. This is free-from - and can be used for various purposes: general state - feedback, fsck-like programs could pass completion - percentages and failing programs could pass a human - readable error message. Example: "STATUS=Completed - 66% of file system check..." - - ERRNO=... If a daemon fails, the errno-style error code, - formatted as string. Example: "ERRNO=2" for ENOENT. - - BUSERROR=... If a daemon fails, the D-Bus error-style error - code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut" - - MAINPID=... The main pid of a daemon, in case systemd did not - fork off the process itself. Example: "MAINPID=4711" - - WATCHDOG=1 Tells systemd to update the watchdog timestamp. - Services using this feature should do this in - regular intervals. A watchdog framework can use the - timestamps to detect failed services. - - Daemons can choose to send additional variables. However, it is - recommended to prefix variable names not listed above with X_. - - Returns a negative errno-style error code on failure. Returns > 0 - if systemd could be notified, 0 if it couldn't possibly because - systemd is not running. - - Example: When a daemon finished starting up, it could issue this - call to notify systemd about it: - - sd_notify(0, "READY=1"); - - See sd_notifyf() for more complete examples. - - See sd_notify(3) for more information. -*/ -int sd_notify(int unset_environment, const char *state); - -/* - Similar to sd_notify() but takes a format string. - - Example 1: A daemon could send the following after initialization: - - sd_notifyf(0, "READY=1\n" - "STATUS=Processing requests...\n" - "MAINPID=%lu", - (unsigned long) getpid()); - - Example 2: A daemon could send the following shortly before - exiting, on failure: - - sd_notifyf(0, "STATUS=Failed to start up: %s\n" - "ERRNO=%i", - strerror(errno), - errno); - - See sd_notifyf(3) for more information. -*/ -int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(2,3); - -/* - Returns > 0 if the system was booted with systemd. Returns < 0 on - error. Returns 0 if the system was not booted with systemd. Note - that all of the functions above handle non-systemd boots just - fine. You should NOT protect them with a call to this function. Also - note that this function checks whether the system, not the user - session is controlled by systemd. However the functions above work - for both user and system services. - - See sd_booted(3) for more information. -*/ -int sd_booted(void); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/udev/sd-login.c b/src/udev/sd-login.c deleted file mode 100644 index 45e3bb8dcd..0000000000 --- a/src/udev/sd-login.c +++ /dev/null @@ -1,794 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2011 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 <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> -#include <string.h> -#include <errno.h> -#include <sys/inotify.h> - -#include "util.h" -#include "cgroup-util.h" -#include "macro.h" -#include "sd-login.h" -#include "strv.h" - -_public_ int sd_pid_get_session(pid_t pid, char **session) { - int r; - char *cgroup, *p; - - if (pid < 0) - return -EINVAL; - - if (!session) - return -EINVAL; - - r = cg_pid_get_cgroup(pid, NULL, &cgroup); - if (r < 0) - return r; - - if (!startswith(cgroup, "/user/")) { - free(cgroup); - return -ENOENT; - } - - p = strchr(cgroup + 6, '/'); - if (!p) { - free(cgroup); - return -ENOENT; - } - - p++; - if (startswith(p, "shared/") || streq(p, "shared")) { - free(cgroup); - return -ENOENT; - } - - p = strndup(p, strcspn(p, "/")); - free(cgroup); - - if (!p) - return -ENOMEM; - - *session = p; - return 0; -} - -_public_ int sd_pid_get_unit(pid_t pid, char **unit) { - - if (pid < 0) - return -EINVAL; - - if (!unit) - return -EINVAL; - - return cg_pid_get_unit(pid, unit); -} - -_public_ int sd_pid_get_owner_uid(pid_t pid, uid_t *uid) { - int r; - char *root, *cgroup, *p, *cc; - struct stat st; - - if (pid < 0) - return -EINVAL; - - if (!uid) - return -EINVAL; - - r = cg_pid_get_cgroup(pid, &root, &cgroup); - if (r < 0) - return r; - - if (!startswith(cgroup, "/user/")) { - free(cgroup); - free(root); - return -ENOENT; - } - - p = strchr(cgroup + 6, '/'); - if (!p) { - free(cgroup); - return -ENOENT; - } - - p++; - p += strcspn(p, "/"); - *p = 0; - - r = cg_get_path(SYSTEMD_CGROUP_CONTROLLER, root, cgroup, &cc); - free(root); - free(cgroup); - - if (r < 0) - return -ENOMEM; - - r = lstat(cc, &st); - free(cc); - - if (r < 0) - return -errno; - - if (!S_ISDIR(st.st_mode)) - return -ENOTDIR; - - *uid = st.st_uid; - return 0; -} - -_public_ int sd_uid_get_state(uid_t uid, char**state) { - char *p, *s = NULL; - int r; - - if (!state) - return -EINVAL; - - if (asprintf(&p, "/run/systemd/users/%lu", (unsigned long) uid) < 0) - return -ENOMEM; - - r = parse_env_file(p, NEWLINE, "STATE", &s, NULL); - free(p); - - if (r == -ENOENT) { - free(s); - s = strdup("offline"); - if (!s) - return -ENOMEM; - - *state = s; - return 0; - } else if (r < 0) { - free(s); - return r; - } else if (!s) - return -EIO; - - *state = s; - return 0; -} - -_public_ int sd_uid_is_on_seat(uid_t uid, int require_active, const char *seat) { - char *p, *w, *t, *state, *s = NULL; - size_t l; - int r; - const char *variable; - - if (!seat) - return -EINVAL; - - variable = require_active ? "ACTIVE_UID" : "UIDS"; - - p = strappend("/run/systemd/seats/", seat); - if (!p) - return -ENOMEM; - - r = parse_env_file(p, NEWLINE, variable, &s, NULL); - free(p); - - if (r < 0) { - free(s); - return r; - } - - if (!s) - return -EIO; - - if (asprintf(&t, "%lu", (unsigned long) uid) < 0) { - free(s); - return -ENOMEM; - } - - FOREACH_WORD(w, l, s, state) { - if (strncmp(t, w, l) == 0) { - free(s); - free(t); - - return 1; - } - } - - free(s); - free(t); - - return 0; -} - -static int uid_get_array(uid_t uid, const char *variable, char ***array) { - char *p, *s = NULL; - char **a; - int r; - - if (asprintf(&p, "/run/systemd/users/%lu", (unsigned long) uid) < 0) - return -ENOMEM; - - r = parse_env_file(p, NEWLINE, - variable, &s, - NULL); - free(p); - - if (r < 0) { - free(s); - - if (r == -ENOENT) { - if (array) - *array = NULL; - return 0; - } - - return r; - } - - if (!s) { - if (array) - *array = NULL; - return 0; - } - - a = strv_split(s, " "); - free(s); - - if (!a) - return -ENOMEM; - - strv_uniq(a); - r = strv_length(a); - - if (array) - *array = a; - else - strv_free(a); - - return r; -} - -_public_ int sd_uid_get_sessions(uid_t uid, int require_active, char ***sessions) { - return uid_get_array( - uid, - require_active == 0 ? "ONLINE_SESSIONS" : - require_active > 0 ? "ACTIVE_SESSIONS" : - "SESSIONS", - sessions); -} - -_public_ int sd_uid_get_seats(uid_t uid, int require_active, char ***seats) { - return uid_get_array( - uid, - require_active == 0 ? "ONLINE_SEATS" : - require_active > 0 ? "ACTIVE_SEATS" : - "SEATS", - seats); -} - -static int file_of_session(const char *session, char **_p) { - char *p; - int r; - - assert(_p); - - if (session) - p = strappend("/run/systemd/sessions/", session); - else { - char *buf; - - r = sd_pid_get_session(0, &buf); - if (r < 0) - return r; - - p = strappend("/run/systemd/sessions/", buf); - free(buf); - } - - if (!p) - return -ENOMEM; - - *_p = p; - return 0; -} - -_public_ int sd_session_is_active(const char *session) { - int r; - char *p, *s = NULL; - - r = file_of_session(session, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, "ACTIVE", &s, NULL); - free(p); - - if (r < 0) { - free(s); - return r; - } - - if (!s) - return -EIO; - - r = parse_boolean(s); - free(s); - - return r; -} - -_public_ int sd_session_get_state(const char *session, char **state) { - char *p, *s = NULL; - int r; - - if (!state) - return -EINVAL; - - r = file_of_session(session, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, "STATE", &s, NULL); - free(p); - - if (r < 0) { - free(s); - return r; - } else if (!s) - return -EIO; - - *state = s; - return 0; -} - -_public_ int sd_session_get_uid(const char *session, uid_t *uid) { - int r; - char *p, *s = NULL; - - if (!uid) - return -EINVAL; - - r = file_of_session(session, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, "UID", &s, NULL); - free(p); - - if (r < 0) { - free(s); - return r; - } - - if (!s) - return -EIO; - - r = parse_uid(s, uid); - free(s); - - return r; -} - -static int session_get_string(const char *session, const char *field, char **value) { - char *p, *s = NULL; - int r; - - if (!value) - return -EINVAL; - - r = file_of_session(session, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, field, &s, NULL); - free(p); - - if (r < 0) { - free(s); - return r; - } - - if (isempty(s)) - return -ENOENT; - - *value = s; - return 0; -} - -_public_ int sd_session_get_seat(const char *session, char **seat) { - return session_get_string(session, "SEAT", seat); -} - -_public_ int sd_session_get_service(const char *session, char **service) { - return session_get_string(session, "SERVICE", service); -} - -_public_ int sd_session_get_type(const char *session, char **type) { - return session_get_string(session, "TYPE", type); -} - -_public_ int sd_session_get_class(const char *session, char **class) { - return session_get_string(session, "CLASS", class); -} - -_public_ int sd_session_get_display(const char *session, char **display) { - return session_get_string(session, "DISPLAY", display); -} - -static int file_of_seat(const char *seat, char **_p) { - char *p; - int r; - - assert(_p); - - if (seat) - p = strappend("/run/systemd/seats/", seat); - else { - char *buf; - - r = sd_session_get_seat(NULL, &buf); - if (r < 0) - return r; - - p = strappend("/run/systemd/seats/", buf); - free(buf); - } - - if (!p) - return -ENOMEM; - - *_p = p; - return 0; -} - -_public_ int sd_seat_get_active(const char *seat, char **session, uid_t *uid) { - char *p, *s = NULL, *t = NULL; - int r; - - if (!session && !uid) - return -EINVAL; - - r = file_of_seat(seat, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, - "ACTIVE", &s, - "ACTIVE_UID", &t, - NULL); - free(p); - - if (r < 0) { - free(s); - free(t); - return r; - } - - if (session && !s) { - free(t); - return -ENOENT; - } - - if (uid && !t) { - free(s); - return -ENOENT; - } - - if (uid && t) { - r = parse_uid(t, uid); - if (r < 0) { - free(t); - free(s); - return r; - } - } - - free(t); - - if (session && s) - *session = s; - else - free(s); - - return 0; -} - -_public_ int sd_seat_get_sessions(const char *seat, char ***sessions, uid_t **uids, unsigned *n_uids) { - char *p, *s = NULL, *t = NULL, **a = NULL; - uid_t *b = NULL; - unsigned n = 0; - int r; - - r = file_of_seat(seat, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, - "SESSIONS", &s, - "ACTIVE_SESSIONS", &t, - NULL); - free(p); - - if (r < 0) { - free(s); - free(t); - return r; - } - - if (s) { - a = strv_split(s, " "); - if (!a) { - free(s); - free(t); - return -ENOMEM; - } - } - - free(s); - - if (uids && t) { - char *w, *state; - size_t l; - - FOREACH_WORD(w, l, t, state) - n++; - - if (n == 0) - b = NULL; - else { - unsigned i = 0; - - b = new(uid_t, n); - if (!b) { - strv_free(a); - return -ENOMEM; - } - - FOREACH_WORD(w, l, t, state) { - char *k; - - k = strndup(w, l); - if (!k) { - free(t); - free(b); - strv_free(a); - return -ENOMEM; - } - - r = parse_uid(k, b + i); - free(k); - if (r < 0) - continue; - - i++; - } - } - } - - free(t); - - r = strv_length(a); - - if (sessions) - *sessions = a; - else - strv_free(a); - - if (uids) - *uids = b; - - if (n_uids) - *n_uids = n; - - return r; -} - -static int seat_get_can(const char *seat, const char *variable) { - char *p, *s = NULL; - int r; - - r = file_of_seat(seat, &p); - if (r < 0) - return r; - - r = parse_env_file(p, NEWLINE, - variable, &s, - NULL); - free(p); - - if (r < 0) { - free(s); - return r; - } - - if (s) { - r = parse_boolean(s); - free(s); - } else - r = 0; - - return r; -} - -_public_ int sd_seat_can_multi_session(const char *seat) { - return seat_get_can(seat, "CAN_MULTI_SESSION"); -} - -_public_ int sd_seat_can_tty(const char *seat) { - return seat_get_can(seat, "CAN_TTY"); -} - -_public_ int sd_seat_can_graphical(const char *seat) { - return seat_get_can(seat, "CAN_GRAPHICAL"); -} - -_public_ int sd_get_seats(char ***seats) { - return get_files_in_directory("/run/systemd/seats/", seats); -} - -_public_ int sd_get_sessions(char ***sessions) { - return get_files_in_directory("/run/systemd/sessions/", sessions); -} - -_public_ int sd_get_uids(uid_t **users) { - DIR *d; - int r = 0; - unsigned n = 0; - uid_t *l = NULL; - - d = opendir("/run/systemd/users/"); - if (!d) - return -errno; - - for (;;) { - struct dirent *de; - union dirent_storage buf; - int k; - uid_t uid; - - k = readdir_r(d, &buf.de, &de); - if (k != 0) { - r = -k; - goto finish; - } - - if (!de) - break; - - dirent_ensure_type(d, de); - - if (!dirent_is_file(de)) - continue; - - k = parse_uid(de->d_name, &uid); - if (k < 0) - continue; - - if (users) { - if ((unsigned) r >= n) { - uid_t *t; - - n = MAX(16, 2*r); - t = realloc(l, sizeof(uid_t) * n); - if (!t) { - r = -ENOMEM; - goto finish; - } - - l = t; - } - - assert((unsigned) r < n); - l[r++] = uid; - } else - r++; - } - -finish: - if (d) - closedir(d); - - if (r >= 0) { - if (users) - *users = l; - } else - free(l); - - return r; -} - -static inline int MONITOR_TO_FD(sd_login_monitor *m) { - return (int) (unsigned long) m - 1; -} - -static inline sd_login_monitor* FD_TO_MONITOR(int fd) { - return (sd_login_monitor*) (unsigned long) (fd + 1); -} - -_public_ int sd_login_monitor_new(const char *category, sd_login_monitor **m) { - int fd, k; - bool good = false; - - if (!m) - return -EINVAL; - - fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); - if (fd < 0) - return errno; - - if (!category || streq(category, "seat")) { - k = inotify_add_watch(fd, "/run/systemd/seats/", IN_MOVED_TO|IN_DELETE); - if (k < 0) { - close_nointr_nofail(fd); - return -errno; - } - - good = true; - } - - if (!category || streq(category, "session")) { - k = inotify_add_watch(fd, "/run/systemd/sessions/", IN_MOVED_TO|IN_DELETE); - if (k < 0) { - close_nointr_nofail(fd); - return -errno; - } - - good = true; - } - - if (!category || streq(category, "uid")) { - k = inotify_add_watch(fd, "/run/systemd/users/", IN_MOVED_TO|IN_DELETE); - if (k < 0) { - close_nointr_nofail(fd); - return -errno; - } - - good = true; - } - - if (!good) { - close_nointr(fd); - return -EINVAL; - } - - *m = FD_TO_MONITOR(fd); - return 0; -} - -_public_ sd_login_monitor* sd_login_monitor_unref(sd_login_monitor *m) { - int fd; - - if (!m) - return NULL; - - fd = MONITOR_TO_FD(m); - close_nointr(fd); - - return NULL; -} - -_public_ int sd_login_monitor_flush(sd_login_monitor *m) { - - if (!m) - return -EINVAL; - - return flush_fd(MONITOR_TO_FD(m)); -} - -_public_ int sd_login_monitor_get_fd(sd_login_monitor *m) { - - if (!m) - return -EINVAL; - - return MONITOR_TO_FD(m); -} diff --git a/src/udev/sd-login.h b/src/udev/sd-login.h deleted file mode 100644 index 6bd1f2da4a..0000000000 --- a/src/udev/sd-login.h +++ /dev/null @@ -1,160 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#ifndef foosdloginhfoo -#define foosdloginhfoo - -/*** - This file is part of systemd. - - Copyright 2011 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 <http://www.gnu.org/licenses/>. -***/ - -#include <sys/types.