--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <unistd.h>
+
+#include "sd-daemon.h"
+#include "sd-device.h"
+#include "sd-netlink.h"
+#include "sd-network.h"
+
+#include "bus-error.h"
+#include "bus-locator.h"
+#include "bus-util.h"
+#include "bus-wait-for-jobs.h"
+#include "conf-files.h"
+#include "edit-util.h"
+#include "netlink-util.h"
+#include "networkctl.h"
+#include "networkctl-config-file.h"
+#include "pager.h"
+#include "path-lookup.h"
+#include "path-util.h"
+#include "pretty-print.h"
+#include "selinux-util.h"
+#include "strv.h"
+#include "virt.h"
+
+typedef enum ReloadFlags {
+ RELOAD_NETWORKD = 1 << 0,
+ RELOAD_UDEVD = 1 << 1,
+} ReloadFlags;
+
+static int get_config_files_by_name(const char *name, char **ret_path, char ***ret_dropins) {
+ _cleanup_free_ char *path = NULL;
+ int r;
+
+ assert(name);
+ assert(ret_path);
+
+ STRV_FOREACH(i, NETWORK_DIRS) {
+ _cleanup_free_ char *p = NULL;
+
+ p = path_join(*i, name);
+ if (!p)
+ return -ENOMEM;
+
+ r = RET_NERRNO(access(p, F_OK));
+ if (r >= 0) {
+ path = TAKE_PTR(p);
+ break;
+ }
+
+ if (r != -ENOENT)
+ log_debug_errno(r, "Failed to determine whether '%s' exists, ignoring: %m", p);
+ }
+
+ if (!path)
+ return -ENOENT;
+
+ if (ret_dropins) {
+ _cleanup_free_ char *dropin_dirname = NULL;
+
+ dropin_dirname = strjoin(name, ".d");
+ if (!dropin_dirname)
+ return -ENOMEM;
+
+ r = conf_files_list_dropins(ret_dropins, dropin_dirname, /* root = */ NULL, NETWORK_DIRS);
+ if (r < 0)
+ return r;
+ }
+
+ *ret_path = TAKE_PTR(path);
+
+ return 0;
+}
+
+static int get_dropin_by_name(
+ const char *name,
+ char * const *dropins,
+ char **ret) {
+
+ assert(name);
+ assert(ret);
+
+ STRV_FOREACH(i, dropins)
+ if (path_equal_filename(*i, name)) {
+ _cleanup_free_ char *d = NULL;
+
+ d = strdup(*i);
+ if (!d)
+ return -ENOMEM;
+
+ *ret = TAKE_PTR(d);
+ return 1;
+ }
+
+ *ret = NULL;
+ return 0;
+}
+
+static int get_network_files_by_link(
+ sd_netlink **rtnl,
+ const char *link,
+ char **ret_path,
+ char ***ret_dropins) {
+
+ _cleanup_strv_free_ char **dropins = NULL;
+ _cleanup_free_ char *path = NULL;
+ int r, ifindex;
+
+ assert(rtnl);
+ assert(link);
+ assert(ret_path);
+ assert(ret_dropins);
+
+ ifindex = rtnl_resolve_interface_or_warn(rtnl, link);
+ if (ifindex < 0)
+ return ifindex;
+
+ r = sd_network_link_get_network_file(ifindex, &path);
+ if (r == -ENODATA)
+ return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
+ "Link '%s' has no associated network file.", link);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get network file for link '%s': %m", link);
+
+ r = sd_network_link_get_network_file_dropins(ifindex, &dropins);
+ if (r < 0 && r != -ENODATA)
+ return log_error_errno(r, "Failed to get network drop-ins for link '%s': %m", link);
+
+ *ret_path = TAKE_PTR(path);
+ *ret_dropins = TAKE_PTR(dropins);
+
+ return 0;
+}
+
+static int get_link_files_by_link(const char *link, char **ret_path, char ***ret_dropins) {
+ _cleanup_(sd_device_unrefp) sd_device *device = NULL;
+ _cleanup_strv_free_ char **dropins_split = NULL;
+ _cleanup_free_ char *p = NULL;
+ const char *path, *dropins;
+ int r;
+
+ assert(link);
+ assert(ret_path);
+ assert(ret_dropins);
+
+ r = sd_device_new_from_ifname(&device, link);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create sd-device object for link '%s': %m", link);
