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Fix noncecount update (bug #5308, redone fix) 

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6746 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer 2005-10-12 04:35:10 +00:00
parent cc104b0066
commit c07a31e4bc
1 changed files with 44 additions and 31 deletions
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75
channels/chan_sip.c
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@ -191,6 +191,11 @@ enum sipmethod {
SIP_PUBLISH,
} sip_method_list;
enum sip_auth_type {
PROXY_AUTH,
WWW_AUTH,
};
static const struct cfsip_methods {
enum sipmethod id;
int need_rtp; /* when this is the 'primary' use for a pvt structure, does it need RTP? */
@ -455,10 +460,11 @@ struct sip_invite_param {
char *distinctive_ring;
char *osptoken;
int addsipheaders;
char *uri_options;
char *uri_options;
char *vxml_url;
char *auth;
char *authheader;
enum sip_auth_type auth_type;
};
struct sip_route {
@ -633,6 +639,7 @@ static struct sip_pvt {
char *rpid_from; /* Our RPID From header */
char realm[MAXHOSTNAMELEN]; /* Authorization realm */
char nonce[256]; /* Authorization nonce */
int noncecount; /* Nonce-count */
char opaque[256]; /* Opaque nonsense */
char qop[80]; /* Quality of Protection, since SIP wasn't complicated enough yet. */
char domain[MAXHOSTNAMELEN]; /* Authorization domain */
@ -818,6 +825,7 @@ struct sip_registry {
char domain[MAXHOSTNAMELEN]; /* Authorization domain */
char opaque[256]; /* Opaque nonsense */
char qop[80]; /* Quality of Protection. */
int noncecount; /* Nonce-count */
char lastmsg[256]; /* Last Message sent/received */
};
@ -5387,6 +5395,7 @@ static int transmit_register(struct sip_registry *r, int sipmethod, char *auth,
ast_copy_string(p->domain, r->domain, sizeof(p->domain));
ast_copy_string(p->opaque, r->opaque, sizeof(p->opaque));
ast_copy_string(p->qop, r->qop, sizeof(p->qop));
p->noncecount = r->noncecount++;
memset(digest,0,sizeof(digest));
if(!build_reply_digest(p, sipmethod, digest, sizeof(digest)))
@ -5518,9 +5527,14 @@ static int transmit_request_with_auth(struct sip_pvt *p, int sipmethod, int seqn
char digest[1024];
memset(digest, 0, sizeof(digest));
if(!build_reply_digest(p, sipmethod, digest, sizeof(digest)))
add_header(&resp, "Proxy-Authorization", digest);
else
if(!build_reply_digest(p, sipmethod, digest, sizeof(digest))) {
if (p->options && p->options->auth_type == PROXY_AUTH)
add_header(&resp, "Proxy-Authorization", digest);
else if (p->options && p->options->auth_type == WWW_AUTH)
add_header(&resp, "Authorization", digest);
else /* Default, to be backwards compatible (maybe being too careful, but leaving it for now) */
add_header(&resp, "Proxy-Authorization", digest);
} else
ast_log(LOG_WARNING, "No authentication available for call %s\n", p->callid);
}
/* If we are hanging up and know a cause for that, send it in clear text to make
@ -8808,6 +8822,7 @@ static int reply_digest(struct sip_pvt *p, struct sip_request *req,
{
char tmp[512];
char *c;
char oldnonce[256];
/* table of recognised keywords, and places where they should be copied */
const struct x {
@ -8833,6 +8848,7 @@ static int reply_digest(struct sip_pvt *p, struct sip_request *req,
c = tmp + strlen("Digest ");
for (i = keys; i->key != NULL; i++)
i->dst[0] = '\0'; /* init all to empty strings */
ast_copy_string(oldnonce, p->nonce, sizeof(oldnonce));
while (c && *(c = ast_skip_blanks(c))) { /* lookup for keys */
for (i = keys; i->key != NULL; i++) {
char *src, *separator;
@ -8854,16 +8870,22 @@ static int reply_digest(struct sip_pvt *p, struct sip_request *req,
if (i->key == NULL) /* not found, try ',' */
strsep(&c, ",");
}
/* Reset nonce count */
if (strcmp(p->nonce, oldnonce))
p->noncecount = 0;
/* Save auth data for following registrations */
if (p->registry) {
struct sip_registry *r = p->registry;
ast_copy_string(r->realm, p->realm, sizeof(r->realm));
ast_copy_string(r->nonce, p->nonce, sizeof(r->nonce));
ast_copy_string(r->domain, p->domain, sizeof(r->domain));
ast_copy_string(r->opaque, p->opaque, sizeof(r->opaque));
ast_copy_string(r->qop, p->qop, sizeof(r->qop));
if (strcmp(r->nonce, p->nonce)) {
ast_copy_string(r->realm, p->realm, sizeof(r->realm));
ast_copy_string(r->nonce, p->nonce, sizeof(r->nonce));
