diff mbox series

[ubus] ubusd: log ACL init errors

Message ID 20210820163946.21341-1-zajec5@gmail.com
State Accepted
Delegated to: Rafał Miłecki
Headers show
Series [ubus] ubusd: log ACL init errors | expand

Commit Message

Rafał Miłecki Aug. 20, 2021, 4:39 p.m. UTC
From: Rafał Miłecki <rafal@milecki.pl>

This makes it easier to notice ubusd (and so often a system) failing to
start properly. Some users reported procd failing to initialize fully
without a clear error with faulty /etc/passwd.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 ubusd_acl.c  | 13 ++++++++++---
 ubusd_main.c |  3 +++
 2 files changed, 13 insertions(+), 3 deletions(-)

Comments

Rafał Miłecki Aug. 20, 2021, 4:42 p.m. UTC | #1
On 20.08.2021 18:39, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@milecki.pl>
> 
> This makes it easier to notice ubusd (and so often a system) failing to
> start properly. Some users reported procd failing to initialize fully
> without a clear error with faulty /etc/passwd.
> 
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

Search for "procd: Connection to ubus failed" to find users reporting
this problem.

https://forum.openwrt.org/t/master-nginx-boot-hangs-at-loading-kernel-after-sysupgrade/78151
https://forum.openwrt.org/t/uap-ac-pro-not-reachable-after-first-bootup/78132
https://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg55382.html
https://freenode.irclog.whitequark.org/openwrt-devel/2021-03-04
John Crispin Aug. 20, 2021, 5:50 p.m. UTC | #2
On 20.08.21 18:39, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@milecki.pl>
>
> This makes it easier to notice ubusd (and so often a system) failing to
> start properly. Some users reported procd failing to initialize fully
> without a clear error with faulty /etc/passwd.
>
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: John Crispin <john@phrozen.org>
> ---
>   ubusd_acl.c  | 13 ++++++++++---
>   ubusd_main.c |  3 +++
>   2 files changed, 13 insertions(+), 3 deletions(-)
>
> diff --git a/ubusd_acl.c b/ubusd_acl.c
> index e050e2c..352c581 100644
> --- a/ubusd_acl.c
> +++ b/ubusd_acl.c
> @@ -26,6 +26,7 @@
>   #include <libubox/vlist.h>
>   #include <libubox/blobmsg_json.h>
>   #include <libubox/avl-cmp.h>
> +#include <libubox/ulog.h>
>   
>   #include "ubusd.h"
>   
> @@ -175,19 +176,25 @@ ubusd_acl_init_client(struct ubus_client *cl, int fd)
>   #ifdef SO_PEERCRED
>   	unsigned int len = sizeof(struct ucred);
>   
> -	if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len) == -1)
> +	if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len) == -1) {
> +		ULOG_ERR("Failed getsockopt(): %m\n");
>   		return -1;
> +	}
>   #else
>   	memset(&cred, 0, sizeof(cred));
>   #endif
>   
>   	pwd = getpwuid(cred.uid);
> -	if (!pwd)
> +	if (!pwd) {
> +		ULOG_ERR("Failed getpwuid(): %m\n");
>   		return -1;
> +	}
>   
>   	group = getgrgid(cred.gid);
> -	if (!group)
> +	if (!group) {
> +		ULOG_ERR("Failed getgrgid(): %m\n");
>   		return -1;
> +	}
>   
>   	cl->uid = cred.uid;
>   	cl->gid = cred.gid;
> diff --git a/ubusd_main.c b/ubusd_main.c
> index d454b1a..6b132ce 100644
> --- a/ubusd_main.c
> +++ b/ubusd_main.c
> @@ -233,6 +233,8 @@ static void mkdir_sockdir()
>   	free(ubus_sock_dir);
>   }
>   
> +#include <libubox/ulog.h>
> +
>   int main(int argc, char **argv)
>   {
>   	const char *ubus_socket = UBUS_UNIX_SOCKET;
> @@ -242,6 +244,7 @@ int main(int argc, char **argv)
>   	signal(SIGPIPE, SIG_IGN);
>   	signal(SIGHUP, sighup_handler);
>   
> +	ulog_open(ULOG_KMSG | ULOG_SYSLOG, LOG_DAEMON, "ubusd");
>   	openlog("ubusd", LOG_PID, LOG_DAEMON);
>   	uloop_init();
>
diff mbox series

Patch

diff --git a/ubusd_acl.c b/ubusd_acl.c
index e050e2c..352c581 100644
--- a/ubusd_acl.c
+++ b/ubusd_acl.c
@@ -26,6 +26,7 @@ 
 #include <libubox/vlist.h>
 #include <libubox/blobmsg_json.h>
 #include <libubox/avl-cmp.h>
+#include <libubox/ulog.h>
 
 #include "ubusd.h"
 
@@ -175,19 +176,25 @@  ubusd_acl_init_client(struct ubus_client *cl, int fd)
 #ifdef SO_PEERCRED
 	unsigned int len = sizeof(struct ucred);
 
-	if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len) == -1)
+	if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len) == -1) {
+		ULOG_ERR("Failed getsockopt(): %m\n");
 		return -1;
+	}
 #else
 	memset(&cred, 0, sizeof(cred));
 #endif
 
 	pwd = getpwuid(cred.uid);
-	if (!pwd)
+	if (!pwd) {
+		ULOG_ERR("Failed getpwuid(): %m\n");
 		return -1;
+	}
 
 	group = getgrgid(cred.gid);
-	if (!group)
+	if (!group) {
+		ULOG_ERR("Failed getgrgid(): %m\n");
 		return -1;
+	}
 
 	cl->uid = cred.uid;
 	cl->gid = cred.gid;
diff --git a/ubusd_main.c b/ubusd_main.c
index d454b1a..6b132ce 100644
--- a/ubusd_main.c
+++ b/ubusd_main.c
@@ -233,6 +233,8 @@  static void mkdir_sockdir()
 	free(ubus_sock_dir);
 }
 
+#include <libubox/ulog.h>
+
 int main(int argc, char **argv)
 {
 	const char *ubus_socket = UBUS_UNIX_SOCKET;
@@ -242,6 +244,7 @@  int main(int argc, char **argv)
 	signal(SIGPIPE, SIG_IGN);
 	signal(SIGHUP, sighup_handler);
 
+	ulog_open(ULOG_KMSG | ULOG_SYSLOG, LOG_DAEMON, "ubusd");
 	openlog("ubusd", LOG_PID, LOG_DAEMON);
 	uloop_init();