+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2011 Lennart Poettering
- Copyright 2014 Tom Gundersen
-
- 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 <string.h>
-#include <errno.h>
-#include <sys/inotify.h>
-#include <poll.h>
-
-#include "util.h"
-#include "macro.h"
-#include "strv.h"
-#include "fileio.h"
-#include "sd-network.h"
-
-_public_ int sd_network_get_operational_state(char **state) {
- _cleanup_free_ char *s = NULL;
- int r;
-
- assert_return(state, -EINVAL);
-
- r = parse_env_file("/run/systemd/netif/state", NEWLINE, "OPER_STATE", &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s))
- return -ENODATA;
-
- *state = s;
- s = NULL;
-
- return 0;
-}
-
-static int network_get_strv(const char *key, char ***ret) {
- _cleanup_strv_free_ char **a = NULL;
- _cleanup_free_ char *s = NULL;
- int r;
-
- assert_return(ret, -EINVAL);
-
- r = parse_env_file("/run/systemd/netif/state", NEWLINE, key, &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s)) {
- *ret = NULL;
- return 0;
- }
-
- a = strv_split(s, " ");
- if (!a)
- return -ENOMEM;
-
- strv_uniq(a);
- r = strv_length(a);
-
- *ret = a;
- a = NULL;
-
- return r;
-}
-
-_public_ int sd_network_get_dns(char ***ret) {
- return network_get_strv("DNS", ret);
-}
-
-_public_ int sd_network_get_ntp(char ***ret) {
- return network_get_strv("NTP", ret);
-}
-
-_public_ int sd_network_get_domains(char ***ret) {
- return network_get_strv("DOMAINS", ret);
-}
-
-_public_ int sd_network_link_get_setup_state(int ifindex, char **state) {
- _cleanup_free_ char *s = NULL, *p = NULL;
- int r;
-
- assert_return(ifindex > 0, -EINVAL);
- assert_return(state, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, "ADMIN_STATE", &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s))
- return -ENODATA;
-
- *state = s;
- s = NULL;
-
- return 0;
-}
-
-_public_ int sd_network_link_get_network_file(int ifindex, char **filename) {
- _cleanup_free_ char *s = NULL, *p = NULL;
- int r;
-
- assert_return(ifindex > 0, -EINVAL);
- assert_return(filename, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, "NETWORK_FILE", &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s))
- return -ENODATA;
-
- *filename = s;
- s = NULL;
-
- return 0;
-}
-
-_public_ int sd_network_link_get_operational_state(int ifindex, char **state) {
- _cleanup_free_ char *s = NULL, *p = NULL;
- int r;
-
- assert_return(ifindex > 0, -EINVAL);
- assert_return(state, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, "OPER_STATE", &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s))
- return -ENODATA;
-
- *state = s;
- s = NULL;
-
- return 0;
-}
-
-_public_ int sd_network_link_get_llmnr(int ifindex, char **llmnr) {
- _cleanup_free_ char *s = NULL, *p = NULL;
- int r;
-
- assert_return(ifindex > 0, -EINVAL);
- assert_return(llmnr, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, "LLMNR", &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s))
- return -ENODATA;
-
- *llmnr = s;
- s = NULL;
-
- return 0;
-}
-
-_public_ int sd_network_link_get_lldp(int ifindex, char **lldp) {
- _cleanup_free_ char *s = NULL, *p = NULL;
- size_t size;
- int r;
-
- assert_return(ifindex > 0, -EINVAL);
- assert_return(lldp, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/lldp/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = read_full_file(p, &s, &size);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (size <= 0)
- return -ENODATA;
-
- *lldp = s;
- s = NULL;
-
- return 0;
-}
-
-
-static int network_get_link_strv(const char *key, int ifindex, char ***ret) {