+
+ r = sd_device_get_property_value(device, "ID_NET_LINK_FILE", &path);
+ if (r == -ENOENT)
+ return log_error_errno(r, "Link '%s' has no associated link file.", link);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get link file for link '%s': %m", link);
+
+ r = sd_device_get_property_value(device, "ID_NET_LINK_FILE_DROPINS", &dropins);
+ if (r < 0 && r != -ENOENT)
+ return log_error_errno(r, "Failed to get link drop-ins for link '%s': %m", link);
+ if (r >= 0) {
+ r = strv_split_full(&dropins_split, dropins, ":", EXTRACT_CUNESCAPE);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse link drop-ins for link '%s': %m", link);
+ }
+
+ p = strdup(path);
+ if (!p)
+ return log_oom();
+
+ *ret_path = TAKE_PTR(p);
+ *ret_dropins = TAKE_PTR(dropins_split);
+
+ return 0;
+}
+
+static int get_config_files_by_link_config(
+ const char *link_config,
+ sd_netlink **rtnl,
+ char **ret_path,
+ char ***ret_dropins,
+ ReloadFlags *ret_reload) {
+
+ _cleanup_strv_free_ char **dropins = NULL, **link_config_split = NULL;
+ _cleanup_free_ char *path = NULL;
+ const char *ifname, *type;
+ ReloadFlags reload;
+ size_t n;
+ int r;
+
+ assert(link_config);
+ assert(rtnl);
+ assert(ret_path);
+ assert(ret_dropins);
+
+ link_config_split = strv_split(link_config, ":");
+ if (!link_config_split)
+ return log_oom();
+
+ n = strv_length(link_config_split);
+ if (n == 0 || isempty(link_config_split[0]))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No link name is given.");
+ if (n > 2)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid link config '%s'.", link_config);
+
+ ifname = link_config_split[0];
+ type = n == 2 ? link_config_split[1] : "network";
+
+ if (streq(type, "network")) {
+ if (!networkd_is_running())
+ return log_error_errno(SYNTHETIC_ERRNO(ESRCH),
+ "Cannot get network file for link if systemd-networkd is not running.");
+
+ r = get_network_files_by_link(rtnl, ifname, &path, &dropins);
+ if (r < 0)
+ return r;
+
+ reload = RELOAD_NETWORKD;
+ } else if (streq(type, "link")) {
+ r = get_link_files_by_link(ifname, &path, &dropins);
+ if (r < 0)
+ return r;
+
+ reload = RELOAD_UDEVD;
+ } else
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Invalid config type '%s' for link '%s'.", type, ifname);
+
+ *ret_path = TAKE_PTR(path);
+ *ret_dropins = TAKE_PTR(dropins);
+
+ if (ret_reload)
+ *ret_reload = reload;
+
+ return 0;
+}
+
+static int add_config_to_edit(
+ EditFileContext *context,
+ const char *path,
+ char * const *dropins) {
+
+ _cleanup_free_ char *new_path = NULL, *dropin_path = NULL, *old_dropin = NULL;
+ _cleanup_strv_free_ char **comment_paths = NULL;
+ int r;
+
+ assert(context);
+ assert(path);
+
+ /* If we're supposed to edit main config file in /run/, but a config with the same name is present
+ * under /etc/, we bail out since the one in /etc/ always overrides that in /run/. */
+ if (arg_runtime && !arg_drop_in && path_startswith(path, "/etc"))
+ return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
+ "Cannot edit runtime config file: overridden by %s", path);
+
+ if (path_startswith(path, "/usr") || arg_runtime != !!path_startswith(path, "/run")) {
+ _cleanup_free_ char *name = NULL;
+
+ r = path_extract_filename(path, &name);
+ if (r < 0)
+ return log_error_errno(r, "Failed to extract filename from '%s': %m", path);
