along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <linux/rtnetlink.h>
#include <netinet/ether.h>
#include "sd-rtnl.h"
#include "rtnl-util.h"
+#include "rtnl-internal.h"
-int rtnl_set_link_name(sd_rtnl *rtnl, int ifindex, const char *name) {
- _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message = NULL;
+int rtnl_set_link_name(sd_rtnl **rtnl, int ifindex, const char *name) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL;
int r;
assert(rtnl);
assert(ifindex > 0);
assert(name);
- r = sd_rtnl_message_link_new(RTM_SETLINK, ifindex, &message);
+ if (!*rtnl) {
+ r = sd_rtnl_open(rtnl, 0);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_rtnl_message_new_link(*rtnl, &message, RTM_SETLINK, ifindex);
if (r < 0)
return r;
if (r < 0)
return r;
- r = sd_rtnl_call(rtnl, message, 0, NULL);
+ r = sd_rtnl_call(*rtnl, message, 0, NULL);
if (r < 0)
return r;
return 0;
}
-int rtnl_set_link_properties(sd_rtnl *rtnl, int ifindex, const char *alias,
+int rtnl_set_link_properties(sd_rtnl **rtnl, int ifindex, const char *alias,
const struct ether_addr *mac, unsigned mtu) {
- _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message = NULL;
- bool need_update = false;
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL;
int r;
assert(rtnl);
if (!alias && !mac && mtu == 0)
return 0;
- r = sd_rtnl_message_link_new(RTM_SETLINK, ifindex, &message);
+ if (!*rtnl) {
+ r = sd_rtnl_open(rtnl, 0);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_rtnl_message_new_link(*rtnl, &message, RTM_SETLINK, ifindex);
if (r < 0)
return r;
r = sd_rtnl_message_append_string(message, IFLA_IFALIAS, alias);
if (r < 0)
return r;
-
- need_update = true;
-
}
if (mac) {
r = sd_rtnl_message_append_ether_addr(message, IFLA_ADDRESS, mac);
if (r < 0)
return r;
-
- need_update = true;
}
if (mtu > 0) {
r = sd_rtnl_message_append_u32(message, IFLA_MTU, mtu);
if (r < 0)
return r;
+ }
+
+ r = sd_rtnl_call(*rtnl, message, 0, NULL);
+ if (r < 0)
+ return r;
- need_update = true;
+ return 0;
+}
+
+int rtnl_message_new_synthetic_error(int error, uint32_t serial, sd_rtnl_message **ret) {
+ struct nlmsgerr *err;
+ int r;
+
+ assert(error <= 0);
+
+ r = message_new(NULL, ret, NLMSG_SPACE(sizeof(struct nlmsgerr)));
+ if (r < 0)
+ return r;
+
+ (*ret)->hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
+ (*ret)->hdr->nlmsg_type = NLMSG_ERROR;
+ (*ret)->hdr->nlmsg_seq = serial;
+
+ err = NLMSG_DATA((*ret)->hdr);
+
+ err->error = error;
+
+ return 0;
+}
+
+bool rtnl_message_type_is_neigh(uint16_t type) {
+ switch (type) {
+ case RTM_NEWNEIGH:
+ case RTM_GETNEIGH:
+ case RTM_DELNEIGH:
+ return true;
+ default:
+ return false;
}
+}
- if (need_update) {
- r = sd_rtnl_call(rtnl, message, 0, NULL);
- if (r < 0)
- return r;
+bool rtnl_message_type_is_route(uint16_t type) {
+ switch (type) {
+ case RTM_NEWROUTE:
+ case RTM_GETROUTE:
+ case RTM_DELROUTE:
+ return true;
+ default:
+ return false;
}
+}
- return 0;
+bool rtnl_message_type_is_link(uint16_t type) {
+ switch (type) {
+ case RTM_NEWLINK:
+ case RTM_SETLINK:
+ case RTM_GETLINK:
+ case RTM_DELLINK:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool rtnl_message_type_is_addr(uint16_t type) {
+ switch (type) {
+ case RTM_NEWADDR:
+ case RTM_GETADDR:
+ case RTM_DELADDR:
+ return true;
+ default:
+ return false;
+ }
+}
+
+int rtnl_log_parse_error(int r) {
+ return log_error_errno(r, "Failed to parse netlink message: %m");
+}
+
+int rtnl_log_create_error(int r) {
+ return log_error_errno(r, "Failed to create netlink message: %m");
}