From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 24 Jul 2019 04:10:12 +0000 (+0900)
Subject: sd-netlink: introduce sd_genl_message_get_family()
X-Git-Tag: v244-rc1~172^2~6
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=31e78d1042a39709e54215a511a8d5f47b23a72b;p=thirdparty%2Fsystemd.git

sd-netlink: introduce sd_genl_message_get_family()
---

diff --git a/src/libsystemd/sd-netlink/generic-netlink.c b/src/libsystemd/sd-netlink/generic-netlink.c
index cfd9b4973df..58dda0323d1 100644
--- a/src/libsystemd/sd-netlink/generic-netlink.c
+++ b/src/libsystemd/sd-netlink/generic-netlink.c
@@ -158,3 +158,19 @@ int nlmsg_type_to_genl_family(sd_netlink *nl, uint16_t type, sd_genl_family *ret
 
         return 0;
 }
+
+int sd_genl_message_get_family(sd_netlink *nl, sd_netlink_message *m, sd_genl_family *family) {
+        uint16_t type;
+        int r;
+
+        assert_return(m, -EINVAL);
+        assert_return(nl, -EINVAL);
+        assert_return(nl->protocol == NETLINK_GENERIC, -EINVAL);
+        assert_return(family, -EINVAL);
+
+        r = sd_netlink_message_get_type(m, &type);
+        if (r < 0)
+                return r;
+
+        return nlmsg_type_to_genl_family(nl, type, family);
+}
diff --git a/src/systemd/sd-netlink.h b/src/systemd/sd-netlink.h
index 283c2dd35b4..43a15a98c00 100644
--- a/src/systemd/sd-netlink.h
+++ b/src/systemd/sd-netlink.h
@@ -204,6 +204,7 @@ int sd_rtnl_message_routing_policy_rule_get_flags(sd_netlink_message *m, unsigne
 /* genl */
 int sd_genl_socket_open(sd_netlink **nl);
 int sd_genl_message_new(sd_netlink *nl, sd_genl_family family, uint8_t cmd, sd_netlink_message **m);
+int sd_genl_message_get_family(sd_netlink *nl, sd_netlink_message *m, sd_genl_family *family);
 
 /* slot */
 sd_netlink_slot *sd_netlink_slot_ref(sd_netlink_slot *nl);