+
+ new_path = path_join(NETWORK_DIRS[arg_runtime ? 1 : 0], name);
+ if (!new_path)
+ return log_oom();
+ }
+
+ if (!arg_drop_in)
+ return edit_files_add(context, new_path ?: path, path, NULL);
+
+ bool need_new_dropin;
+
+ r = get_dropin_by_name(arg_drop_in, dropins, &old_dropin);
+ if (r < 0)
+ return log_error_errno(r, "Failed to acquire drop-in '%s': %m", arg_drop_in);
+ if (r > 0) {
+ /* See the explanation above */
+ if (arg_runtime && path_startswith(old_dropin, "/etc"))
+ return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
+ "Cannot edit runtime config file: overridden by %s", old_dropin);
+
+ need_new_dropin = path_startswith(old_dropin, "/usr") || arg_runtime != !!path_startswith(old_dropin, "/run");
+ } else
+ need_new_dropin = true;
+
+ if (!need_new_dropin)
+ /* An existing drop-in is found in the correct scope. Let's edit it directly. */
+ dropin_path = TAKE_PTR(old_dropin);
+ else {
+ /* No drop-in was found or an existing drop-in is in a different scope. Let's create a new
+ * drop-in file. */
+ dropin_path = strjoin(new_path ?: path, ".d/", arg_drop_in);
+ if (!dropin_path)
+ return log_oom();
+ }
+
+ comment_paths = strv_new(path);
+ if (!comment_paths)
+ return log_oom();
+
+ r = strv_extend_strv(&comment_paths, dropins, /* filter_duplicates = */ false);
+ if (r < 0)
+ return log_oom();
+
+ return edit_files_add(context, dropin_path, old_dropin, comment_paths);
+}
+
+static int udevd_reload(sd_bus *bus) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
+ const char *job_path;
+ int r;
+
+ assert(bus);
+
+ r = bus_wait_for_jobs_new(bus, &w);
+ if (r < 0)
+ return log_error_errno(r, "Could not watch jobs: %m");
+
+ r = bus_call_method(bus,
+ bus_systemd_mgr,
+ "ReloadUnit",
+ &error,
+ &reply,
+ "ss",
+ "systemd-udevd.service",
+ "replace");
+ if (r < 0)
+ return log_error_errno(r, "Failed to reload systemd-udevd: %s", bus_error_message(&error, r));
+
+ r = sd_bus_message_read(reply, "o", &job_path);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ r = bus_wait_for_jobs_one(w, job_path, /* flags = */ 0, NULL);
+ if (r == -ENOEXEC) {
+ log_debug("systemd-udevd is not running, skipping reload.");
+ return 0;
+ }
+ if (r < 0)
+ return log_error_errno(r, "Failed to reload systemd-udevd: %m");
+
+ return 1;
+}
+
+int verb_edit(int argc, char *argv[], void *userdata) {
+ _cleanup_(edit_file_context_done) EditFileContext context = {
+ .marker_start = DROPIN_MARKER_START,
+ .marker_end = DROPIN_MARKER_END,
+ .remove_parent = !!arg_drop_in,
+ };
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ ReloadFlags reload = 0;
+ int r;
+
+ if (!on_tty())
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit network config files if not on a tty.");
+
+ r = mac_selinux_init();
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(name, strv_skip(argv, 1)) {
+ _cleanup_strv_free_ char **dropins = NULL;
+ _cleanup_free_ char *path = NULL;
+ const char *link_config;
+
+ link_config = startswith(*name, "@");
+ if (link_config) {
+ ReloadFlags flags;
+
+ r = get_config_files_by_link_config(link_config, &rtnl, &path, &dropins, &flags);
+ if (r < 0)
+ return r;
+
+ reload |= flags;
+
+ r = add_config_to_edit(&context, path, dropins);
+ if (r < 0)
+ return r;
+
+ continue;
+ }
+
+ if (ENDSWITH_SET(*name, ".network", ".netdev"))
