#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 {
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;
+ _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);
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"),
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;
-}
-
-#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a)
-
static int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {
int r;
if (want_random)
random_bytes(mac->ether_addr_octet, ETH_ALEN);
else {
- const char *name;
uint8_t result[8];
- size_t l, sz;
- uint8_t *v;
-
- /* 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;
- }
- }
- l = strlen(name);
- sz = sizeof(sd_id128_t) + l;
- v = alloca(sz);
-
- /* fetch some persistent data unique to this machine */
- r = sd_id128_get_machine((sd_id128_t*) v);
+ r = net_get_unique_predictable_data(device, result);
if (r < 0)
return r;
- memcpy(v + sizeof(sd_id128_t), name, l);
-
- /* Let's hash the machine ID plus the device name. We
- * use a fixed, but originally randomly created hash
- * key here. */
- siphash24(result, v, sz, HASH_KEY.bytes);
assert_cc(ETH_ALEN <= sizeof(result));
memcpy(mac->ether_addr_octet, result, ETH_ALEN);
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;
}
~ianmdlvl / elogind.git / blobdiff