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wpa_supplicant: Support 'relog' command to re-open log files

Browse source 
This allows rolling log files:

mv log.txt log.txt.1
wpa_cli relog

Signed-off-by: Ben Greear <greearb@candelatech.com>
This commit is contained in:
Ben Greear 2011-02-06 20:15:19 +02:00 committed by Jouni Malinen
parent 3103f34576
commit ac6912b5d1
4 changed files with 47 additions and 0 deletions
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34
src/utils/wpa_debug.c
View file

@ -273,11 +273,43 @@ void wpa_hexdump_ascii_key(int level, const char *title, const u8 *buf,
}
#ifdef CONFIG_DEBUG_FILE
static char *last_path = NULL;
#endif /* CONFIG_DEBUG_FILE */
int wpa_debug_reopen_file(void)
{
#ifdef CONFIG_DEBUG_FILE
int rv;
if (last_path) {
char *tmp = os_strdup(last_path);
wpa_debug_close_file();
rv = wpa_debug_open_file(tmp);
os_free(tmp);
} else {
wpa_printf(MSG_ERROR, "Last-path was not set, cannot "
"re-open log file.");
rv = -1;
}
return rv;
#else /* CONFIG_DEBUG_FILE */
return 0;
#endif /* CONFIG_DEBUG_FILE */
}
int wpa_debug_open_file(const char *path)
{
#ifdef CONFIG_DEBUG_FILE
if (!path)
return 0;
if (last_path == NULL || os_strcmp(last_path, path) != 0) {
/* Save our path to enable re-open */
os_free(last_path);
last_path = os_strdup(path);
}
out_file = fopen(path, "a");
if (out_file == NULL) {
wpa_printf(MSG_ERROR, "wpa_debug_open_file: Failed to open "
@ -299,6 +331,8 @@ void wpa_debug_close_file(void)
return;
fclose(out_file);
out_file = NULL;
os_free(last_path);
last_path = NULL;
#endif /* CONFIG_DEBUG_FILE */
}

1
src/utils/wpa_debug.h
View file

@ -40,6 +40,7 @@ enum {
#else /* CONFIG_NO_STDOUT_DEBUG */
int wpa_debug_open_file(const char *path);
int wpa_debug_reopen_file(void);
void wpa_debug_close_file(void);
/**

3
wpa_supplicant/ctrl_iface.c
View file

@ -2785,6 +2785,9 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
if (os_strcmp(buf, "PING") == 0) {
os_memcpy(reply, "PONG\n", 5);
reply_len = 5;
} else if (os_strncmp(buf, "RELOG", 5) == 0) {
if (wpa_debug_reopen_file() < 0)
reply_len = -1;
} else if (os_strncmp(buf, "NOTE ", 5) == 0) {
wpa_printf(MSG_INFO, "NOTE: %s", buf + 5);
} else if (os_strcmp(buf, "MIB") == 0) {

9
wpa_supplicant/wpa_cli.c
View file

@ -278,6 +278,12 @@ static int wpa_cli_cmd_ping(struct wpa_ctrl *ctrl, int argc, char *argv[])
}
static int wpa_cli_cmd_relog(struct wpa_ctrl *ctrl, int argc, char *argv[])
{
return wpa_ctrl_command(ctrl, "RELOG");
}
static int wpa_cli_cmd_note(struct wpa_ctrl *ctrl, int argc, char *argv[])
{
char cmd[256];
@ -2164,6 +2170,9 @@ static struct wpa_cli_cmd wpa_cli_commands[] = {
{ "ping", wpa_cli_cmd_ping,
cli_cmd_flag_none,
"= pings wpa_supplicant" },
{ "relog", wpa_cli_cmd_relog,
cli_cmd_flag_none,
"= re-open log-file (allow rolling logs)" },
{ "note", wpa_cli_cmd_note,
cli_cmd_flag_none,
"<text> = add a note to wpa_supplicant debug log" },