networkd: add minimal client tool "networkd" to query network status

[elogind.git] / src / network / sd-network.c

diff --git a/src/network/sd-network.c b/src/network/sd-network.c
index 91d6275056bf3eff87c8abd0124ccb4fac0f0cae..cc4b160e74e3598583d02c9ba5e66604364bda0a 100644 (file)
--- a/src/network/sd-network.c
+++ b/src/network/sd-network.c
@@ -107,62 +107,64 @@ _public_ int sd_network_get_link_operational_state(int ifindex, char **state) {
         return 0;
 }
 
-_public_ int sd_network_get_dhcp_lease(int ifindex, sd_dhcp_lease **ret) {
-        _cleanup_free_ char *p = NULL, *s = NULL;
-        sd_dhcp_lease *lease = NULL;
+_public_ int sd_network_get_link_llmnr(int ifindex, char **llmnr) {
+        _cleanup_free_ char *s = NULL, *p = NULL;
         int r;
 
         assert_return(ifindex > 0, -EINVAL);
-        assert_return(ret, -EINVAL);
+        assert_return(llmnr, -EINVAL);
 
         if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
                 return -ENOMEM;
 
-        r = parse_env_file(p, NEWLINE, "DHCP_LEASE", &s, NULL);
-
-        if (r < 0)
+        r = parse_env_file(p, NEWLINE, "LLMNR", &s, NULL);
+        if (r == -ENOENT)
+                return -ENODATA;
+        else if (r < 0)
                 return r;
         else if (!s)
-                return -EIO;
-
-        r = dhcp_lease_load(s, &lease);
-        if (r < 0)
-                return r;
+                return -ENODATA;
 
-        *ret = lease;
+        *llmnr = s;
+        s = NULL;
 
         return 0;
 }
 
-static int network_get_in_addr(const char *key, int ifindex, struct in_addr **addr) {
+_public_ int sd_network_get_link_dhcp_lease(int ifindex, sd_dhcp_lease **ret) {
         _cleanup_free_ char *p = NULL, *s = NULL;
+        sd_dhcp_lease *lease = NULL;
         int r;
 
         assert_return(ifindex > 0, -EINVAL);
-        assert_return(addr, -EINVAL);
+        assert_return(ret, -EINVAL);
 
         if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
                 return -ENOMEM;
 
-        r = parse_env_file(p, NEWLINE, key, &s, NULL);
+        r = parse_env_file(p, NEWLINE, "DHCP_LEASE", &s, NULL);
+
         if (r < 0)
                 return r;
         else if (!s)
                 return -EIO;
 
-        return deserialize_in_addrs(addr, s);
-}
+        r = dhcp_lease_load(s, &lease);
+        if (r < 0)
+                return r;
 
-_public_ int sd_network_get_dns(int ifindex, struct in_addr **addr) {
-        return network_get_in_addr("DNS", ifindex, addr);
+        *ret = lease;
+
+        return 0;
 }
 
-static int network_get_in6_addr(const char *key, int ifindex, struct in6_addr **addr) {
+static int network_get_link_strv(const char *key, int ifindex, char ***ret) {
         _cleanup_free_ char *p = NULL, *s = NULL;
+        _cleanup_strv_free_ char **a = NULL;
         int r;
 
         assert_return(ifindex > 0, -EINVAL);
-        assert_return(addr, -EINVAL);
+        assert_return(ret, -EINVAL);
 
         if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
                 return -ENOMEM;
@@ -170,40 +172,31 @@ static int network_get_in6_addr(const char *key, int ifindex, struct in6_addr **
         r = parse_env_file(p, NEWLINE, key, &s, NULL);
         if (r < 0)
                 return r;
-        else if (!s)
-                return -EIO;
-
-        return deserialize_in6_addrs(addr, s);
-}
-
-_public_ int sd_network_get_dns6(int ifindex, struct in6_addr **addr) {
-        return network_get_in6_addr("DNS", ifindex, addr);
-}
-
-static int network_get_boolean(const char *key, int ifindex) {
-        _cleanup_free_ char *p = NULL, *s = NULL;
-        int r;
+        else if (!s) {
+                *ret = NULL;
 
-        assert_return(ifindex > 0, -EINVAL);
+                return 0;
+        }
 
-        if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
+        a = strv_split(s, " ");
+        if (!a)
                 return -ENOMEM;
 
-        r = parse_env_file(p, NEWLINE, key, &s, NULL);
-        if (r < 0)
-                return r;
-        else if (!s)
-                return false;
+        strv_uniq(a);
+        r = strv_length(a);
+
+        *ret = a;
+        a = NULL;
 
-        return parse_boolean(s);
+        return r;
 }
 
-_public_ int sd_network_dhcp_use_dns(int ifindex) {
-        return network_get_boolean("DHCP_USE_DNS", ifindex);
+_public_ int sd_network_get_link_dns(int ifindex, char ***ret) {
+        return network_get_link_strv("DNS", ifindex, ret);
 }
 
-_public_ int sd_network_dhcp_use_ntp(int ifindex) {
-        return network_get_boolean("DHCP_USE_NTP", ifindex);
+_public_ int sd_network_get_link_ntp(int ifindex, char ***ret) {
+        return network_get_link_strv("NTP", ifindex, ret);
 }
 
 static inline int MONITOR_TO_FD(sd_network_monitor *m) {