[PATCH v3 07/21] wpa_debug: Add utility functions for printing MLO link ID in hexdump

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Add support to print MLO link ID in hexdump debug prints.

Signed-off-by: Veerendranath Jakkam <quic_vjakkam@xxxxxxxxxxx>
---
 src/utils/wpa_debug.c | 56 ++++++++++++++++++++++++++++++-------------
 src/utils/wpa_debug.h |  6 +++++
 2 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/src/utils/wpa_debug.c b/src/utils/wpa_debug.c
index a338a2039..5d255cfed 100644
--- a/src/utils/wpa_debug.c
+++ b/src/utils/wpa_debug.c
@@ -255,16 +255,25 @@ void wpa_printf(int level, const char *fmt, ...)
 }
 
 
-static void _wpa_hexdump(int level, const char *title, const u8 *buf,
-			 size_t len, int show, int only_syslog)
+static void _wpa_hexdump(int level, int link_id, const char *title,
+			 const u8 *buf, size_t len, int show, int only_syslog)
 {
 	size_t i;
+	char link_id_str[20];
+
+	link_id_str[0] = '\0';
+	if (link_id >= 0 && link_id < 15) {
+		int ret = os_snprintf(link_id_str, sizeof(link_id_str),
+				      " link_id=%d", link_id);
+		if (os_snprintf_error(sizeof(link_id_str), ret))
+			link_id_str[0] = '\0';
+	}
 
 #ifdef CONFIG_DEBUG_LINUX_TRACING
 	if (wpa_debug_tracing_file != NULL) {
 		fprintf(wpa_debug_tracing_file,
-			WPAS_TRACE_PFX "%s - hexdump(len=%lu):",
-			level, title, (unsigned long) len);
+			WPAS_TRACE_PFX "%s - hexdump(len=%lu%s):",
+			level, title, (unsigned long) len, link_id_str);
 		if (buf == NULL) {
 			fprintf(wpa_debug_tracing_file, " [NULL]\n");
 		} else if (!show) {
@@ -311,9 +320,9 @@ static void _wpa_hexdump(int level, const char *title, const u8 *buf,
 
 		__android_log_print(wpa_to_android_level(level),
 				    ANDROID_LOG_NAME,
-				    "%s - hexdump(len=%lu):%s%s",
-				    title, (long unsigned int) len, display,
-				    len > slen ? " ..." : "");
+				    "%s - hexdump(len=%lu%s):%s%s",
+				    title, (long unsigned int) len, link_id_str,
+				    display, len > slen ? " ..." : "");
 		bin_clear_free(strbuf, 1 + 3 * slen);
 		return;
 	}
@@ -344,8 +353,8 @@ static void _wpa_hexdump(int level, const char *title, const u8 *buf,
 			display = " [REMOVED]";
 		}
 
-		syslog(syslog_priority(level), "%s - hexdump(len=%lu):%s",
-		       title, (unsigned long) len, display);
+		syslog(syslog_priority(level), "%s - hexdump(len=%lu%s):%s",
+		       title, (unsigned long) len, link_id_str, display);
 		bin_clear_free(strbuf, 1 + 3 * len);
 		if (only_syslog)
 			return;
@@ -354,8 +363,8 @@ static void _wpa_hexdump(int level, const char *title, const u8 *buf,
 	wpa_debug_print_timestamp();
 #ifdef CONFIG_DEBUG_FILE
 	if (out_file) {
-		fprintf(out_file, "%s - hexdump(len=%lu):",
-			title, (unsigned long) len);
+		fprintf(out_file, "%s - hexdump(len=%lu%s):",
+			title, (unsigned long) len, link_id_str);
 		if (buf == NULL) {
 			fprintf(out_file, " [NULL]");
 		} else if (show) {
@@ -368,7 +377,8 @@ static void _wpa_hexdump(int level, const char *title, const u8 *buf,
 	}
 #endif /* CONFIG_DEBUG_FILE */
 	if (!wpa_debug_syslog && !out_file) {
-		printf("%s - hexdump(len=%lu):", title, (unsigned long) len);
+		printf("%s - hexdump(len=%lu%s):", title, (unsigned long) len,
+		       link_id_str);
 		if (buf == NULL) {
 			printf(" [NULL]");
 		} else if (show) {
@@ -384,13 +394,27 @@ static void _wpa_hexdump(int level, const char *title, const u8 *buf,
 
