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Formatting and doxygen improvements

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@343492 65c4cc65-6c06-0410-ace0-fbb531ad65f3
certified/11.2
Olle Johansson 14 years ago
parent c580b163b5
commit 816dc295c2
2 changed files with 63 additions and 32 deletions
Show Stats Download Patch File Download Diff File

22
include/asterisk/tcptls.h
Unescape View File

@ -25,8 +25,10 @@
* in or out the DO_SSL macro.
*
* TLS/SSL support is basically implemented by reading from a config file
* (currently http.conf and sip.conf) the names of the certificate and cipher to use,
* and then run ssl_setup() to create an appropriate SSL_CTX (ssl_ctx)
* (currently manager.conf, http.conf and sip.conf) the names of the certificate
* files and cipher to use, and then run ssl_setup() to create an appropriate
* data structure named ssl_ctx.
*
* If we support multiple domains, presumably we need to read multiple
* certificates.
*
@ -42,6 +44,11 @@
* and their setup should be moved to a more central place, e.g. asterisk.conf
* and the source files that processes it. Similarly, ssl_setup() should
* be run earlier in the startup process so modules have it available.
*
* \ref AstTlsOverview
*
* \todo For SIP, the SubjectAltNames should be checked on verification
* of the certificate. (Check RFC 5922)
*
*/
@ -93,7 +100,8 @@ struct ast_tls_config {
SSL_CTX *ssl_ctx;
};
/*!
/*! \page AstTlsOverview TLS Implementation Overview
*
* The following code implements a generic mechanism for starting
* services on a TCP or TLS socket.
* The service is configured in the struct session_args, and
@ -135,13 +143,13 @@ struct ast_tcptls_session_args {
const char *name;
};
/*
/*! \brief
* describes a server instance
*/
struct ast_tcptls_session_instance {
FILE *f; /* fopen/funopen result */
int fd; /* the socket returned by accept() */
SSL *ssl; /* ssl state */
FILE *f; /*!< fopen/funopen result */
int fd; /*!< the socket returned by accept() */
SSL *ssl; /*!< ssl state */
/* iint (*ssl_setup)(SSL *); */
int client;
struct ast_sockaddr remote_address;

