3:54 a.m.
For the actions ADD and OLD, split out creating the new lease object,
along with processing all the program args and environment variables
that are only needed in this case.
---
src/network/leaseshelper.c | 156 ++++++++++++++++++++++++++-------------------
1 file changed, 91 insertions(+), 65 deletions(-)
diff --git a/src/network/leaseshelper.c b/src/network/leaseshelper.c
index eb1c0c7..547e1d8 100644
--- a/src/network/leaseshelper.c
+++ b/src/network/leaseshelper.c
@@ -281,22 +281,102 @@ virLeasePrintLeases(virJSONValuePtr leases_array_new,
return ret;
}
+static int
+virLeaseNewFromArgv(virJSONValuePtr *lease_ret,
+ int argc,
+ char **argv,
+ const char *ip,
+ const char *server_duid)
+{
+ virJSONValuePtr lease_new = NULL;
+ const char *clientid = virGetEnvAllowSUID("DNSMASQ_CLIENT_ID");
+ const char *exptime_tmp = virGetEnvAllowSUID("DNSMASQ_LEASE_EXPIRES");
+ const char *hostname = virGetEnvAllowSUID("DNSMASQ_SUPPLIED_HOSTNAME");
+ const char *iaid = virGetEnvAllowSUID("DNSMASQ_IAID");
+ const char *mac = NULL;
+ long long expirytime = 0;
+ char *exptime = NULL;
+ int ret = -1;
+
+ /* In case hostname is known, it is the 5th argument */
+ if (argc == 5)
+ hostname = argv[4];
+
+ /* In case hostname is still unknown, use the last known one */
+ if (!hostname)
+ hostname = virGetEnvAllowSUID("DNSMASQ_OLD_HOSTNAME");
+
+ /* Check if it is an IPv6 lease */
+ if (iaid) {
+ mac = virGetEnvAllowSUID("DNSMASQ_MAC");
+ clientid = argv[2];
+ } else {
+ mac = argv[2];
+ }
+
+ if (!mac) {
+ ret = 0;
+ goto cleanup;
+ }
+
+ if (exptime_tmp) {
+ if (VIR_STRDUP(exptime, exptime_tmp) < 0)
+ goto cleanup;
+
+ /* Removed extraneous trailing space in DNSMASQ_LEASE_EXPIRES
+ * (dnsmasq < 2.52) */
+ if (exptime[strlen(exptime) - 1] == ' ')
+ exptime[strlen(exptime) - 1] = '\0';
+ }
+
+ if (!exptime ||
+ virStrToLong_ll(exptime, NULL, 10, &expirytime) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Unable to convert lease expiry time to long long:
%s"),
+ NULLSTR(exptime));
+ goto cleanup;
+ }
+
+ /* Create new lease */
+ if (!(lease_new = virJSONValueNewObject())) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("failed to create json"));
+ goto cleanup;
+ }
+
+ if (iaid && virJSONValueObjectAppendString(lease_new, "iaid", iaid)
< 0)
+ goto cleanup;
+ if (ip && virJSONValueObjectAppendString(lease_new, "ip-address",
ip) < 0)
+ goto cleanup;
+ if (mac && virJSONValueObjectAppendString(lease_new, "mac-address",
mac) < 0)
+ goto cleanup;
+ if (hostname && virJSONValueObjectAppendString(lease_new,
"hostname", hostname) < 0)
+ goto cleanup;
+ if (clientid && virJSONValueObjectAppendString(lease_new,
"client-id", clientid) < 0)
+ goto cleanup;
+ if (server_duid && virJSONValueObjectAppendString(lease_new,
"server-duid", server_duid) < 0)
+ goto cleanup;
+ if (expirytime && virJSONValueObjectAppendNumberLong(lease_new,
"expiry-time", expirytime) < 0)
+ goto cleanup;
+
+ ret = 0;
+ *lease_ret = lease_new;
+ lease_new = NULL;
+ cleanup:
+ VIR_FREE(exptime);
+ virJSONValueFree(lease_new);
+ return ret;
+}
+
int
main(int argc, char **argv)
{
- char *exptime = NULL;
char *pid_file = NULL;
char *custom_lease_file = NULL;
const char *ip = NULL;
- const char *mac = NULL;
const char *leases_str = NULL;
- const char *iaid = virGetEnvAllowSUID("DNSMASQ_IAID");
- const char *clientid = virGetEnvAllowSUID("DNSMASQ_CLIENT_ID");