+ reload |= RELOAD_NETWORKD;
+ else if (endswith(*name, ".link"))
+ reload |= RELOAD_UDEVD;
+ else
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid network config name '%s'.", *name);
+
+ r = get_config_files_by_name(*name, &path, &dropins);
+ if (r == -ENOENT) {
+ if (arg_drop_in)
+ return log_error_errno(r, "Cannot find network config '%s'.", *name);
+
+ log_debug("No existing network config '%s' found, creating a new file.", *name);
+
+ path = path_join(NETWORK_DIRS[arg_runtime ? 1 : 0], *name);
+ if (!path)
+ return log_oom();
+
+ r = edit_files_add(&context, path, NULL, NULL);
+ if (r < 0)
+ return r;
+ continue;
+ }
+ if (r < 0)
+ return log_error_errno(r, "Failed to get the path of network config '%s': %m", *name);
+
+ r = add_config_to_edit(&context, path, dropins);
+ if (r < 0)
+ return r;
+ }
+
+ r = do_edit_files_and_install(&context);
+ if (r < 0)
+ return r;
+
+ if (arg_no_reload)
+ return 0;
+
+ if (!sd_booted() || running_in_chroot() > 0) {
+ log_debug("System is not booted with systemd or is running in chroot, skipping reload.");
+ return 0;
+ }
+
+ _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+
+ r = sd_bus_open_system(&bus);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to system bus: %m");
+
+ if (FLAGS_SET(reload, RELOAD_UDEVD)) {
+ r = udevd_reload(bus);
+ if (r < 0)
+ return r;
+ }
+
+ if (FLAGS_SET(reload, RELOAD_NETWORKD)) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ if (!networkd_is_running()) {
+ log_debug("systemd-networkd is not running, skipping reload.");
+ return 0;
+ }
+
+ r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to reload systemd-networkd: %s", bus_error_message(&error, r));
+ }
+
+ return 0;
+}
+
+int verb_cat(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ int r, ret = 0;
+
+ pager_open(arg_pager_flags);
+
+ STRV_FOREACH(name, strv_skip(argv, 1)) {
+ _cleanup_strv_free_ char **dropins = NULL;
+ _cleanup_free_ char *path = NULL;
+ const char *link_config;
+
+ link_config = startswith(*name, "@");
+ if (link_config) {
+ r = get_config_files_by_link_config(link_config, &rtnl, &path, &dropins, /* ret_reload = */ NULL);
+ if (r < 0)
+ return RET_GATHER(ret, r);
+ } else {
+ r = get_config_files_by_name(*name, &path, &dropins);
+ if (r == -ENOENT) {
+ RET_GATHER(ret, log_error_errno(r, "Cannot find network config file '%s'.", *name));
+ continue;
+ }
+ if (r < 0) {
+ log_error_errno(r, "Failed to get the path of network config '%s': %m", *name);
+ return RET_GATHER(ret, r);
+ }
+ }
+
+ r = cat_files(path, dropins, /* flags = */ CAT_FORMAT_HAS_SECTIONS);
+ if (r < 0)
+ return RET_GATHER(ret, r);
+ }
+
+ return ret;
+}
#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-locator.h"
-#include "bus-wait-for-jobs.h"
-#include "conf-files.h"
#include "device-util.h"
-#include "edit-util.h"
#include "escape.h"
#include "ether-addr-util.h"
#include "ethtool-util.h"
#include "netlink-util.h"
#include "network-internal.h"
#include "network-util.h"
+#include "networkctl.h"
+#include "networkctl-config-file.h"
#include "pager.h"
#include "parse-argument.h"
#include "parse-util.h"
#include "udev-util.h"
#include "unit-def.h"
#include "verbs.h"
-#include "virt.h"
#include "wifi-util.h"
/* Kernel defines MODULE_NAME_LEN as 64 - sizeof(unsigned long). So, 64 is enough. */
