Increase buffers for hotplug and cmdline for UML

Thanks to Markus Stenberg for debugging and testing.

Signed-off-by: Steven Barth <steven@midlink.org>

diff --git a/initd/init.c b/initd/init.c
index 7621b30..153b3c2 100644 (file)
--- a/initd/init.c
+++ b/initd/init.c
@@ -53,7 +53,7 @@ static struct sigaction sa_shutdown = {
 static void
 cmdline(void)
 {
-       char line[256];
+       char line[1024];
        int r, fd = open("/proc/cmdline", O_RDONLY);
        regex_t pat_cmdline;
        regmatch_t matches[2];

diff --git a/plug/hotplug.c b/plug/hotplug.c
index 07abaf8..075062b 100644 (file)
--- a/plug/hotplug.c
+++ b/plug/hotplug.c
@@ -453,6 +453,7 @@ void hotplug_last_event(uloop_timeout_handler handler)
 void hotplug(char *rules)
 {
        struct sockaddr_nl nls;
+       int nlbufsize = 512 * 1024;
 
        rule_file = strdup(rules);
        memset(&nls,0,sizeof(struct sockaddr_nl));
@@ -469,6 +470,11 @@ void hotplug(char *rules)
                exit(1);
        }
 
+       if (setsockopt(hotplug_fd.fd, SOL_SOCKET, SO_RCVBUFFORCE, &nlbufsize, sizeof(nlbufsize))) {
+               ERROR("Failed to resize receive buffer: %s\n", strerror(errno));
+               exit(1);
+       }
+
        json_script_init(&jctx);
        queue_proc.cb = queue_proc_cb;
        uloop_fd_add(&hotplug_fd, ULOOP_READ);