#include "fileio.h"
#include "hashmap.h"
#include "rtnl-util.h"
-#include "net-util.h"
+#include "network-internal.h"
+#include "siphash24.h"
struct link_config_ctx {
LIST_HEAD(link_config, links);
sd_rtnl *rtnl;
- char **link_dirs;
usec_t link_dirs_ts_usec;
};
+static const char* const link_dirs[] = {
+ "/etc/systemd/network",
+ "/run/systemd/network",
+ "/usr/lib/systemd/network",
+#ifdef HAVE_SPLIT_USR
+ "/lib/systemd/network",
+#endif
+ NULL};
+
DEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free);
#define _cleanup_link_config_ctx_free_ _cleanup_(link_config_ctx_freep)
ctx->enable_name_policy = true;
- ctx->link_dirs = strv_new("/etc/systemd/network",
- "/run/systemd/network",
- "/usr/lib/systemd/network",
-#ifdef HAVE_SPLIT_USR
- "/lib/systemd/network",
-#endif
- NULL);
- if (!ctx->link_dirs) {
- log_error("failed to build link config directory array");
- return -ENOMEM;
- }
-
- if (!path_strv_canonicalize_uniq(ctx->link_dirs)) {
- log_error("failed to canonicalize link config directories\n");
- return -ENOMEM;
- }
-
*ret = ctx;
ctx = NULL;
static int link_config_ctx_connect(link_config_ctx *ctx) {
int r;
- if (ctx->ethtool_fd >= 0 && ctx->rtnl)
- return 0;
-
- r = ethtool_connect(&ctx->ethtool_fd);
- if (r < 0)
- return r;
+ if (ctx->ethtool_fd == -1) {
+ r = ethtool_connect(&ctx->ethtool_fd);
+ if (r < 0) {
+ log_warning("link_config: could not connect to ethtool: %s",
+ strerror(-r));
+ return r;
+ }
+ }
- r = sd_rtnl_open(0, &ctx->rtnl);
- if (r < 0)
- return r;
+ if (!ctx->rtnl) {
+ r = sd_rtnl_open(&ctx->rtnl, 0);
+ if (r < 0) {
+ log_warning("link_config: could not connect to rtnl: %s",
+ strerror(-r));
+ return r;
+ }
+ }
return 0;
}
free(link->match_type);
free(link->description);
free(link->alias);
+ free(link->name_policy);
free(link);
}
if (!ctx)
return;
- if (ctx->ethtool_fd >= 0)
- close_nointr_nofail(ctx->ethtool_fd);
+ safe_close(ctx->ethtool_fd);
sd_rtnl_unref(ctx->rtnl);
- strv_free(ctx->link_dirs);
link_configs_free(ctx);
free(ctx);
}
static int load_link(link_config_ctx *ctx, const char *filename) {
- link_config *link;
- _cleanup_fclose_ FILE *file;
+ _cleanup_free_ link_config *link = NULL;
+ _cleanup_fclose_ FILE *file = NULL;
int r;
+ assert(ctx);
+ assert(filename);
+
+ if (null_or_empty_path(filename)) {
+ log_debug("skipping empty file: %s", filename);
+ return 0;
+ }
+
file = fopen(filename, "re");
if (!file) {
if (errno == ENOENT)
return 0;
else
- return errno;
+ return -errno;
}
link = new0(link_config, 1);
- if (!link) {
- r = log_oom();
- goto failure;
- }
+ if (!link)
+ return log_oom();
link->mac_policy = _MACPOLICY_INVALID;
link->wol = _WOL_INVALID;
(void*) link_config_gperf_lookup, false, false, link);
if (r < 0) {
log_warning("Could not parse config file %s: %s", filename, strerror(-r));
- goto failure;
+ return r;
} else
log_debug("Parsed configuration file %s", filename);
link->filename = strdup(filename);
LIST_PREPEND(links, ctx->links, link);
+ link = NULL;
return 0;
-
-failure:
- free(link);
- return r;
}
static bool enable_name_policy(void) {
- _cleanup_free_ char *line;
+ _cleanup_free_ char *line = NULL;
char *w, *state;
int r;
size_t l;
int link_config_load(link_config_ctx *ctx) {
int r;
- char **files, **f;
+ _cleanup_strv_free_ char **files;
+ char **f;
link_configs_free(ctx);
}
/* update timestamp */
- paths_check_timestamp(ctx->link_dirs, &ctx->link_dirs_ts_usec, true);
+ paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, true);
- r = conf_files_list_strv(&files, ".link", NULL, (const char **)ctx->link_dirs);
+ r = conf_files_list_strv(&files, ".link", NULL, link_dirs);
if (r < 0) {
log_error("failed to enumerate link files: %s", strerror(-r));
return r;
}
bool link_config_should_reload(link_config_ctx *ctx) {
- return paths_check_timestamp(ctx->link_dirs, &ctx->link_dirs_ts_usec, false);
+ return paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, false);
}
int link_config_get(link_config_ctx *ctx, struct udev_device *device, link_config **ret) {
LIST_FOREACH(links, link, ctx->links) {
- if (net_match_config(link->match_mac, link->match_path,
- link->match_driver, link->match_type, NULL,
- udev_device_get_sysattr_value(device, "address"),