const char *interface = virGetEnvAllowSUID("DNSMASQ_INTERFACE");
- const char *exptime_tmp = virGetEnvAllowSUID("DNSMASQ_LEASE_EXPIRES");
- const char *hostname = virGetEnvAllowSUID("DNSMASQ_SUPPLIED_HOSTNAME");
char *server_duid = NULL;
- long long expirytime = 0;
int action = -1;
int pid_file_fd = -1;
int rv = EXIT_FAILURE;
@@ -347,37 +427,12 @@ main(int argc, char **argv)
goto cleanup;
ip = argv[3];
- mac = argv[2];
if ((action = virLeaseActionTypeFromString(argv[1])) < 0) {
fprintf(stderr, _("Unsupported action: %s\n"), argv[1]);
exit(EXIT_FAILURE);
}
- /* In case hostname is known, it is the 5th argument */
- if (argc == 5)
- hostname = argv[4];
-
- /* In case hostname is still unknown, use the last known one */
- if (!hostname)
- hostname = virGetEnvAllowSUID("DNSMASQ_OLD_HOSTNAME");
-
- if (exptime_tmp) {
- if (VIR_STRDUP(exptime, exptime_tmp) < 0)
- goto cleanup;
-
- /* Removed extraneous trailing space in DNSMASQ_LEASE_EXPIRES
- * (dnsmasq < 2.52) */
- if (exptime[strlen(exptime) - 1] == ' ')
- exptime[strlen(exptime) - 1] = '\0';
- }
-
- /* Check if it is an IPv6 lease */
- if (iaid) {
- mac = virGetEnvAllowSUID("DNSMASQ_MAC");
- clientid = argv[2];
- }
-
if (VIR_STRDUP(server_duid, virGetEnvAllowSUID("DNSMASQ_SERVER_DUID")) <
0)
goto cleanup;
@@ -401,6 +456,9 @@ main(int argc, char **argv)
switch ((enum virLeaseActionFlags) action) {
case VIR_LEASE_ACTION_ADD:
case VIR_LEASE_ACTION_OLD:
+ /* Create new lease */
+ if (virLeaseNewFromArgv(&lease_new, argc, argv, ip, server_duid) < 0)
+ goto cleanup;
/* Custom ipv6 leases *will not* be created if the env-var DNSMASQ_MAC
* is not set. In the special case, when the $(interface).status file
* is not already present and dnsmasq is (re)started, the corresponding
@@ -414,40 +472,9 @@ main(int argc, char **argv)
* the new lease will be created irrespective of whether the MACID is
* known or not.
*/
- if (!mac)
+ if (!lease_new)
break;
- /* Create new lease */
- if (!(lease_new = virJSONValueNewObject())) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to create json"));
- goto cleanup;
- }
-
- if (!exptime ||
- virStrToLong_ll(exptime, NULL, 10, &expirytime) < 0) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Unable to convert lease expiry time to long long:
%s"),
- NULLSTR(exptime));
- goto cleanup;
- }
-
- if (iaid && virJSONValueObjectAppendString(lease_new, "iaid",
iaid) < 0)
- goto cleanup;
- if (ip && virJSONValueObjectAppendString(lease_new,
"ip-address", ip) < 0)
- goto cleanup;
- if (mac && virJSONValueObjectAppendString(lease_new,
"mac-address", mac) < 0)
- goto cleanup;
- if (hostname && virJSONValueObjectAppendString(lease_new,
"hostname", hostname) < 0)
- goto cleanup;
- if (clientid && virJSONValueObjectAppendString(lease_new,
"client-id", clientid) < 0)
- goto cleanup;
- if (server_duid && virJSONValueObjectAppendString(lease_new,
"server-duid", server_duid) < 0)
- goto cleanup;
- if (expirytime && virJSONValueObjectAppendNumberLong(lease_new,
"expiry-time", expirytime) < 0)
- goto cleanup;
-
-
/* fallthrough */
case VIR_LEASE_ACTION_DEL:
/* Delete the corresponding lease, if it already exists */
@@ -510,7 +537,6 @@ main(int argc, char **argv)
virPidFileReleasePath(pid_file, pid_file_fd);
VIR_FREE(pid_file);
- VIR_FREE(exptime);
VIR_FREE(server_duid);
VIR_FREE(custom_lease_file);
virJSONValueFree(lease_new);
--
2.4.6