 void wpa_hexdump(int level, const char *title, const void *buf, size_t len)
 {
-	_wpa_hexdump(level, title, buf, len, 1, 0);
+	_wpa_hexdump(level, -1, title, buf, len, 1, 0);
 }
 
 
 void wpa_hexdump_key(int level, const char *title, const void *buf, size_t len)
 {
-	_wpa_hexdump(level, title, buf, len, wpa_debug_show_keys, 0);
+	_wpa_hexdump(level, -1, title, buf, len, wpa_debug_show_keys, 0);
+}
+
+
+void wpa_hexdump_link(int level, u8 link_id, const char *title, const void *buf,
+		      size_t len)
+{
+	_wpa_hexdump(level, link_id, title, buf, len, 1, 0);
+}
+
+
+void wpa_hexdump_link_key(int level, u8 link_id, const char *title,
+			  const void *buf, size_t len)
+{
+	_wpa_hexdump(level, link_id, title, buf, len, wpa_debug_show_keys, 0);
 }
 
 
@@ -423,11 +447,11 @@ static void _wpa_hexdump_ascii(int level, const char *title, const void *buf,
 	if (level < wpa_debug_level)
 		return;
 #ifdef CONFIG_ANDROID_LOG
-	_wpa_hexdump(level, title, buf, len, show, 0);
+	_wpa_hexdump(level, -1, title, buf, len, show, 0);
 #else /* CONFIG_ANDROID_LOG */
 #ifdef CONFIG_DEBUG_SYSLOG
 	if (wpa_debug_syslog)
-		_wpa_hexdump(level, title, buf, len, show, 1);
+		_wpa_hexdump(level, -1, title, buf, len, show, 1);
 #endif /* CONFIG_DEBUG_SYSLOG */
 	wpa_debug_print_timestamp();
 #ifdef CONFIG_DEBUG_FILE
diff --git a/src/utils/wpa_debug.h b/src/utils/wpa_debug.h
index c6d5cc647..9f3f6443e 100644
--- a/src/utils/wpa_debug.h
+++ b/src/utils/wpa_debug.h
@@ -37,6 +37,8 @@ enum {
 #define wpa_debug_close_file() do { } while (0)
 #define wpa_debug_setup_stdout() do { } while (0)
 #define wpa_dbg(args...) do { } while (0)
+#define wpa_hexdump_link(l,li,t,b,le) do { } while (0)
+#define wpa_hexdump_link_key(l,li,t,b,le) do { } while (0)
 
 static inline int wpa_debug_reopen_file(void)
 {
@@ -85,6 +87,8 @@ PRINTF_FORMAT(2, 3);
  * configuration. The contents of buf is printed out has hex dump.
  */
 void wpa_hexdump(int level, const char *title, const void *buf, size_t len);
+void wpa_hexdump_link(int level, u8 link_id, const char *title, const void *buf,
+		      size_t len);
 
 static inline void wpa_hexdump_buf(int level, const char *title,
 				   const struct wpabuf *buf)
@@ -107,6 +111,8 @@ static inline void wpa_hexdump_buf(int level, const char *title,
  * etc.) in debug output.
  */
 void wpa_hexdump_key(int level, const char *title, const void *buf, size_t len);
+void wpa_hexdump_link_key(int level, u8 link_id, const char *title,
+			  const void *buf, size_t len);
 
 static inline void wpa_hexdump_buf_key(int level, const char *title,
 				       const struct wpabuf *buf)
-- 
2.25.1


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