- _cleanup_free_ char *p = NULL, *s = NULL;
- _cleanup_strv_free_ char **a = NULL;
- int r;
-
- assert_return(ifindex > 0, -EINVAL);
- assert_return(ret, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, key, &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s)) {
- *ret = NULL;
- return 0;
- }
-
- a = strv_split(s, " ");
- if (!a)
- return -ENOMEM;
-
- strv_uniq(a);
- r = strv_length(a);
-
- *ret = a;
- a = NULL;
-
- return r;
-}
-
-_public_ int sd_network_link_get_dns(int ifindex, char ***ret) {
- return network_get_link_strv("DNS", ifindex, ret);
-}
-
-_public_ int sd_network_link_get_ntp(int ifindex, char ***ret) {
- return network_get_link_strv("NTP", ifindex, ret);
-}
-
-_public_ int sd_network_link_get_domains(int ifindex, char ***ret) {
- return network_get_link_strv("DOMAINS", ifindex, ret);
-}
-
-_public_ int sd_network_link_get_carrier_bound_to(int ifindex, char ***ret) {
- return network_get_link_strv("CARRIER_BOUND_TO", ifindex, ret);
-}
-
-_public_ int sd_network_link_get_carrier_bound_by(int ifindex, char ***ret) {
- return network_get_link_strv("CARRIER_BOUND_BY", ifindex, ret);
-}
-
-_public_ int sd_network_link_get_wildcard_domain(int ifindex) {
- int r;
- _cleanup_free_ char *p = NULL, *s = NULL;
-
- assert_return(ifindex > 0, -EINVAL);
-
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, "WILDCARD_DOMAIN", &s, NULL);
- if (r == -ENOENT)
- return -ENODATA;
- if (r < 0)
- return r;
- if (isempty(s))
- return -ENODATA;
-
- return parse_boolean(s);
-}
-
-static inline int MONITOR_TO_FD(sd_network_monitor *m) {
- return (int) (unsigned long) m - 1;
-}
-
-static inline sd_network_monitor* FD_TO_MONITOR(int fd) {
- return (sd_network_monitor*) (unsigned long) (fd + 1);
-}
-
-_public_ int sd_network_monitor_new(sd_network_monitor **m, const char *category) {
- int fd, k;
- bool good = false;
-
- assert_return(m, -EINVAL);
-
- fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
- if (fd < 0)
- return -errno;
-
- if (!category || streq(category, "links")) {
- k = inotify_add_watch(fd, "/run/systemd/netif/links/", IN_MOVED_TO|IN_DELETE);
- if (k < 0) {
- safe_close(fd);
- return -errno;
- }
-
- good = true;
- }
-
- if (!good) {
- close_nointr(fd);
- return -EINVAL;
- }
-
- *m = FD_TO_MONITOR(fd);
- return 0;
-}
-
-_public_ sd_network_monitor* sd_network_monitor_unref(sd_network_monitor *m) {
- int fd;
-
- assert_return(m, NULL);
-
- fd = MONITOR_TO_FD(m);
- close_nointr(fd);
-
- return NULL;
-}
-
-_public_ int sd_network_monitor_flush(sd_network_monitor *m) {
-
- assert_return(m, -EINVAL);
-
- return flush_fd(MONITOR_TO_FD(m));
-}
-
-_public_ int sd_network_monitor_get_fd(sd_network_monitor *m) {
-
- assert_return(m, -EINVAL);
-
- return MONITOR_TO_FD(m);
-}
-
-_public_ int sd_network_monitor_get_events(sd_network_monitor *m) {
-
- assert_return(m, -EINVAL);
-
- /* For now we will only return POLLIN here, since we don't
- * need anything else ever for inotify. However, let's have
- * this API to keep our options open should we later on need
- * it. */
- return POLLIN;
-}
-
-_public_ int sd_network_monitor_get_timeout(sd_network_monitor *m, uint64_t *timeout_usec) {
-
- assert_return(m, -EINVAL);
- assert_return(timeout_usec, -EINVAL);
-
- /* For now we will only return (uint64_t) -1, since we don't
- * need any timeout. However, let's have this API to keep our
- * options open should we later on need it. */
- *timeout_usec = (uint64_t) -1;
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff