From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 12 Jan 2024 10:36:49 +0000 (+0100)
Subject: sd-netlink: hook up nsid APIs
X-Git-Tag: v256-rc1~1170^2~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1078628096ad27bf42844682a3fb5087a2bb0fed;p=thirdparty%2Fsystemd.git

sd-netlink: hook up nsid APIs
---

diff --git a/src/libsystemd/sd-netlink/netlink-message-rtnl.c b/src/libsystemd/sd-netlink/netlink-message-rtnl.c
index f84097e16de..fb11c7e02bb 100644
--- a/src/libsystemd/sd-netlink/netlink-message-rtnl.c
+++ b/src/libsystemd/sd-netlink/netlink-message-rtnl.c
@@ -56,6 +56,10 @@ static bool rtnl_message_type_is_mdb(uint16_t type) {
         return IN_SET(type, RTM_NEWMDB, RTM_DELMDB, RTM_GETMDB);
 }
 
+static bool rtnl_message_type_is_nsid(uint16_t type) {
+        return IN_SET(type, RTM_NEWNSID, RTM_DELNSID, RTM_GETNSID);
+}
+
 int sd_rtnl_message_route_set_dst_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
         struct rtmsg *rtm;
 
@@ -1216,3 +1220,24 @@ int sd_rtnl_message_new_mdb(
 
         return 0;
 }
+
+int sd_rtnl_message_new_nsid(
+                sd_netlink *rtnl,
+                sd_netlink_message **ret,
+                uint16_t nlmsg_type) {
+
+        struct rtgenmsg *rt;
+        int r;
+
+        assert_return(rtnl_message_type_is_nsid(nlmsg_type), -EINVAL);
+        assert_return(ret, -EINVAL);
+
+        r = message_new(rtnl, ret, nlmsg_type);
+        if (r < 0)
+                return r;
+
+        rt = NLMSG_DATA((*ret)->hdr);
+        rt->rtgen_family = AF_UNSPEC;
+
+        return 0;
+}
diff --git a/src/libsystemd/sd-netlink/netlink-types-rtnl.c b/src/libsystemd/sd-netlink/netlink-types-rtnl.c
index 0153456d9be..681b3086d08 100644
--- a/src/libsystemd/sd-netlink/netlink-types-rtnl.c
+++ b/src/libsystemd/sd-netlink/netlink-types-rtnl.c
@@ -17,6 +17,7 @@
 #include <linux/if_tunnel.h>
 #include <linux/ip.h>
 #include <linux/l2tp.h>
+#include <linux/net_namespace.h>
 #include <linux/netlink.h>
 #include <linux/nexthop.h>
 #include <linux/nl80211.h>
@@ -1185,6 +1186,13 @@ static const NLAPolicy rtnl_mdb_policies[] = {
 
 DEFINE_POLICY_SET(rtnl_mdb);
 
+static const NLAPolicy rtnl_nsid_policies[] = {
+        [NETNSA_FD]         = BUILD_POLICY(S32),
+        [NETNSA_NSID]       = BUILD_POLICY(U32),
+};
+
+DEFINE_POLICY_SET(rtnl_nsid);
+
 static const NLAPolicy rtnl_policies[] = {
         [RTM_NEWLINK]      = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_link, sizeof(struct ifinfomsg)),
         [RTM_DELLINK]      = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_link, sizeof(struct ifinfomsg)),
@@ -1220,6 +1228,9 @@ static const NLAPolicy rtnl_policies[] = {
         [RTM_NEWMDB]       = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_mdb, sizeof(struct br_port_msg)),
         [RTM_DELMDB]       = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_mdb, sizeof(struct br_port_msg)),
         [RTM_GETMDB]       = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_mdb, sizeof(struct br_port_msg)),
+        [RTM_NEWNSID]      = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_nsid, sizeof(struct rtgenmsg)),
+        [RTM_DELNSID]      = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_nsid, sizeof(struct rtgenmsg)),
+        [RTM_GETNSID]      = BUILD_POLICY_NESTED_WITH_SIZE(rtnl_nsid, sizeof(struct rtgenmsg)),
 };
 
 DEFINE_POLICY_SET(rtnl);
diff --git a/src/systemd/sd-netlink.h b/src/systemd/sd-netlink.h
index 240d21f9cad..34db2bbf1cc 100644
--- a/src/systemd/sd-netlink.h
+++ b/src/systemd/sd-netlink.h
@@ -216,6 +216,8 @@ int sd_rtnl_message_traffic_control_get_parent(sd_netlink_message *m, uint32_t *
 
 int sd_rtnl_message_new_mdb(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int mdb_ifindex);
 
+int sd_rtnl_message_new_nsid(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type);
+
 /* genl */
 int sd_genl_socket_open(sd_netlink **ret);
 int sd_genl_message_new(sd_netlink *genl, const char *family_name, uint8_t cmd, sd_netlink_message **ret);