udev-builtin-keyboard: More useful error message

[elogind.git] / src / libsystemd-rtnl / rtnl-message.c

diff --git a/src/libsystemd-rtnl/rtnl-message.c b/src/libsystemd-rtnl/rtnl-message.c
index f7ff0a0148b85b610700209d90f584fbbf8f985b..26da7f2db88c3b3db5cce254dce4afe2224b276d 100644 (file)
--- a/src/libsystemd-rtnl/rtnl-message.c
+++ b/src/libsystemd-rtnl/rtnl-message.c
@@ -68,6 +68,27 @@ static int message_new(sd_rtnl_message **ret, size_t initial_size) {
         return 0;
 }
 
+int message_new_synthetic_error(int error, uint32_t serial, sd_rtnl_message **ret) {
+        struct nlmsgerr *err;
+        int r;
+
+        assert(error <= 0);
+
+        r = message_new(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;
+}
+
 int sd_rtnl_message_route_new(uint16_t nlmsg_type, unsigned char rtm_family,
                               unsigned char rtm_dst_len, unsigned char rtm_src_len,
                               unsigned char rtm_tos, unsigned char rtm_table,
@@ -108,7 +129,8 @@ int sd_rtnl_message_link_new(uint16_t nlmsg_type, int index, unsigned int type,
         struct ifinfomsg *ifi;
         int r;
 
-        assert_return(nlmsg_type == RTM_NEWLINK || nlmsg_type == RTM_DELLINK || nlmsg_type == RTM_GETLINK, -EINVAL);
+        assert_return(nlmsg_type == RTM_NEWLINK || nlmsg_type == RTM_DELLINK ||
+                      nlmsg_type == RTM_SETLINK || nlmsg_type == RTM_GETLINK, -EINVAL);
         assert_return(index > 0, -EINVAL);
         assert_return(ret, -EINVAL);
 
@@ -237,14 +259,15 @@ int sd_rtnl_message_append(sd_rtnl_message *m, unsigned short type, const void *
 
         switch (rtm_type) {
                 case RTM_NEWLINK:
+                case RTM_SETLINK:
                 case RTM_DELLINK:
                 case RTM_GETLINK:
                         switch (type) {
                                 case IFLA_IFNAME:
+                                case IFLA_IFALIAS:
                                 case IFLA_QDISC:
                                         return add_rtattr(m, type, data, strlen(data) + 1);
                                 case IFLA_MTU:
-                                        return add_rtattr(m, type, data, sizeof(uint32_t));
                                 case IFLA_LINK:
                                         return add_rtattr(m, type, data, sizeof(uint32_t));
                                 case IFLA_STATS:
@@ -331,6 +354,7 @@ int sd_rtnl_message_read(sd_rtnl_message *m, unsigned short *type, void **data)
 
         switch (rtm_type) {
                 case RTM_NEWLINK:
+                case RTM_SETLINK:
                 case RTM_DELLINK:
                 case RTM_GETLINK:
                         if (!m->next_rta) {
@@ -373,10 +397,10 @@ uint32_t message_get_serial(sd_rtnl_message *m) {
         return m->hdr->nlmsg_seq;
 }
 
-int message_get_errno(sd_rtnl_message *m) {
+int sd_rtnl_message_get_errno(sd_rtnl_message *m) {
         struct nlmsgerr *err;
 
-        assert(m);
+        assert_return(m, -EINVAL);
 
         if (m->hdr->nlmsg_type != NLMSG_ERROR)
                 return 0;
@@ -491,6 +515,7 @@ int socket_read_message(sd_rtnl *nl, sd_rtnl_message **ret) {
                                         k = -EIO;
                                 break;
                         case RTM_NEWLINK:
+                        case RTM_SETLINK:
                         case RTM_DELLINK:
                         case RTM_GETLINK:
                                 if (m->hdr->nlmsg_len < NLMSG_LENGTH(sizeof(struct ifinfomsg)))