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authorDaniel Stenberg <daniel@haxx.se>2013-12-17 23:32:47 +0100
committerDaniel Stenberg <daniel@haxx.se>2013-12-20 17:12:42 +0100
commit11e8066ef9568bea4a07065a954104c0ab7efdea (patch)
tree47d3b42110a4bf23d7b58a0446200e24959619de /lib/vtls/sslgen.c
parent92b9ae5c5d59e8ad391351a908133aeae0d6314e (diff)
vtls: renamed sslgen.[ch] to vtls.[ch]
Diffstat (limited to 'lib/vtls/sslgen.c')
-rw-r--r--lib/vtls/sslgen.c689
1 files changed, 0 insertions, 689 deletions
diff --git a/lib/vtls/sslgen.c b/lib/vtls/sslgen.c
deleted file mode 100644
index 74b1a4f05..000000000
--- a/lib/vtls/sslgen.c
+++ /dev/null
@@ -1,689 +0,0 @@
-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-/* This file is for implementing all "generic" SSL functions that all libcurl
- internals should use. It is then responsible for calling the proper
- "backend" function.
-
- SSL-functions in libcurl should call functions in this source file, and not
- to any specific SSL-layer.
-
- Curl_ssl_ - prefix for generic ones
- Curl_ossl_ - prefix for OpenSSL ones
- Curl_gtls_ - prefix for GnuTLS ones
- Curl_nss_ - prefix for NSS ones
- Curl_qssl_ - prefix for QsoSSL ones
- Curl_gskit_ - prefix for GSKit ones
- Curl_polarssl_ - prefix for PolarSSL ones
- Curl_cyassl_ - prefix for CyaSSL ones
- Curl_schannel_ - prefix for Schannel SSPI ones
- Curl_darwinssl_ - prefix for SecureTransport (Darwin) ones
-
- Note that this source code uses curlssl_* functions, and they are all
- defines/macros #defined by the lib-specific header files.
-
- "SSL/TLS Strong Encryption: An Introduction"
- http://httpd.apache.org/docs-2.0/ssl/ssl_intro.html
-*/
-
-#include "curl_setup.h"
-
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
-#include "urldata.h"
-#define SSLGEN_C
-#include "sslgen.h" /* generic SSL protos etc */
-#include "openssl.h" /* OpenSSL versions */
-#include "gtls.h" /* GnuTLS versions */
-#include "nssg.h" /* NSS versions */
-#include "qssl.h" /* QSOSSL versions */
-#include "gskit.h" /* Global Secure ToolKit versions */
-#include "polarssl.h" /* PolarSSL versions */
-#include "axtls.h" /* axTLS versions */
-#include "cyassl.h" /* CyaSSL versions */
-#include "curl_schannel.h" /* Schannel SSPI version */
-#include "curl_darwinssl.h" /* SecureTransport (Darwin) version */
-#include "slist.h"
-#include "sendf.h"
-#include "rawstr.h"
-#include "url.h"
-#include "curl_memory.h"
-#include "progress.h"
-#include "share.h"
-#include "timeval.h"
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-/* The last #include file should be: */
-#include "memdebug.h"
-
-/* convenience macro to check if this handle is using a shared SSL session */
-#define SSLSESSION_SHARED(data) (data->share && \
- (data->share->specifier & \
- (1<<CURL_LOCK_DATA_SSL_SESSION)))
-
-static bool safe_strequal(char* str1, char* str2)
-{
- if(str1 && str2)
- /* both pointers point to something then compare them */
- return (0 != Curl_raw_equal(str1, str2)) ? TRUE : FALSE;
- else
- /* if both pointers are NULL then treat them as equal */
- return (!str1 && !str2) ? TRUE : FALSE;
-}
-
-bool
-Curl_ssl_config_matches(struct ssl_config_data* data,
- struct ssl_config_data* needle)
-{
- if((data->version == needle->version) &&
- (data->verifypeer == needle->verifypeer) &&
- (data->verifyhost == needle->verifyhost) &&
- safe_strequal(data->CApath, needle->CApath) &&
- safe_strequal(data->CAfile, needle->CAfile) &&
- safe_strequal(data->random_file, needle->random_file) &&
- safe_strequal(data->egdsocket, needle->egdsocket) &&
- safe_strequal(data->cipher_list, needle->cipher_list))
- return TRUE;
-
- return FALSE;
-}
-
-bool
-Curl_clone_ssl_config(struct ssl_config_data *source,
- struct ssl_config_data *dest)
-{
- dest->sessionid = source->sessionid;
- dest->verifyhost = source->verifyhost;
- dest->verifypeer = source->verifypeer;
- dest->version = source->version;
-
- if(source->CAfile) {
- dest->CAfile = strdup(source->CAfile);