ast_copy_string(r->domain, p->domain, sizeof(r->domain));
ast_copy_string(r->opaque, p->opaque, sizeof(r->opaque));
ast_copy_string(r->qop, p->qop, sizeof(r->qop));
r->noncecount = 0;
}
}
return build_reply_digest(p, sipmethod, digest, digest_len);
}
@ -8922,16 +8944,16 @@ static int build_reply_digest(struct sip_pvt *p, int method, char* digest, int d
else
ast_md5_hash(a1_hash,a1);
ast_md5_hash(a2_hash,a2);
/* XXX We hard code the nonce-number to 1... What are the odds? Are we seriously going to keep
track of every nonce we've seen? Also we hard code to "auth"... XXX */
p->noncecount++;
if (!ast_strlen_zero(p->qop))
snprintf(resp,sizeof(resp),"%s:%s:%s:%s:%s:%s", a1_hash, p->nonce, "00000001", cnonce, "auth", a2_hash);
snprintf(resp,sizeof(resp),"%s:%s:%08x:%s:%s:%s", a1_hash, p->nonce, p->noncecount, cnonce, "auth", a2_hash);
else
snprintf(resp,sizeof(resp),"%s:%s:%s", a1_hash, p->nonce, a2_hash);
ast_md5_hash(resp_hash, resp);
/* XXX We hard code our qop to "auth" for now. XXX */
if (!ast_strlen_zero(p->qop))
snprintf(digest, digest_len, "Digest username=\"%s\", realm=\"%s\", algorithm=MD5, uri=\"%s\", nonce=\"%s\", response=\"%s\", opaque=\"%s\", qop=auth, cnonce=\"%s\", nc=00000001", username, p->realm, uri, p->nonce, resp_hash, p->opaque, cnonce);
snprintf(digest, digest_len, "Digest username=\"%s\", realm=\"%s\", algorithm=MD5, uri=\"%s\", nonce=\"%s\", response=\"%s\", opaque=\"%s\", qop=auth, cnonce=\"%s\", nc=%08x", username, p->realm, uri, p->nonce, resp_hash, p->opaque, cnonce, p->noncecount);
else
snprintf(digest, digest_len, "Digest username=\"%s\", realm=\"%s\", algorithm=MD5, uri=\"%s\", nonce=\"%s\", response=\"%s\", opaque=\"%s\"", username, p->realm, uri, p->nonce, resp_hash, p->opaque);
@ -9402,13 +9424,19 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
transmit_request(p, SIP_ACK, seqno, 0, 1);
check_pendings(p);
break;
case 407: /* Proxy authentication */
case 401: /* Www auth */
/* First we ACK */
transmit_request(p, SIP_ACK, seqno, 0, 0);
if (p->options)
p->options->auth_type = (resp == 401 ? WWW_AUTH : PROXY_AUTH);
/* Then we AUTH */
p->theirtag[0]='\0'; /* forget their old tag, so we don't match tags when getting response */
if (!ignore) {
if ((p->authtries == MAX_AUTHTRIES) || do_proxy_auth(p, req, "WWW-Authenticate", "Authorization", SIP_INVITE, 1)) {
char *authenticate = (resp == 401 ? "WWW-Authenticate" : "Proxy-Authenticate");
char *authorization = (resp == 401 ? "Authorization" : "Proxy-Authorization");
if ((p->authtries == MAX_AUTHTRIES) || do_proxy_auth(p, req, authenticate, authorization, SIP_INVITE, 1)) {
ast_log(LOG_NOTICE, "Failed to authenticate on INVITE to '%s'\n", get_header(&p->initreq, "From"));
ast_set_flag(p, SIP_NEEDDESTROY);
ast_set_flag(p, SIP_ALREADYGONE);
@ -9432,22 +9460,6 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
ast_set_flag(p, SIP_ALREADYGONE);
break;
case 407: /* Proxy authentication */
/* First we ACK */
transmit_request(p, SIP_ACK, seqno, 0, 0);
/* Then we AUTH */
/* But only if the packet wasn't marked as ignore in handle_request */
if (!ignore) {
p->theirtag[0]='\0'; /* forget their old tag, so we don't match tags when getting response */
if ((p->authtries == MAX_AUTHTRIES) || do_proxy_auth(p, req, "Proxy-Authenticate", "Proxy-Authorization", SIP_INVITE, 1)) {
ast_log(LOG_NOTICE, "Failed to authenticate on INVITE to '%s'\n", get_header(&p->initreq, "From"));
ast_set_flag(p, SIP_NEEDDESTROY);
if (p->owner)
ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
ast_set_flag(p, SIP_ALREADYGONE);
}
}
break;
case 481: /* Call leg does not exist */
/* Could be REFER or INVITE */
ast_log(LOG_WARNING, "Re-invite to non-existing call leg on other UA. SIP dialog '%s'. Giving up.\n", p->callid);
@ -9762,7 +9774,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
}
} else if (p->registry && sipmethod == SIP_REGISTER) {
res = handle_response_register(p, resp, rest, req, ignore, seqno);
} else
} else /* We can't handle this, giving up in a bad way */
ast_set_flag(p, SIP_NEEDDESTROY);
break;
@ -9869,6 +9881,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
case 407:
if (sipmethod == SIP_BYE || sipmethod == SIP_REFER) {
char *auth, *auth2;
if (resp == 407) {
auth = "Proxy-Authenticate";
auth2 = "Proxy-Authorization";