+ if (net_match_config(link->match_mac, link->match_path, link->match_driver,
+ link->match_type, NULL, link->match_host,
+ link->match_virt, link->match_kernel, link->match_arch,
+ ether_aton(udev_device_get_sysattr_value(device, "address")),
udev_device_get_property_value(device, "ID_PATH"),
- udev_device_get_driver(device),
+ udev_device_get_driver(udev_device_get_parent(device)),
+ udev_device_get_property_value(device, "ID_NET_DRIVER"),
udev_device_get_devtype(device),
NULL)) {
log_debug("Config file %s applies to device %s",
return type == 1;
}
-static bool mac_is_permanent(struct udev_device *device) {
- const char *s;
- unsigned type;
- int r;
-
- s = udev_device_get_sysattr_value(device, "addr_assign_type");
- if (!s)
- return true; /* if we don't know, assume it is permanent */
- r = safe_atou(s, &type);
- if (r < 0)
- return true;
-
- /* check for NET_ADDR_PERM */
- return type == 0;
-}
-
static int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {
- unsigned int seed;
- int r, i;
+ int r;
if (want_random)
- seed = random_u();
+ random_bytes(mac->ether_addr_octet, ETH_ALEN);
else {
- const char *name;
- sd_id128_t machine;
- char machineid_buf[33];
- const char *seed_str;
-
- /* fetch some persistent data unique (on this machine) to this device */
- name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");
- if (!name) {
- name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");
- if (!name) {
- name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");
- if (!name)
- return -ENOENT;
- }
- }
- /* fetch some persistent data unique to this machine */
- r = sd_id128_get_machine(&machine);
+ uint8_t result[8];
+
+ r = net_get_unique_predictable_data(device, result);
if (r < 0)
return r;
- /* combine the data */
- seed_str = strappenda(name, sd_id128_to_string(machine, machineid_buf));
-
- /* hash to get seed */
- seed = string_hash_func(seed_str);
- }
-
- srandom(seed);
-
- for (i = 0; i < ETH_ALEN; i++) {
- mac->ether_addr_octet[i] = random();
+ assert_cc(ETH_ALEN <= sizeof(result));
+ memcpy(mac->ether_addr_octet, result, ETH_ALEN);
}
/* see eth_random_addr in the kernel */
if (!old_name)
return -EINVAL;
- r = ethtool_set_speed(ctx->ethtool_fd, old_name, config->speed, config->duplex);
+ r = ethtool_set_speed(ctx->ethtool_fd, old_name, config->speed / 1024, config->duplex);
if (r < 0)
- log_warning("Could not set speed or duplex of %s to %u Mbytes (%s): %s",
- old_name, config->speed, duplex_to_string(config->duplex), strerror(-r));
+ log_warning("Could not set speed or duplex of %s to %u Mbps (%s): %s",
+ old_name, config->speed / 1024, duplex_to_string(config->duplex),
+ strerror(-r));
r = ethtool_set_wol(ctx->ethtool_fd, old_name, config->wol);
if (r < 0)
for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {
switch (*policy) {
+ case NAMEPOLICY_DATABASE:
+ new_name = udev_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE");
+ break;
case NAMEPOLICY_ONBOARD:
new_name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");
break;
switch (config->mac_policy) {
case MACPOLICY_PERSISTENT:
- if (!mac_is_permanent(device)) {
+ if (mac_is_random(device)) {
r = get_mac(device, false, &generated_mac);
if (r < 0)
return r;
return 0;
}
-static const char* const mac_policy_table[] = {
+int link_get_driver(link_config_ctx *ctx, struct udev_device *device, char **ret) {
+ const char *name;
+ char *driver;
+ int r;
+
+ r = link_config_ctx_connect(ctx);
+ if (r < 0)
+ return r;
+
+ name = udev_device_get_sysname(device);
+ if (!name)
+ return -EINVAL;
+
+ r = ethtool_get_driver(ctx->ethtool_fd, name, &driver);
+ if (r < 0)
+ return r;
+
+ *ret = driver;
+ return 0;
+}
+
+static const char* const mac_policy_table[_MACPOLICY_MAX] = {
[MACPOLICY_PERSISTENT] = "persistent",
[MACPOLICY_RANDOM] = "random"
};
DEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy);
DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy");
-static const char* const name_policy_table[] = {
+static const char* const name_policy_table[_NAMEPOLICY_MAX] = {
+ [NAMEPOLICY_DATABASE] = "database",
[NAMEPOLICY_ONBOARD] = "onboard",
[NAMEPOLICY_SLOT] = "slot",
[NAMEPOLICY_PATH] = "path",
~ianmdlvl / elogind.git / blobdiff