/* use 128 kB for receive socket kernel queue, we shouldn't need more here */
#define RCVBUF_SIZE (128*1024)
-static PagerFlags arg_pager_flags = 0;
-static bool arg_legend = true;
-static bool arg_no_reload = false;
-static bool arg_all = false;
-static bool arg_stats = false;
-static bool arg_full = false;
-static bool arg_runtime = false;
-static unsigned arg_lines = 10;
-static char *arg_drop_in = NULL;
-static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
+PagerFlags arg_pager_flags = 0;
+bool arg_legend = true;
+bool arg_no_reload = false;
+bool arg_all = false;
+bool arg_stats = false;
+bool arg_full = false;
+bool arg_runtime = false;
+unsigned arg_lines = 10;
+char *arg_drop_in = NULL;
+JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
STATIC_DESTRUCTOR_REGISTER(arg_drop_in, freep);
return 0;
}
-static bool networkd_is_running(void) {
+bool networkd_is_running(void) {
static int cached = -1;
int r;
return cached;
}
-static int acquire_bus(sd_bus **ret) {
+int acquire_bus(sd_bus **ret) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r;
return 0;
}
-typedef enum ReloadFlags {
- RELOAD_NETWORKD = 1 << 0,
- RELOAD_UDEVD = 1 << 1,
-} ReloadFlags;
-
-static int get_config_files_by_name(const char *name, char **ret_path, char ***ret_dropins) {
- _cleanup_free_ char *path = NULL;
- int r;
-
- assert(name);
- assert(ret_path);
-
- STRV_FOREACH(i, NETWORK_DIRS) {
- _cleanup_free_ char *p = NULL;
-
- p = path_join(*i, name);
- if (!p)
- return -ENOMEM;
-
- r = RET_NERRNO(access(p, F_OK));
- if (r >= 0) {
- path = TAKE_PTR(p);
- break;
- }
-
- if (r != -ENOENT)
- log_debug_errno(r, "Failed to determine whether '%s' exists, ignoring: %m", p);
- }
-
- if (!path)
- return -ENOENT;
-
- if (ret_dropins) {
- _cleanup_free_ char *dropin_dirname = NULL;
-
- dropin_dirname = strjoin(name, ".d");
- if (!dropin_dirname)
- return -ENOMEM;
-
- r = conf_files_list_dropins(ret_dropins, dropin_dirname, /* root = */ NULL, NETWORK_DIRS);
- if (r < 0)
- return r;
- }
-
- *ret_path = TAKE_PTR(path);
-
- return 0;
-}
-
-static int get_dropin_by_name(
- const char *name,
- char * const *dropins,
- char **ret) {
-
- assert(name);
- assert(ret);
-
- STRV_FOREACH(i, dropins)
- if (path_equal_filename(*i, name)) {
- _cleanup_free_ char *d = NULL;
-
- d = strdup(*i);
- if (!d)
- return -ENOMEM;
-
- *ret = TAKE_PTR(d);
- return 1;
- }
-
- *ret = NULL;
- return 0;
-}
-
-static int get_network_files_by_link(
- sd_netlink **rtnl,
- const char *link,
- char **ret_path,
- char ***ret_dropins) {
-
- _cleanup_strv_free_ char **dropins = NULL;
- _cleanup_free_ char *path = NULL;
- int r, ifindex;
-
- assert(rtnl);
- assert(link);
- assert(ret_path);
- assert(ret_dropins);
-
- ifindex = rtnl_resolve_interface_or_warn(rtnl, link);
- if (ifindex < 0)
- return ifindex;
-
- r = sd_network_link_get_network_file(ifindex, &path);
- if (r == -ENODATA)
- return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
- "Link '%s' has no associated network file.", link);
- if (r < 0)
- return log_error_errno(r, "Failed to get network file for link '%s': %m", link);
-
- r = sd_network_link_get_network_file_dropins(ifindex, &dropins);
- if (r < 0 && r != -ENODATA)
- return log_error_errno(r, "Failed to get network drop-ins for link '%s': %m", link);
-
- *ret_path = TAKE_PTR(path);
- *ret_dropins = TAKE_PTR(dropins);