- if(!dest->CAfile)
- return FALSE;
- }
- else
- dest->CAfile = NULL;
-
- if(source->CApath) {
- dest->CApath = strdup(source->CApath);
- if(!dest->CApath)
- return FALSE;
- }
- else
- dest->CApath = NULL;
-
- if(source->cipher_list) {
- dest->cipher_list = strdup(source->cipher_list);
- if(!dest->cipher_list)
- return FALSE;
- }
- else
- dest->cipher_list = NULL;
-
- if(source->egdsocket) {
- dest->egdsocket = strdup(source->egdsocket);
- if(!dest->egdsocket)
- return FALSE;
- }
- else
- dest->egdsocket = NULL;
-
- if(source->random_file) {
- dest->random_file = strdup(source->random_file);
- if(!dest->random_file)
- return FALSE;
- }
- else
- dest->random_file = NULL;
-
- return TRUE;
-}
-
-void Curl_free_ssl_config(struct ssl_config_data* sslc)
-{
- Curl_safefree(sslc->CAfile);
- Curl_safefree(sslc->CApath);
- Curl_safefree(sslc->cipher_list);
- Curl_safefree(sslc->egdsocket);
- Curl_safefree(sslc->random_file);
-}
-
-
-/*
- * Curl_rand() returns a random unsigned integer, 32bit.
- *
- * This non-SSL function is put here only because this file is the only one
- * with knowledge of what the underlying SSL libraries provide in terms of
- * randomizers.
- *
- * NOTE: 'data' may be passed in as NULL when coming from external API without
- * easy handle!
- *
- */
-
-unsigned int Curl_rand(struct SessionHandle *data)
-{
- unsigned int r;
- static unsigned int randseed;
- static bool seeded = FALSE;
-
-#ifndef have_curlssl_random
- (void)data;
-#else
- if(data) {
- Curl_ssl_random(data, (unsigned char *)&r, sizeof(r));
- return r;
- }
-#endif
-
-#ifdef RANDOM_FILE
- if(!seeded) {
- /* if there's a random file to read a seed from, use it */
- int fd = open(RANDOM_FILE, O_RDONLY);
- if(fd > -1) {
- /* read random data into the randseed variable */
- ssize_t nread = read(fd, &randseed, sizeof(randseed));
- if(nread == sizeof(randseed))
- seeded = TRUE;
- close(fd);
- }
- }
-#endif
-
- if(!seeded) {
- struct timeval now = curlx_tvnow();
- randseed += (unsigned int)now.tv_usec + (unsigned int)now.tv_sec;
- randseed = randseed * 1103515245 + 12345;
- randseed = randseed * 1103515245 + 12345;
- randseed = randseed * 1103515245 + 12345;
- seeded = TRUE;
- }
-
- /* Return an unsigned 32-bit pseudo-random number. */
- r = randseed = randseed * 1103515245 + 12345;
- return (r << 16) | ((r >> 16) & 0xFFFF);
-}
-
-#ifdef USE_SSL
-
-/* "global" init done? */
-static bool init_ssl=FALSE;
-
-/**
- * Global SSL init
- *
- * @retval 0 error initializing SSL
- * @retval 1 SSL initialized successfully
- */
-int Curl_ssl_init(void)
-{
- /* make sure this is only done once */
- if(init_ssl)
- return 1;
- init_ssl = TRUE; /* never again */
-
- return curlssl_init();
-}
-
-
-/* Global cleanup */
-void Curl_ssl_cleanup(void)
-{
- if(init_ssl) {
- /* only cleanup if we did a previous init */
- curlssl_cleanup();
- init_ssl = FALSE;
- }
-}
-
-CURLcode
-Curl_ssl_connect(struct connectdata *conn, int sockindex)
-{
- CURLcode res;
- /* mark this is being ssl-enabled from here on. */
- conn->ssl[sockindex].use = TRUE;
- conn->ssl[sockindex].state = ssl_connection_negotiating;
-
- res = curlssl_connect(conn, sockindex);
-
- if(!res)
- Curl_pgrsTime(conn->data, TIMER_APPCONNECT); /* SSL is connected */
-
- return res;
-}
-
-CURLcode
-Curl_ssl_connect_nonblocking(struct connectdata *conn, int sockindex,
- bool *done)
-{
- CURLcode res;
- /* mark this is being ssl requested from here on. */
- conn->ssl[sockindex].use = TRUE;
-#ifdef curlssl_connect_nonblocking
- res = curlssl_connect_nonblocking(conn, sockindex, done);
-#else
- *done = TRUE; /* fallback to BLOCKING */
- res = curlssl_connect(conn, sockindex);
-#endif /* non-blocking connect support */
- if(!res && *done)
- Curl_pgrsTime(conn->data, TIMER_APPCONNECT); /* SSL is connected */
- return res;
-}
-
-/*
- * Check if there's a session ID for the given connection in the cache, and if
- * there's one suitable, it is provided. Returns TRUE when no entry matched.
