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From cc3dae85bd694506cdea66ae532d452fb8716297 Mon Sep 17 00:00:00 2001
From: Wojciech Dubowik <Wojciech.Dubowik@neratec.com>
Date: Mon, 23 Jan 2017 13:55:04 +0100
Subject: [PATCH] hostapd: Add possibility to send debug messages to syslog
We can only send module specific messages to syslog and not debug
messages printed with wpa_printf. Add an extra command line parameter
'-s' to allow it. The feature is enabled with compile flag
CONFIG_DEBUG_SYSLOG as for wpa_supplicant and behaves in the same manner
as the wpa_supplicant -s command line argument.
Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@neratec.com>
---
hostapd/Android.mk | 4 ++++
hostapd/Makefile | 4 ++++
hostapd/defconfig | 3 +++
hostapd/main.c | 19 ++++++++++++++++++-
src/utils/wpa_debug.c | 2 +-
src/utils/wpa_debug.h | 3 +++
6 files changed, 33 insertions(+), 2 deletions(-)
--- a/hostapd/Android.mk
+++ b/hostapd/Android.mk
@@ -952,6 +952,10 @@ ifdef CONFIG_NO_STDOUT_DEBUG
L_CFLAGS += -DCONFIG_NO_STDOUT_DEBUG
endif
+ifdef CONFIG_DEBUG_SYSLOG
+L_CFLAGS += -DCONFIG_DEBUG_SYSLOG
+endif
+
ifdef CONFIG_DEBUG_LINUX_TRACING
L_CFLAGS += -DCONFIG_DEBUG_LINUX_TRACING
endif
--- a/hostapd/Makefile
+++ b/hostapd/Makefile
@@ -997,6 +997,10 @@ ifdef CONFIG_NO_STDOUT_DEBUG
CFLAGS += -DCONFIG_NO_STDOUT_DEBUG
endif
+ifdef CONFIG_DEBUG_SYSLOG
+CFLAGS += -DCONFIG_DEBUG_SYSLOG
+endif
+
ifdef CONFIG_DEBUG_LINUX_TRACING
CFLAGS += -DCONFIG_DEBUG_LINUX_TRACING
endif
--- a/hostapd/defconfig
+++ b/hostapd/defconfig
@@ -166,6 +166,9 @@ CONFIG_IPV6=y
# Disabled by default.
#CONFIG_DEBUG_FILE=y
+# Send debug messages to syslog instead of stdout
+#CONFIG_DEBUG_SYSLOG=y
+
# Add support for sending all debug messages (regardless of debug verbosity)
# to the Linux kernel tracing facility. This helps debug the entire stack by
# making it easy to record everything happening from the driver up into the
--- a/hostapd/main.c
+++ b/hostapd/main.c
@@ -108,6 +108,10 @@ static void hostapd_logger_cb(void *ctx,
module_str ? module_str : "",
module_str ? ": " : "", txt);
+#ifdef CONFIG_DEBUG_SYSLOG
+ if (wpa_debug_syslog)
+ conf_stdout = 0;
+#endif /* CONFIG_DEBUG_SYSLOG */
if ((conf_stdout & module) && level >= conf_stdout_level) {
wpa_debug_print_timestamp();
wpa_printf(MSG_INFO, "%s", format);
@@ -484,6 +488,9 @@ static void usage(void)
" (records all messages regardless of debug verbosity)\n"
#endif /* CONFIG_DEBUG_LINUX_TRACING */
" -i list of interface names to use\n"
+#ifdef CONFIG_DEBUG_SYSLOG
+ " -s log output to syslog instead of stdout\n"
+#endif /* CONFIG_DEBUG_SYSLOG */
" -S start all the interfaces synchronously\n"
" -t include timestamps in some debug messages\n"
" -v show hostapd version\n");
@@ -661,7 +668,7 @@ int main(int argc, char *argv[])
dl_list_init(&interfaces.global_ctrl_dst);
for (;;) {
- c = getopt(argc, argv, "b:Bde:f:hi:KP:STtu:vg:G:");
+ c = getopt(argc, argv, "b:Bde:f:hi:KP:sSTtu:vg:G:");
if (c < 0)
break;
switch (c) {
@@ -718,6 +725,11 @@ int main(int argc, char *argv[])
bss_config = tmp_bss;
bss_config[num_bss_configs++] = optarg;
break;
+#ifdef CONFIG_DEBUG_SYSLOG
+ case 's':
+ wpa_debug_syslog = 1;
+ break;
+#endif /* CONFIG_DEBUG_SYSLOG */
case 'S':
start_ifaces_in_sync = 1;
break;
@@ -746,6 +758,10 @@ int main(int argc, char *argv[])
wpa_debug_open_file(log_file);
else
wpa_debug_setup_stdout();
+#ifdef CONFIG_DEBUG_SYSLOG
+ if (wpa_debug_syslog)
+ wpa_debug_open_syslog();
+#endif /* CONFIG_DEBUG_SYSLOG */
#ifdef CONFIG_DEBUG_LINUX_TRACING
if (enable_trace_dbg) {
int tret = wpa_debug_open_linux_tracing();
@@ -882,6 +898,7 @@ int main(int argc, char *argv[])
hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
os_free(pid_file);
+ wpa_debug_close_syslog();
if (log_file)
wpa_debug_close_file();
wpa_debug_close_linux_tracing();
--- a/src/utils/wpa_debug.c
+++ b/src/utils/wpa_debug.c
@@ -13,7 +13,7 @@
#ifdef CONFIG_DEBUG_SYSLOG
#include <syslog.h>
-static int wpa_debug_syslog = 0;
+int wpa_debug_syslog = 0;
#endif /* CONFIG_DEBUG_SYSLOG */
#ifdef CONFIG_DEBUG_LINUX_TRACING
--- a/src/utils/wpa_debug.h
+++ b/src/utils/wpa_debug.h
@@ -14,6 +14,9 @@
extern int wpa_debug_level;
extern int wpa_debug_show_keys;
extern int wpa_debug_timestamp;
+#ifdef CONFIG_DEBUG_SYSLOG
+extern int wpa_debug_syslog;
+#endif /* CONFIG_DEBUG_SYSLOG */
/* Debugging function - conditional printf and hex dump. Driver wrappers can
* use these for debugging purposes. */
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