sd-netlink introduce API to add any size and type

Now we dont have any public API that will support
any size . sd_netlink_message_append_data will support
this.

2 files changed, 14 insertions, 0 deletions

diff --git a/src/libsystemd/sd-netlink/netlink-message.c b/src/libsystemd/sd-netlink/netlink-message.c
index 50792bc4a3..b1b3bccc44 100644
--- a/src/libsystemd/sd-netlink/netlink-message.c
+++ b/src/libsystemd/sd-netlink/netlink-message.c
@@ -342,6 +342,19 @@ int sd_netlink_message_append_u32(sd_netlink_message *m, unsigned short type, ui
         return 0;
 }
 
+int sd_netlink_message_append_data(sd_netlink_message *m, unsigned short type, const void *data, size_t len) {
+        int r;
+
+        assert_return(m, -EINVAL);
+        assert_return(!m->sealed, -EPERM);
+
+        r = add_rtattr(m, type, &data, len);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
 int sd_netlink_message_append_in_addr(sd_netlink_message *m, unsigned short type, const struct in_addr *data) {
         int r;
 
diff --git a/src/systemd/sd-netlink.h b/src/systemd/sd-netlink.h
index 98088f1204..5d0d0643e1 100644
--- a/src/systemd/sd-netlink.h
+++ b/src/systemd/sd-netlink.h
@@ -74,6 +74,7 @@ int sd_netlink_message_append_flag(sd_netlink_message *m, unsigned short type);
 int sd_netlink_message_append_u8(sd_netlink_message *m, unsigned short type, uint8_t data);
 int sd_netlink_message_append_u16(sd_netlink_message *m, unsigned short type, uint16_t data);
 int sd_netlink_message_append_u32(sd_netlink_message *m, unsigned short type, uint32_t data);
+int sd_netlink_message_append_data(sd_netlink_message *m, unsigned short type, const void *data, size_t len);
 int sd_netlink_message_append_in_addr(sd_netlink_message *m, unsigned short type, const struct in_addr *data);
 int sd_netlink_message_append_in6_addr(sd_netlink_message *m, unsigned short type, const struct in6_addr *data);
 int sd_netlink_message_append_ether_addr(sd_netlink_message *m, unsigned short type, const struct ether_addr *data);