73
main/tcptls.c
Unescape View File

@ -56,8 +56,9 @@ static HOOK_T ssl_read(void *cookie, char *buf, LEN_T len)
{
int i = SSL_read(cookie, buf, len-1);
#if 0
if (i >= 0)
if (i >= 0) {
buf[i] = '\0';
}
ast_verb(0, "ssl read size %d returns %d <%s>\n", (int)len, i, buf);
#endif
return i;
@ -67,6 +68,7 @@ static HOOK_T ssl_write(void *cookie, const char *buf, LEN_T len)
{
#if 0
char *s = alloca(len+1);
strncpy(s, buf, len);
s[len] = '\0';
ast_verb(0, "ssl write size %d <%s>\n", (int)len, s);
@ -92,8 +94,9 @@ HOOK_T ast_tcptls_server_read(struct ast_tcptls_session_instance *tcptls_session
}
#ifdef DO_SSL
if (tcptls_session->ssl)
if (tcptls_session->ssl) {
return ssl_read(tcptls_session->ssl, buf, count);
}
#endif
return read(tcptls_session->fd, buf, count);
}
@ -107,8 +110,9 @@ HOOK_T ast_tcptls_server_write(struct ast_tcptls_session_instance *tcptls_sessio
}
#ifdef DO_SSL
if (tcptls_session->ssl)
if (tcptls_session->ssl) {
return ssl_write(tcptls_session->ssl, buf, count);
}
#endif
return write(tcptls_session->fd, buf, count);
}
@ -169,11 +173,13 @@ static void *handle_tcptls_connection(void *data)
X509 *peer;
long res;
peer = SSL_get_peer_certificate(tcptls_session->ssl);
if (!peer)
if (!peer) {
ast_log(LOG_WARNING, "No peer SSL certificate\n");
}
res = SSL_get_verify_result(tcptls_session->ssl);
if (res != X509_V_OK)
if (res != X509_V_OK) {
ast_log(LOG_ERROR, "Certificate did not verify: %s\n", X509_verify_cert_error_string(res));
}
if (!ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_IGNORE_COMMON_NAME)) {
ASN1_STRING *str;
unsigned char *str2;
@ -185,36 +191,42 @@ static void *handle_tcptls_connection(void *data)
/* Walk the certificate to check all available "Common Name" */
/* XXX Probably should do a gethostbyname on the hostname and compare that as well */
pos = X509_NAME_get_index_by_NID(name, NID_commonName, pos);
if (pos < 0)
if (pos < 0) {
break;
}
str = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, pos));
ASN1_STRING_to_UTF8(&str2, str);
if (str2) {
if (!strcasecmp(tcptls_session->parent->hostname, (char *) str2))
if (!strcasecmp(tcptls_session->parent->hostname, (char *) str2)) {
found = 1;
}
ast_debug(3, "SSL Common Name compare s1='%s' s2='%s'\n", tcptls_session->parent->hostname, str2);
OPENSSL_free(str2);
}
if (found)
if (found) {
break;
}
}
if (!found) {
ast_log(LOG_ERROR, "Certificate common name did not match (%s)\n", tcptls_session->parent->hostname);
if (peer)
if (peer) {
X509_free(peer);
}
close(tcptls_session->fd);
fclose(tcptls_session->f);
ao2_ref(tcptls_session, -1);
return NULL;
}
}
if (peer)
if (peer) {
X509_free(peer);
}
}
}
if (!tcptls_session->f) /* no success opening descriptor stacking */
if (!tcptls_session->f) { /* no success opening descriptor stacking */
SSL_free(tcptls_session->ssl);
}
}
}
#endif /* DO_SSL */
if (!tcptls_session->f) {
@ -222,17 +234,18 @@ static void *handle_tcptls_connection(void *data)
ast_log(LOG_WARNING, "FILE * open failed!\n");
#ifndef DO_SSL
if (tcptls_session->parent->tls_cfg) {
ast_log(LOG_WARNING, "Attempted a TLS connection without OpenSSL support. This will not work!\n");
ast_log(LOG_WARNING, "Attempted a TLS connection without OpenSSL support. This will not work!\n");
}
#endif
ao2_ref(tcptls_session, -1);
return NULL;
}
if (tcptls_session && tcptls_session->parent->worker_fn)
if (tcptls_session && tcptls_session->parent->worker_fn) {
return tcptls_session->parent->worker_fn(tcptls_session);
else
} else {
return tcptls_session;
}
}
void *ast_tcptls_server_root(void *data)
@ -246,15 +259,18 @@ void *ast_tcptls_server_root(void *data)
for (;;) {
int i, flags;
if (desc->periodic_fn)
if (desc->periodic_fn) {
desc->periodic_fn(desc);
}
i = ast_wait_for_input(desc->accept_fd, desc->poll_timeout);
if (i <= 0)
if (i <= 0) {
continue;
}
fd = ast_accept(desc->accept_fd, &addr);
if (fd < 0) {
if ((errno != EAGAIN) && (errno != EINTR))
if ((errno != EAGAIN) && (errno != EINTR)) {
ast_log(LOG_WARNING, "Accept failed: %s\n", strerror(errno));
}
continue;
}
tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor);
@ -290,8 +306,9 @@ static int __ssl_setup(struct ast_tls_config *cfg, int client)
cfg->enabled = 0;
return 0;
#else
if (!cfg->enabled)
if (!cfg->enabled) {
return 0;
}
SSL_load_error_strings();
SSLeay_add_ssl_algorithms();
@ -355,8 +372,9 @@ static int __ssl_setup(struct ast_tls_config *cfg, int client)
}
}
if (!ast_strlen_zero(cfg->cafile) || !ast_strlen_zero(cfg->capath)) {
if (SSL_CTX_load_verify_locations(cfg->ssl_ctx, S_OR(cfg->cafile, NULL), S_OR(cfg->capath,NULL)) == 0)
if (SSL_CTX_load_verify_locations(cfg->ssl_ctx, S_OR(cfg->cafile, NULL), S_OR(cfg->capath,NULL)) == 0) {
ast_verb(0, "SSL CA file(%s)/path(%s) error\n", cfg->cafile, cfg->capath);
}
}
ast_verb(0, "SSL certificate ok\n");
@ -420,8 +438,9 @@ struct ast_tcptls_session_instance *ast_tcptls_client_create(struct ast_tcptls_s
/* If we return early, there is no connection */
ast_sockaddr_setnull(&desc->old_address);
if (desc->accept_fd != -1)
if (desc->accept_fd != -1) {
close(desc->accept_fd);
}
desc->accept_fd = socket(ast_sockaddr_is_ipv6(&desc->remote_address) ?
AF_INET6 : AF_INET, SOCK_STREAM, IPPROTO_TCP);
@ -444,8 +463,9 @@ struct ast_tcptls_session_instance *ast_tcptls_client_create(struct ast_tcptls_s
}
}
if (!(tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor)))
if (!(tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor))) {
goto error;
}
ast_mutex_init(&tcptls_session->lock);
tcptls_session->client = 1;
@ -462,8 +482,9 @@ struct ast_tcptls_session_instance *ast_tcptls_client_create(struct ast_tcptls_s
error:
close(desc->accept_fd);
desc->accept_fd = -1;
if (tcptls_session)
if (tcptls_session) {
ao2_ref(tcptls_session, -1);
}
return NULL;
}
@ -488,8 +509,9 @@ void ast_tcptls_server_start(struct ast_tcptls_session_args *desc)
pthread_join(desc->master, NULL);
}
if (desc->accept_fd != -1)
if (desc->accept_fd != -1) {
close(desc->accept_fd);
}
/* If there's no new server, stop here */
if (ast_sockaddr_isnull(&desc->local_address)) {
@ -544,8 +566,9 @@ void ast_tcptls_server_stop(struct ast_tcptls_session_args *desc)
pthread_join(desc->master, NULL);
desc->master = AST_PTHREADT_NULL;
}
if (desc->accept_fd != -1)
if (desc->accept_fd != -1) {
close(desc->accept_fd);
}
desc->accept_fd = -1;
ast_debug(2, "Stopped server :: %s\n", desc->name);
}

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