summaryrefslogtreecommitdiff
path: root/src/libsystemd/sd-network/sd-network.c
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2014-08-12 15:05:21 +0200
committerLennart Poettering <lennart@poettering.net>2014-08-12 15:06:51 +0200
commit03cc0fd1431b82e59c11ae12a274c1f2df23169d (patch)
treeeae515ef2bcdb6cd8b1c19d1dee5668a43202c66 /src/libsystemd/sd-network/sd-network.c
parentf01e5736f1555eec9183e48448fa3454f265b73e (diff)
sd-network: add API to output all collected system-wide NTP and DNS servers
Also, output the collected information in "networkctl".
Diffstat (limited to 'src/libsystemd/sd-network/sd-network.c')
-rw-r--r--src/libsystemd/sd-network/sd-network.c89
1 files changed, 63 insertions, 26 deletions
diff --git a/src/libsystemd/sd-network/sd-network.c b/src/libsystemd/sd-network/sd-network.c
index 6375788c95..d2e608c79d 100644
--- a/src/libsystemd/sd-network/sd-network.c
+++ b/src/libsystemd/sd-network/sd-network.c
@@ -34,26 +34,19 @@
#include "sd-network.h"
#include "network-internal.h"
-_public_ int sd_network_get_link_state(int ifindex, char **state) {
- _cleanup_free_ char *s = NULL, *p = NULL;
+_public_ int sd_network_get_operational_state(char **state) {
+ _cleanup_free_ char *s = NULL;
int r;
- assert_return(ifindex > 0, -EINVAL);
assert_return(state, -EINVAL);
- if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
- return -ENOMEM;
-
- r = parse_env_file(p, NEWLINE, "ADMIN_STATE", &s, NULL);
+ r = parse_env_file("/run/systemd/netif/state", NEWLINE, "OPER_STATE", &s, NULL);
if (r == -ENOENT)
return -ENODATA;
- else if (r < 0)
+ if (r < 0)
return r;
- else if (!s)
- return -EIO;
-
- if (streq(s, "initializing"))
- return -EBUSY;
+ if (isempty(s))
+ return -ENODATA;
*state = s;
s = NULL;
@@ -61,20 +54,63 @@ _public_ int sd_network_get_link_state(int ifindex, char **state) {
return 0;
}
-_public_ int sd_network_get_operational_state(char **state) {
+static int network_get_strv(const char *key, char ***ret) {
+ _cleanup_strv_free_ char **a = NULL;
_cleanup_free_ char *s = NULL;
int r;
+ assert_return(ret, -EINVAL);
+
+ r = parse_env_file("/run/systemd/netif/state", NEWLINE, key, &s, NULL);
+ if (r == -ENOENT)
+ return -ENODATA;
+ if (r < 0)
+ return r;
+ if (isempty(s)) {
+ *ret = NULL;
+ return 0;
+ }
+
+ a = strv_split(s, " ");
+ if (!a)
+ return -ENOMEM;
+
+ strv_uniq(a);
+ r = strv_length(a);
+
+ *ret = a;
+ a = NULL;
+
+ return r;
+}
+
+_public_ int sd_network_get_dns(char ***ret) {
+ return network_get_strv("DNS", ret);
+}
+
+_public_ int sd_network_get_ntp(char ***ret) {
+ return network_get_strv("NTP", ret);
+}
+
+_public_ int sd_network_get_link_state(int ifindex, char **state) {
+ _cleanup_free_ char *s = NULL, *p = NULL;
+ int r;
+
+ assert_return(ifindex > 0, -EINVAL);
assert_return(state, -EINVAL);
- r = parse_env_file("/run/systemd/netif/state", NEWLINE, "OPER_STATE",
- &s, NULL);
+ if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, "ADMIN_STATE", &s, NULL);
if (r == -ENOENT)
return -ENODATA;
- else if (r < 0)
+ if (r < 0)
return r;
- else if (!s)
- return -EIO;
+ if (isempty(s))
+ return -ENODATA;
+ if (streq(s, "initializing"))
+ return -EBUSY;
*state = s;
s = NULL;
@@ -95,10 +131,10 @@ _public_ int sd_network_get_link_operational_state(int ifindex, char **state) {
r = parse_env_file(p, NEWLINE, "OPER_STATE", &s, NULL);
if (r == -ENOENT)
return -ENODATA;
- else if (r < 0)
+ if (r < 0)
return r;
- else if (!s)
- return -EIO;
+ if (isempty(s))
+ return -ENODATA;
*state = s;
s = NULL;
@@ -119,9 +155,9 @@ _public_ int sd_network_get_link_llmnr(int ifindex, char **llmnr) {
r = parse_env_file(p, NEWLINE, "LLMNR", &s, NULL);
if (r == -ENOENT)
return -ENODATA;
- else if (r < 0)
+ if (r < 0)
return r;
- else if (!s)
+ if (isempty(s))
return -ENODATA;
*llmnr = s;
@@ -142,11 +178,12 @@ static int network_get_link_strv(const char *key, int ifindex, char ***ret) {
return -ENOMEM;
r = parse_env_file(p, NEWLINE, key, &s, NULL);
+ if (r == -ENOENT)
+ return -ENODATA;
if (r < 0)
return r;
- else if (!s) {
+ if (isempty(s)) {
*ret = NULL;
-
return 0;
}