-
- return 0;
-}
-
-static int get_link_files_by_link(const char *link, char **ret_path, char ***ret_dropins) {
- _cleanup_(sd_device_unrefp) sd_device *device = NULL;
- _cleanup_strv_free_ char **dropins_split = NULL;
- _cleanup_free_ char *p = NULL;
- const char *path, *dropins;
- int r;
-
- assert(link);
- assert(ret_path);
- assert(ret_dropins);
-
- r = sd_device_new_from_ifname(&device, link);
- if (r < 0)
- return log_error_errno(r, "Failed to create sd-device object for link '%s': %m", link);
-
- r = sd_device_get_property_value(device, "ID_NET_LINK_FILE", &path);
- if (r == -ENOENT)
- return log_error_errno(r, "Link '%s' has no associated link file.", link);
- if (r < 0)
- return log_error_errno(r, "Failed to get link file for link '%s': %m", link);
-
- r = sd_device_get_property_value(device, "ID_NET_LINK_FILE_DROPINS", &dropins);
- if (r < 0 && r != -ENOENT)
- return log_error_errno(r, "Failed to get link drop-ins for link '%s': %m", link);
- if (r >= 0) {
- r = strv_split_full(&dropins_split, dropins, ":", EXTRACT_CUNESCAPE);
- if (r < 0)
- return log_error_errno(r, "Failed to parse link drop-ins for link '%s': %m", link);
- }
-
- p = strdup(path);
- if (!p)
- return log_oom();
-
- *ret_path = TAKE_PTR(p);
- *ret_dropins = TAKE_PTR(dropins_split);
-
- return 0;
-}
-
-static int get_config_files_by_link_config(
- const char *link_config,
- sd_netlink **rtnl,
- char **ret_path,
- char ***ret_dropins,
- ReloadFlags *ret_reload) {
-
- _cleanup_strv_free_ char **dropins = NULL, **link_config_split = NULL;
- _cleanup_free_ char *path = NULL;
- const char *ifname, *type;
- ReloadFlags reload;
- size_t n;
- int r;
-
- assert(link_config);
- assert(rtnl);
- assert(ret_path);
- assert(ret_dropins);
-
- link_config_split = strv_split(link_config, ":");
- if (!link_config_split)
- return log_oom();
-
- n = strv_length(link_config_split);
- if (n == 0 || isempty(link_config_split[0]))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No link name is given.");
- if (n > 2)
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid link config '%s'.", link_config);
-
- ifname = link_config_split[0];
- type = n == 2 ? link_config_split[1] : "network";
-
- if (streq(type, "network")) {
- if (!networkd_is_running())
- return log_error_errno(SYNTHETIC_ERRNO(ESRCH),
- "Cannot get network file for link if systemd-networkd is not running.");
-
- r = get_network_files_by_link(rtnl, ifname, &path, &dropins);
- if (r < 0)
- return r;
-
- reload = RELOAD_NETWORKD;
- } else if (streq(type, "link")) {
- r = get_link_files_by_link(ifname, &path, &dropins);
- if (r < 0)
- return r;
-
- reload = RELOAD_UDEVD;
- } else
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
- "Invalid config type '%s' for link '%s'.", type, ifname);
-
- *ret_path = TAKE_PTR(path);
- *ret_dropins = TAKE_PTR(dropins);
-
- if (ret_reload)
- *ret_reload = reload;
-
- return 0;
-}
-
-static int add_config_to_edit(
- EditFileContext *context,
- const char *path,
- char * const *dropins) {
-
- _cleanup_free_ char *new_path = NULL, *dropin_path = NULL, *old_dropin = NULL;
- _cleanup_strv_free_ char **comment_paths = NULL;
- int r;
-
- assert(context);
- assert(path);
-
- /* If we're supposed to edit main config file in /run/, but a config with the same name is present