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * A few points: - * - * Instead of returning an empty string array or empty uid array, we - * may return NULL. - * - * Free the data the library returns with libc free(). String arrays - * are NULL terminated and you need to free the array itself in - * addition to the strings contained. - * - * We return error codes as negative errno, kernel-style. 0 or - * positive on success. - * - * These functions access data in /proc, /sys/fs/cgroup and /run. All - * of these are virtual file systems, hence the accesses are - * relatively cheap. - * - * See sd-login(3) for more information. - */ - -/* Get session from PID. Note that 'shared' processes of a user are - * not attached to a session, but only attached to a user. This will - * return an error for system processes and 'shared' processes of a - * user. */ -int sd_pid_get_session(pid_t pid, char **session); - -/* Get UID of the owner of the session of the PID (or in case the - * process is a 'shared' user process the UID of that user is - * returned). This will not return the UID of the process, but rather - * the UID of the owner of the cgroup the process is in. This will - * return an error for system processes. */ -int sd_pid_get_owner_uid(pid_t pid, uid_t *uid); - -/* Get systemd unit (i.e. service) name from PID. This will return an - * error for non-service processes. */ -int sd_pid_get_unit(pid_t, char **unit); - -/* Get state from uid. Possible states: offline, lingering, online, active, closing */ -int sd_uid_get_state(uid_t uid, char**state); - -/* Return 1 if uid has session on seat. If require_active is true will - * look for active sessions only. */ -int sd_uid_is_on_seat(uid_t uid, int require_active, const char *seat); - -/* Return sessions of user. If require_active is true will look for - * active sessions only. Returns number of sessions as return - * value. If sessions is NULL will just return number of sessions. */ -int sd_uid_get_sessions(uid_t uid, int require_active, char ***sessions); - -/* Return seats of user is on. If require_active is true will look for - * active seats only. Returns number of seats. If seats is NULL will - * just return number of seats.*/ -int sd_uid_get_seats(uid_t uid, int require_active, char ***seats); - -/* Return 1 if the session is a active. */ -int sd_session_is_active(const char *session); - -/* Get state from session. Possible states: online, active, closing - * (This function is a more generic version of - * sd_session_is_active().) */ -int sd_session_get_state(const char *sessio, char **state); - -/* Determine user id of session */ -int sd_session_get_uid(const char *session, uid_t *uid); - -/* Determine seat of session */ -int sd_session_get_seat(const char *session, char **seat); - -/* Determine the (PAM) service name this session was registered by. */ -int sd_session_get_service(const char *session, char **service); - -/* Determine the type of this session, i.e. one of "tty", "x11" or "unspecified". */ -int sd_session_get_type(const char *session, char **type); - -/* Determine the class of this session, i.e. one of "user", "greeter" or "lock-screen". */ -int sd_session_get_class(const char *session, char **clazz); - -/* Determine the X11 display of this session. */ -int sd_session_get_display(const char *session, char **display); - -/* Return active session and user of seat */ -int sd_seat_get_active(const char *seat, char **session, uid_t *uid); - -/* Return sessions and users on seat. Returns number of sessions as - * return value. If sessions is NULL returns only the number of - * sessions. */ -int sd_seat_get_sessions(const char *seat, char ***sessions, uid_t **uid, unsigned *n_uids); - -/* Return whether the seat is multi-session capable */ -int sd_seat_can_multi_session(const char *seat); - -/* Return whether the seat is TTY capable, i.e. suitable for showing console UIs */ -int sd_seat_can_tty(const char *seat); - -/* Return whether the seat is graphics capable, i.e. suitable for showing graphical UIs */ -int sd_seat_can_graphical(const