***/
#include <netinet/ether.h>
-#include <net/if.h>
+#include <linux/netdevice.h>
#include "sd-id128.h"
+#include "missing.h"
#include "link-config.h"
#include "ethtool-util.h"
if (ctx->ethtool_fd == -1) {
r = ethtool_connect(&ctx->ethtool_fd);
- if (r < 0)
+ if (r < 0) {
+ log_warning("link_config: could not connect to ethtool: %s",
+ strerror(-r));
return r;
+ }
}
if (!ctx->rtnl) {
r = sd_rtnl_open(&ctx->rtnl, 0);
- if (r < 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);
}
}
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);
if (errno == ENOENT)
return 0;
else
- return errno;
+ return -errno;
}
- link = new0(link_config, 1);
- if (!link) {
- r = log_oom();
- goto failure;
+ if (null_or_empty_fd(fileno(file))) {
+ log_debug("Skipping empty file: %s", filename);
+ return 0;
}
+ link = new0(link_config, 1);
+ if (!link)
+ return log_oom();
+
link->mac_policy = _MACPOLICY_INVALID;
link->wol = _WOL_INVALID;
link->duplex = _DUP_INVALID;
- r = config_parse(NULL, filename, file, "Match\0Link\0Ethernet\0", config_item_perf_lookup,
- (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;
- } else
+ r = config_parse(NULL, filename, file,
+ "Match\0Link\0Ethernet\0",
+ config_item_perf_lookup, link_config_gperf_lookup,
+ false, false, true, link);
+ if (r < 0)
+ 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;
- char *w, *state;
+ _cleanup_free_ char *line = NULL;
+ const char *word, *state;
int r;
size_t l;
if (r <= 0)
return true;
- FOREACH_WORD_QUOTED(w, l, line, state)
- if (strneq(w, "net.ifnames=0", l))
+ FOREACH_WORD_QUOTED(word, l, line, state)
+ if (strneq(word, "net.ifnames=0", l))
return false;
return true;
int link_config_load(link_config_ctx *ctx) {
int r;
- char **files, **f;
+ _cleanup_strv_free_ char **files;
+ char **f;
link_configs_free(ctx);
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,
- udev_device_get_sysattr_value(device, "address"),
+ ether_aton(udev_device_get_sysattr_value(device, "address")),
udev_device_get_property_value(device, "ID_PATH"),
udev_device_get_driver(udev_device_get_parent(device)),
udev_device_get_property_value(device, "ID_NET_DRIVER"),
if (r < 0)
return false;
- /* check for NET_ADDR_RANDOM */
- return type == 1;
+ return type == NET_ADDR_RANDOM;
}
-static bool mac_is_permanent(struct udev_device *device) {
+static bool should_rename(struct udev_device *device, bool respect_predictable) {
const char *s;
unsigned type;
int r;
- s = udev_device_get_sysattr_value(device, "addr_assign_type");
+ s = udev_device_get_sysattr_value(device, "name_assign_type");
if (!s)
- return true; /* if we don't know, assume it is permanent */
+ return true; /* if we don't know, assume we should rename */
r = safe_atou(s, &type);
if (r < 0)
return true;
- /* check for NET_ADDR_PERM */
- return type == 0;
+ switch (type) {
+ case NET_NAME_USER:
+ case NET_NAME_RENAMED:
+ return false; /* these were already named by userspace, do not touch again */
+ case NET_NAME_PREDICTABLE:
+ if (respect_predictable)
+ return false; /* the kernel claims to have given a predictable name */
+ /* fall through */
+ case NET_NAME_ENUM:
+ default:
+ return true; /* the name is known to be bad, or of an unknown type */
+ }
}
static int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {
const char *new_name = NULL;
struct ether_addr generated_mac;
struct ether_addr *mac = NULL;
+ bool respect_predictable = false;
int r, ifindex;
assert(ctx);
if (ctx->enable_name_policy && config->name_policy) {
NamePolicy *policy;
- for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {
+ for (policy = config->name_policy; !respect_predictable && !new_name &&
+ *policy != _NAMEPOLICY_INVALID; policy++) {
switch (*policy) {
+ case NAMEPOLICY_KERNEL:
+ respect_predictable = true;
+ break;
case NAMEPOLICY_DATABASE:
new_name = udev_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE");
break;
}
}
- if (new_name)
- *name = new_name; /* a name was set by a policy */
- else if (config->name)
- *name = config->name; /* a name was set manually in the config */
- else
- *name = NULL;
+ if (should_rename(device, respect_predictable)) {
+ if (!new_name)
+ /* if not set by policy, fall back manually set name */
+ new_name = config->name;
+ } else
+ new_name = NULL;
+
+ *name = new_name;
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)
+ if (r == -ENOENT)
+ break;
+ else if (r < 0)
return r;
mac = &generated_mac;
}
case MACPOLICY_RANDOM:
if (!mac_is_random(device)) {
r = get_mac(device, true, &generated_mac);
- if (r < 0)
+ if (r == -ENOENT)
+ break;
+ else if (r < 0)
return r;
mac = &generated_mac;
}
DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy");
static const char* const name_policy_table[_NAMEPOLICY_MAX] = {
+ [NAMEPOLICY_KERNEL] = "kernel",
[NAMEPOLICY_DATABASE] = "database",
[NAMEPOLICY_ONBOARD] = "onboard",
[NAMEPOLICY_SLOT] = "slot",
~ianmdlvl / elogind.git / blobdiff