- */
-int Curl_ssl_getsessionid(struct connectdata *conn,
- void **ssl_sessionid,
- size_t *idsize) /* set 0 if unknown */
-{
- struct curl_ssl_session *check;
- struct SessionHandle *data = conn->data;
- size_t i;
- long *general_age;
- bool no_match = TRUE;
-
- *ssl_sessionid = NULL;
-
- if(!conn->ssl_config.sessionid)
- /* session ID re-use is disabled */
- return TRUE;
-
- /* Lock if shared */
- if(SSLSESSION_SHARED(data)) {
- Curl_share_lock(data, CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
- general_age = &data->share->sessionage;
- }
- else
- general_age = &data->state.sessionage;
-
- for(i = 0; i < data->set.ssl.max_ssl_sessions; i++) {
- check = &data->state.session[i];
- if(!check->sessionid)
- /* not session ID means blank entry */
- continue;
- if(Curl_raw_equal(conn->host.name, check->name) &&
- (conn->remote_port == check->remote_port) &&
- Curl_ssl_config_matches(&conn->ssl_config, &check->ssl_config)) {
- /* yes, we have a session ID! */
- (*general_age)++; /* increase general age */
- check->age = *general_age; /* set this as used in this age */
- *ssl_sessionid = check->sessionid;
- if(idsize)
- *idsize = check->idsize;
- no_match = FALSE;
- break;
- }
- }
-
- /* Unlock */
- if(SSLSESSION_SHARED(data))
- Curl_share_unlock(data, CURL_LOCK_DATA_SSL_SESSION);
-
- return no_match;
-}
-
-/*
- * Kill a single session ID entry in the cache.
- */
-void Curl_ssl_kill_session(struct curl_ssl_session *session)
-{
- if(session->sessionid) {
- /* defensive check */
-
- /* free the ID the SSL-layer specific way */
- curlssl_session_free(session->sessionid);
-
- session->sessionid = NULL;
- session->age = 0; /* fresh */
-
- Curl_free_ssl_config(&session->ssl_config);
-
- Curl_safefree(session->name);
- }
-}
-
-/*
- * Delete the given session ID from the cache.
- */
-void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid)
-{
- size_t i;
- struct SessionHandle *data=conn->data;
-
- if(SSLSESSION_SHARED(data))
- Curl_share_lock(data, CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
-
- for(i = 0; i < data->set.ssl.max_ssl_sessions; i++) {
- struct curl_ssl_session *check = &data->state.session[i];
-
- if(check->sessionid == ssl_sessionid) {
- Curl_ssl_kill_session(check);
- break;
- }
- }
-
- if(SSLSESSION_SHARED(data))
- Curl_share_unlock(data, CURL_LOCK_DATA_SSL_SESSION);
-}
-
-/*
- * Store session id in the session cache. The ID passed on to this function
- * must already have been extracted and allocated the proper way for the SSL
- * layer. Curl_XXXX_session_free() will be called to free/kill the session ID
- * later on.