char *seat); - -/* Get all seats, store in *seats. Returns the number of seats. If - * seats is NULL only returns number of seats. */ -int sd_get_seats(char ***seats); - -/* Get all sessions, store in *sessions. Returns the number of - * sessions. If sessions is NULL only returns number of sessions. */ -int sd_get_sessions(char ***sessions); - -/* Get all logged in users, store in *users. Returns the number of - * users. If users is NULL only returns the number of users. */ -int sd_get_uids(uid_t **users); - -/* Monitor object */ -typedef struct sd_login_monitor sd_login_monitor; - -/* Create a new monitor. Category must be NULL, "seat", "session", - * "uid" to get monitor events for the specific category (or all). */ -int sd_login_monitor_new(const char *category, sd_login_monitor** ret); - -/* Destroys the passed monitor. Returns NULL. */ -sd_login_monitor* sd_login_monitor_unref(sd_login_monitor *m); - -/* Flushes the monitor */ -int sd_login_monitor_flush(sd_login_monitor *m); - -/* Get FD from monitor */ -int sd_login_monitor_get_fd(sd_login_monitor *m); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/udev/udev-builtin-uaccess.c b/src/udev/udev-builtin-uaccess.c deleted file mode 100644 index 2b9424c882..0000000000 --- a/src/udev/udev-builtin-uaccess.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * manage device node user ACL - * - * Copyright 2010-2012 Kay Sievers <kay@vrfy.org> - * Copyright 2010 Lennart Poettering - * - * This program 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. - * - * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <unistd.h> -#include <string.h> -#include <ctype.h> -#include <fcntl.h> -#include <errno.h> -#include <dirent.h> -#include <getopt.h> - -//#include <systemd/sd-daemon.h> -//#include <systemd/sd-login.h> -//#include "logind-acl.h" -#include "udev.h" -#include "util.h" - -static int builtin_uaccess(struct udev_device *dev, int argc, char *argv[], bool test) -{ - int r; - const char *path = NULL, *seat; - bool changed_acl = false; - uid_t uid; - - log_set_target(LOG_TARGET_AUTO); - log_open(); - - umask(0022); - - /* don't muck around with ACLs when the system is not running systemd */ - if (!sd_booted()) - return 0; - - path = udev_device_get_devnode(dev); - seat = udev_device_get_property_value(dev, "ID_SEAT"); - if (!seat) - seat = "seat0"; - - r = sd_seat_get_active(seat, NULL, &uid); - if (r == -ENOENT) { - /* No active session on this seat */ - r = 0; - goto finish; - } else if (r < 0) { - log_error("Failed to determine active user on seat %s.", seat); - goto finish; - } - - r = devnode_acl(path, true, false, 0, true, uid); - if (r < 0) { - log_error("Failed to apply ACL on %s: %s", path, strerror(-r)); - goto finish; - } - - changed_acl = true; - r = 0; - -finish: - if (path && !changed_acl) { - int k; - - /* Better be safe than sorry and reset ACL */ - k = devnode_acl(path, true, false, 0, false, 0); - if (k < 0) { - log_error("Failed to apply ACL on %s: %s", path, strerror(-k)); - if (r >= 0) - r = k; - } - } - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} - -const struct udev_builtin udev_builtin_uaccess = { - .name = "uaccess", - .cmd = builtin_uaccess, - .help = "manage device node user ACL", -}; diff --git a/src/udev/udev-builtin.c b/src/udev/udev-builtin.c index 45494147eb..d53663f0a4 100644 --- a/src/udev/udev-builtin.c +++ b/src/udev/udev-builtin.c @@ -41,9 +41,6 @@ static const struct udev_builtin *builtins[] = { [UDEV_BUILTIN_NET_ID] = &udev_builtin_net_id, [UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id, [UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id, -#ifdef HAVE_ACL - [UDEV_BUILTIN_UACCESS] = &udev_builtin_uaccess, -#endif }; void udev_builtin_init(struct udev *udev) diff --git a/src/udev/udev.h b/src/udev/udev.h index 4c2861009f..2093af16bf 100644 --- a/src/udev/udev.h +++ b/src/udev/udev.h @@ -145,9 +145,6 @@ enum udev_builtin_cmd { UDEV_BUILTIN_NET_ID, UDEV_BUILTIN_PATH_ID, UDEV_BUILTIN_USB_ID, -#ifdef HAVE_ACL - UDEV_BUILTIN_UACCESS, -#endif UDEV_BUILTIN_MAX }; struct udev_builtin { @@ -170,7 +167,6 @@ extern const struct udev_builtin udev_builtin_kmod; extern const struct udev_builtin udev_builtin_net_id; extern const struct udev_builtin udev_builtin_path_id; extern const struct udev_builtin udev_builtin_usb_id; -extern const struct udev_builtin udev_builtin_uaccess; void udev_builtin_init(struct udev *udev); void udev_builtin_exit(struct udev *udev); enum udev_builtin_cmd udev_builtin_lookup(const char *command); diff --git a/src/udev/udevd.c b/src/udev/udevd.c index 77b0f66ef5..220885b8ee 100644 --- a/src/udev/udevd.c +++ b/src/udev/udevd.c @@ -46,7 +46,6 @@ #include "udev.h" #include "def.h" -#include "sd-daemon.h" #include "cgroup-util.h" #include "dev-setup.h" @@ -980,42 +979,6 @@ static int convert_db(struct udev *udev) return 0; } -static int systemd_fds(struct udev *udev, int *rctrl, int *rnetlink) -{ - int ctrl = -1, netlink = -1; - int fd, n; - - n = sd_listen_fds(true); - if (n <= 0) - return -1; - - for (fd = SD_LISTEN_FDS_START; fd < n + SD_LISTEN_FDS_START; fd++) { - if (sd_is_socket(fd, AF_LOCAL, SOCK_SEQPACKET, -1)) { - if (ctrl >= 0) - return -1; - ctrl = fd; - continue; - } - - if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1)) { - if (netlink >= 0) - return -1; - netlink = fd; - continue; - } - - return -1; - } - - if (ctrl < 0 || netlink < 0) - return -1; - - log_debug("ctrl=%i netlink=%i\n", ctrl, netlink); - *rctrl = ctrl; - *rnetlink = netlink; - return 0; -} - /* * read the kernel commandline, in case we need to get into debug mode * udev.log-priority=<level> syslog priority @@ -1187,45 +1150,24 @@ int main(int argc, char *argv[]) } } - if (systemd_fds(udev, &fd_ctrl, &fd_netlink) >= 0) { - /* get control and netlink socket from systemd */ - udev_ctrl = udev_ctrl_new_from_fd(udev, fd_ctrl); - if (udev_ctrl == NULL) { - log_error("error taking over udev control socket"); - rc = 1; - goto exit; - } - - monitor = udev_monitor_new_from_netlink_fd(udev, "kernel", fd_netlink); - if (monitor == NULL) { - log_error("error taking over netlink socket\n"); - rc = 3; - goto exit; - } - - /* get our own cgroup, we regularly kill everything udev has left behind */ - if (cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 0, &udev_cgroup) < 0) - udev_cgroup = NULL; - } else { - /* open control and netlink socket */ - udev_ctrl = udev_ctrl_new(udev); - if (udev_ctrl == NULL) { - fprintf(stderr, "error initializing udev control socket"); - log_error("error initializing udev control socket"); - rc = 1; - goto exit; - } - fd_ctrl = udev_ctrl_get_fd(udev_ctrl); + /* open control and netlink socket */ + udev_ctrl = udev_ctrl_new(udev); + if (udev_ctrl == NULL) { + fprintf(stderr, "error initializing udev control socket"); + log_error("error initializing udev control socket"); + rc = 1; + goto exit; + } + fd_ctrl = udev_ctrl_get_fd(udev_ctrl); - monitor = udev_monitor_new_from_netlink(udev, "kernel"); - if (monitor == NULL) { - fprintf(stderr, "error initializing netlink socket\n"); - log_error("error initializing netlink socket\n"); - rc = 3; - goto exit; - } - fd_netlink = udev_monitor_get_fd(monitor); + monitor = udev_monitor_new_from_netlink(udev, "kernel"); + if (monitor == NULL) { + fprintf(stderr, "error initializing netlink socket\n"); + log_error("error initializing netlink socket\n"); + rc = 3; + goto exit; } + fd_netlink = udev_monitor_get_fd(monitor); if (udev_monitor_enable_receiving(monitor) < 0) { fprintf(stderr, "error binding netlink socket\n"); @@ -1269,8 +1211,6 @@ int main(int argc, char *argv[]) setsid(); write_one_line_file("/proc/self/oom_score_adj", "-1000"); - } else { - sd_notify(1, "READY=1"); } print_kmsg("starting eudev version " VERSION "\n"); |