- * under /etc/, we bail out since the one in /etc/ always overrides that in /run/. */
- if (arg_runtime && !arg_drop_in && path_startswith(path, "/etc"))
- return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
- "Cannot edit runtime config file: overridden by %s", path);
-
- if (path_startswith(path, "/usr") || arg_runtime != !!path_startswith(path, "/run")) {
- _cleanup_free_ char *name = NULL;
-
- r = path_extract_filename(path, &name);
- if (r < 0)
- return log_error_errno(r, "Failed to extract filename from '%s': %m", path);
-
- new_path = path_join(NETWORK_DIRS[arg_runtime ? 1 : 0], name);
- if (!new_path)
- return log_oom();
- }
-
- if (!arg_drop_in)
- return edit_files_add(context, new_path ?: path, path, NULL);
-
- bool need_new_dropin;
-
- r = get_dropin_by_name(arg_drop_in, dropins, &old_dropin);
- if (r < 0)
- return log_error_errno(r, "Failed to acquire drop-in '%s': %m", arg_drop_in);
- if (r > 0) {
- /* See the explanation above */
- if (arg_runtime && path_startswith(old_dropin, "/etc"))
- return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
- "Cannot edit runtime config file: overridden by %s", old_dropin);
-
- need_new_dropin = path_startswith(old_dropin, "/usr") || arg_runtime != !!path_startswith(old_dropin, "/run");
- } else
- need_new_dropin = true;
-
- if (!need_new_dropin)
- /* An existing drop-in is found in the correct scope. Let's edit it directly. */
- dropin_path = TAKE_PTR(old_dropin);
- else {
- /* No drop-in was found or an existing drop-in is in a different scope. Let's create a new
- * drop-in file. */
- dropin_path = strjoin(new_path ?: path, ".d/", arg_drop_in);
- if (!dropin_path)
- return log_oom();
- }
-
- comment_paths = strv_new(path);
- if (!comment_paths)
- return log_oom();
-
- r = strv_extend_strv(&comment_paths, dropins, /* filter_duplicates = */ false);
- if (r < 0)
- return log_oom();
-
- return edit_files_add(context, dropin_path, old_dropin, comment_paths);
-}
-
-static int udevd_reload(sd_bus *bus) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
- const char *job_path;
- int r;
-
- assert(bus);
-
- r = bus_wait_for_jobs_new(bus, &w);
- if (r < 0)
- return log_error_errno(r, "Could not watch jobs: %m");
-
- r = bus_call_method(bus,
- bus_systemd_mgr,
- "ReloadUnit",
- &error,
- &reply,
- "ss",
- "systemd-udevd.service",
- "replace");
- if (r < 0)
- return log_error_errno(r, "Failed to reload systemd-udevd: %s", bus_error_message(&error, r));
-
- r = sd_bus_message_read(reply, "o", &job_path);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = bus_wait_for_jobs_one(w, job_path, /* flags = */ 0, NULL);
- if (r == -ENOEXEC) {
- log_debug("systemd-udevd is not running, skipping reload.");
- return 0;
- }
- if (r < 0)
- return log_error_errno(r, "Failed to reload systemd-udevd: %m");
-
- return 1;
-}
-
-static int verb_edit(int argc, char *argv[], void *userdata) {
- _cleanup_(edit_file_context_done) EditFileContext context = {
- .marker_start = DROPIN_MARKER_START,
- .marker_end = DROPIN_MARKER_END,
- .remove_parent = !!arg_drop_in,
- };
- _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
- ReloadFlags reload = 0;
- int r;
-
- if (!on_tty())
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit network config files if not on a tty.");
-
- r = mac_selinux_init();
- if (r < 0)
- return r;
-
- STRV_FOREACH(name, strv_skip(argv, 1)) {
