[Asterisk-code-review] res pjsip: Use reasonable buffer lengths for endpoint identi... (asterisk[13])

[Sean Bright]

Sean Bright has uploaded this change for review. ( https://gerrit.asterisk.org/7263


Change subject: res_pjsip: Use reasonable buffer lengths for endpoint identification
......................................................................

res_pjsip: Use reasonable buffer lengths for endpoint identification

Domains themselves can be up to 255 characters long (per RFC 1035), so
our current buffer sizes are wholly inadequate for many use cases.

Change-Id: If3f30a68307f1365a1fe06bc4b854c62842c9292
---
M res/res_pjsip_endpoint_identifier_anonymous.c
M res/res_pjsip_endpoint_identifier_user.c
2 files changed, 14 insertions(+), 5 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/63/7263/1

diff --git a/res/res_pjsip_endpoint_identifier_anonymous.c b/res/res_pjsip_endpoint_identifier_anonymous.c
index b931338..2fdcd14 100644
--- a/res/res_pjsip_endpoint_identifier_anonymous.c
+++ b/res/res_pjsip_endpoint_identifier_anonymous.c
@@ -56,9 +56,12 @@
 	return 0;
 }
 
+#define DOMAIN_NAME_LEN 255
+#define USERNAME_LEN    255
+
 static struct ast_sip_endpoint *anonymous_identify(pjsip_rx_data *rdata)
 {
-	char domain_name[64], id[AST_UUID_STR_LEN];
+	char domain_name[DOMAIN_NAME_LEN + 1];
 	struct ast_sip_endpoint *endpoint;
 	RAII_VAR(struct ast_sip_domain_alias *, alias, NULL, ao2_cleanup);
 	RAII_VAR(struct ao2_container *, transport_states, NULL, ao2_cleanup);
@@ -70,6 +73,8 @@
 	}
 
 	if (!ast_sip_get_disable_multi_domain()) {
+		char id[DOMAIN_NAME_LEN + USERNAME_LEN + sizeof("@")];
+
 		/* Attempt to find the endpoint given the name and domain provided */
 		snprintf(id, sizeof(id), "anonymous@%s", domain_name);
 		if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
diff --git a/res/res_pjsip_endpoint_identifier_user.c b/res/res_pjsip_endpoint_identifier_user.c
index 30da062..b79dcb5 100644
--- a/res/res_pjsip_endpoint_identifier_user.c
+++ b/res/res_pjsip_endpoint_identifier_user.c
@@ -74,10 +74,12 @@
 	return 0;
 }
 
+#define DOMAIN_NAME_LEN 255
+#define USERNAME_LEN    255
+
 static struct ast_sip_endpoint *find_endpoint(pjsip_rx_data *rdata, char *endpoint_name,
 	char *domain_name)
 {
-	char id[AST_UUID_STR_LEN];
 	struct ast_sip_endpoint *endpoint;
 	RAII_VAR(struct ast_sip_domain_alias *, alias, NULL, ao2_cleanup);
 	RAII_VAR(struct ao2_container *, transport_states, NULL, ao2_cleanup);
@@ -85,6 +87,8 @@
 	RAII_VAR(struct ast_sip_transport *, transport, NULL, ao2_cleanup);
 
 	if (!ast_sip_get_disable_multi_domain()) {
+		char id[DOMAIN_NAME_LEN + USERNAME_LEN + sizeof("@")];
+
 		/* Attempt to find the endpoint given the name and domain provided */
 		snprintf(id, sizeof(id), "%s@%s", endpoint_name, domain_name);
 		if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
@@ -116,8 +120,8 @@
 
 static struct ast_sip_endpoint *username_identify(pjsip_rx_data *rdata)
 {
-	char username[64];
-	char domain[64];
+	char username[USERNAME_LEN + 1];
+	char domain[DOMAIN_NAME_LEN + 1];
 	struct ast_sip_endpoint *endpoint;
 
 	if (get_from_header(rdata, username, sizeof(username), domain, sizeof(domain))) {
@@ -149,7 +153,7 @@
 
 static struct ast_sip_endpoint *auth_username_identify(pjsip_rx_data *rdata)
 {
-	char username[64], realm[64];
+	char username[USERNAME_LEN + 1], realm[DOMAIN_NAME_LEN + 1];
 	struct ast_sip_endpoint *endpoint;
 	pjsip_authorization_hdr *auth_header = NULL;
 

-- 
To view, visit https://gerrit.asterisk.org/7263
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Gerrit-Project: asterisk
Gerrit-Branch: 13
Gerrit-MessageType: newchange
Gerrit-Change-Id: If3f30a68307f1365a1fe06bc4b854c62842c9292
Gerrit-Change-Number: 7263
Gerrit-PatchSet: 1
Gerrit-Owner: Sean Bright <sean.bright at gmail.com>
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