ifupdown: make dhcp start/stop scripts user configurable
in /etc/network/interfaces. Patch author is Gabriel L. Somlo <somlo@cmu.edu>
diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index 99b1c59..fae0684 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -452,6 +452,14 @@
static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
{
+ int i;
+
+ for (i = 0; i < ifd->n_options; i++) {
+ if (strcmp(ifd->option[i].name, "dhcp-start-cmd") == 0) {
+ return execute(ifd->option[i].value, ifd, exec);
+ }
+ }
+
if (execute("udhcpc -n -p /var/run/udhcpc.%iface%.pid -i "
"%iface% [[-H %hostname%]] [[-c %clientid%]]", ifd, exec)) return 1;
if (execute("pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]]", ifd, exec)) return 1;
@@ -463,6 +471,14 @@
static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
+ int i;
+
+ for (i = 0; i < ifd->n_options; i++) {
+ if (strcmp(ifd->option[i].name, "dhcp-stop-cmd") == 0) {
+ return execute(ifd->option[i].value, ifd, exec);
+ }
+ }
+
/* SIGUSR2 forces udhcpc to release the current lease and go inactive,
* and SIGTERM causes udhcpc to exit. Signals are queued and processed
* sequentially so we don't need to sleep */