- _cleanup_strv_free_ char **dropins = NULL;
- _cleanup_free_ char *path = NULL;
- const char *link_config;
-
- link_config = startswith(*name, "@");
- if (link_config) {
- ReloadFlags flags;
-
- r = get_config_files_by_link_config(link_config, &rtnl, &path, &dropins, &flags);
- if (r < 0)
- return r;
-
- reload |= flags;
-
- r = add_config_to_edit(&context, path, dropins);
- if (r < 0)
- return r;
-
- continue;
- }
-
- if (ENDSWITH_SET(*name, ".network", ".netdev"))
- reload |= RELOAD_NETWORKD;
- else if (endswith(*name, ".link"))
- reload |= RELOAD_UDEVD;
- else
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid network config name '%s'.", *name);
-
- r = get_config_files_by_name(*name, &path, &dropins);
- if (r == -ENOENT) {
- if (arg_drop_in)
- return log_error_errno(r, "Cannot find network config '%s'.", *name);
-
- log_debug("No existing network config '%s' found, creating a new file.", *name);
-
- path = path_join(NETWORK_DIRS[arg_runtime ? 1 : 0], *name);
- if (!path)
- return log_oom();
-
- r = edit_files_add(&context, path, NULL, NULL);
- if (r < 0)
- return r;
- continue;
- }
- if (r < 0)
- return log_error_errno(r, "Failed to get the path of network config '%s': %m", *name);
-
- r = add_config_to_edit(&context, path, dropins);
- if (r < 0)
- return r;
- }
-
- r = do_edit_files_and_install(&context);
- if (r < 0)
- return r;
-
- if (arg_no_reload)
- return 0;
-
- if (!sd_booted() || running_in_chroot() > 0) {
- log_debug("System is not booted with systemd or is running in chroot, skipping reload.");
- return 0;
- }
-
- _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
-
- r = sd_bus_open_system(&bus);
- if (r < 0)
- return log_error_errno(r, "Failed to connect to system bus: %m");
-
- if (FLAGS_SET(reload, RELOAD_UDEVD)) {
- r = udevd_reload(bus);
- if (r < 0)
- return r;
- }
-
- if (FLAGS_SET(reload, RELOAD_NETWORKD)) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
-
- if (!networkd_is_running()) {
- log_debug("systemd-networkd is not running, skipping reload.");
- return 0;
- }
-
- r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to reload systemd-networkd: %s", bus_error_message(&error, r));
- }
-
- return 0;
-}
-
-static int verb_cat(int argc, char *argv[], void *userdata) {
- _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
- int r, ret = 0;
-
- pager_open(arg_pager_flags);
-
- STRV_FOREACH(name, strv_skip(argv, 1)) {
- _cleanup_strv_free_ char **dropins = NULL;
- _cleanup_free_ char *path = NULL;
- const char *link_config;
-
- link_config = startswith(*name, "@");
- if (link_config) {
- r = get_config_files_by_link_config(link_config, &rtnl, &path, &dropins, /* ret_reload = */ NULL);
- if (r < 0)
- return RET_GATHER(ret, r);
- } else {
- r = get_config_files_by_name(*name, &path, &dropins);
- if (r == -ENOENT) {
- RET_GATHER(ret, log_error_errno(r, "Cannot find network config file '%s'.", *name));
- continue;
- }
- if (r < 0) {
- log_error_errno(r, "Failed to get the path of network config '%s': %m", *name);
- return RET_GATHER(ret, r);
- }
- }
-
- r = cat_files(path, dropins, /* flags = */ CAT_FORMAT_HAS_SECTIONS);
- if (r < 0)
- return RET_GATHER(ret, r);
- }
-
- return ret;
-}
-
static int help(void) {
_cleanup_free_ char *link = NULL;
int r;
projects / thirdparty / systemd.git / commitdiff
