sd-rtnl: add support to set packet family type

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

diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
index 906a9de1c098a7261f41e9fbbf5a05391720c532..44ad303198a72942a40466829da479fd038ce76a 100644 (file)
--- a/src/libsystemd/sd-rtnl/rtnl-message.c
+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
@@ -23,12 +23,6 @@
 #include <netinet/ether.h>
 #include <stdbool.h>
 #include <unistd.h>
-#include <linux/netlink.h>
-#include <linux/veth.h>
-#include <linux/if.h>
-#include <linux/ip.h>
-#include <linux/if_tunnel.h>
-#include <linux/if_bridge.h>
 
 #include "util.h"
 #include "refcnt.h"
@@ -42,6 +36,8 @@
 #define GET_CONTAINER(m, i) ((i) < (m)->n_containers ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->container_offsets[i]) : NULL)
 #define PUSH_CONTAINER(m, new) (m)->container_offsets[(m)->n_containers ++] = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
 
+#define RTA_TYPE(rta) ((rta)->rta_type & NLA_TYPE_MASK)
+
 static int message_new_empty(sd_rtnl *rtnl, sd_rtnl_message **ret) {
         sd_rtnl_message *m;
 
@@ -190,6 +186,20 @@ int sd_rtnl_message_link_set_type(sd_rtnl_message *m, unsigned type) {
         return 0;
 }
 
+int sd_rtnl_message_link_set_family(sd_rtnl_message *m, unsigned family) {
+        struct ifinfomsg *ifi;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
+
+        ifi = NLMSG_DATA(m->hdr);
+
+        ifi->ifi_family = family;
+
+        return 0;
+}
+
 int sd_rtnl_message_new_link(sd_rtnl *rtnl, sd_rtnl_message **ret,
                              uint16_t nlmsg_type, int index) {
         struct ifinfomsg *ifi;
@@ -531,7 +541,6 @@ static int add_rtattr(sd_rtnl_message *m, unsigned short type, const void *data,
                 /* if no data was passed, make sure we still initialize the padding
                    note that we can have data_length > 0 (used by some containers) */
                 padding = RTA_DATA(rta);
-                data_length = 0;
         }
 
         /* make sure also the padding at the end of the message is initialized */
@@ -730,7 +739,7 @@ int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type) {
         if (r < 0)
                 return r;
 
-        r = add_rtattr(m, type, NULL, size);
+        r = add_rtattr(m, type | NLA_F_NESTED, NULL, size);
         if (r < 0)
                 return r;
 
@@ -1073,7 +1082,7 @@ int rtnl_message_parse(sd_rtnl_message *m,
         *rta_tb_size = max + 1;
 
         for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
-                type = rta->rta_type;
+                type = RTA_TYPE(rta);
 
                 /* if the kernel is newer than the headers we used
                    when building, we ignore out-of-range attributes