- */
-CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
- void *ssl_sessionid,
- size_t idsize)
-{
- size_t i;
- struct SessionHandle *data=conn->data; /* the mother of all structs */
- struct curl_ssl_session *store = &data->state.session[0];
- long oldest_age=data->state.session[0].age; /* zero if unused */
- char *clone_host;
- long *general_age;
-
- /* Even though session ID re-use might be disabled, that only disables USING
- IT. We still store it here in case the re-using is again enabled for an
- upcoming transfer */
-
- clone_host = strdup(conn->host.name);
- if(!clone_host)
- return CURLE_OUT_OF_MEMORY; /* bail out */
-
- /* Now we should add the session ID and the host name to the cache, (remove
- the oldest if necessary) */
-
- /* If using shared SSL session, lock! */
- if(SSLSESSION_SHARED(data)) {
- Curl_share_lock(data, CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
- general_age = &data->share->sessionage;
- }
- else {
- general_age = &data->state.sessionage;
- }
-
- /* find an empty slot for us, or find the oldest */
- for(i = 1; (i < data->set.ssl.max_ssl_sessions) &&
- data->state.session[i].sessionid; i++) {
- if(data->state.session[i].age < oldest_age) {
- oldest_age = data->state.session[i].age;
- store = &data->state.session[i];
- }
- }
- if(i == data->set.ssl.max_ssl_sessions)
- /* cache is full, we must "kill" the oldest entry! */
- Curl_ssl_kill_session(store);
- else
- store = &data->state.session[i]; /* use this slot */
-
- /* now init the session struct wisely */
- store->sessionid = ssl_sessionid;
- store->idsize = idsize;
- store->age = *general_age; /* set current age */
- if(store->name)
- /* free it if there's one already present */
- free(store->name);
- store->name = clone_host; /* clone host name */
- store->remote_port = conn->remote_port; /* port number */
-
-
- /* Unlock */
- if(SSLSESSION_SHARED(data))
- Curl_share_unlock(data, CURL_LOCK_DATA_SSL_SESSION);
-
- if(!Curl_clone_ssl_config(&conn->ssl_config, &store->ssl_config)) {
- store->sessionid = NULL; /* let caller free sessionid */
- free(clone_host);
- return CURLE_OUT_OF_MEMORY;
- }
-
- return CURLE_OK;
-}
-
-
-void Curl_ssl_close_all(struct SessionHandle *data)
-{
- size_t i;
- /* kill the session ID cache if not shared */
- if(data->state.session && !SSLSESSION_SHARED(data)) {
- for(i = 0; i < data->set.ssl.max_ssl_sessions; i++)
- /* the single-killer function handles empty table slots */
- Curl_ssl_kill_session(&data->state.session[i]);
-
- /* free the cache data */
- Curl_safefree(data->state.session);
- }
-
- curlssl_close_all(data);
-}
-
-void Curl_ssl_close(struct connectdata *conn, int sockindex)
-{
- DEBUGASSERT((sockindex <= 1) && (sockindex >= -1));
- curlssl_close(conn, sockindex);
-}
-
-CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex)
-{
- if(curlssl_shutdown(conn, sockindex))
- return CURLE_SSL_SHUTDOWN_FAILED;
-
- conn->ssl[sockindex].use = FALSE; /* get back to ordinary socket usage */
- conn->ssl[sockindex].state = ssl_connection_none;
-
- conn->recv[sockindex] = Curl_recv_plain;
- conn->send[sockindex] = Curl_send_plain;
-
- return CURLE_OK;
-}
-
-/* Selects an SSL crypto engine
- */
-CURLcode Curl_ssl_set_engine(struct SessionHandle *data, const char *engine)
-{
- return curlssl_set_engine(data, engine);
-}
-
-/* Selects the default SSL crypto engine
- */
-CURLcode Curl_ssl_set_engine_default(struct SessionHandle *data)
-{
- return curlssl_set_engine_default(data);
-}
-
-/* Return list of OpenSSL crypto engine names. */
-struct curl_slist *Curl_ssl_engines_list(struct SessionHandle *data)
-{
- return curlssl_engines_list(data);
-}
-
-/*
- * This sets up a session ID cache to the specified size. Make sure this code
- * is agnostic to what underlying SSL technology we use.
- */
-CURLcode Curl_ssl_initsessions(struct SessionHandle *data, size_t amount)
-{
- struct curl_ssl_session *session;
-
- if(data->state.session)
- /* this is just a precaution to prevent multiple inits */
- return CURLE_OK;
-
- session = calloc(amount, sizeof(struct curl_ssl_session));
- if(!session)
- return CURLE_OUT_OF_MEMORY;
-
- /* store the info in the SSL section */
- data->set.ssl.max_ssl_sessions = amount;
- data->state.session = session;
- data->state.sessionage = 1; /* this is brand new */
- return CURLE_OK;
-}
-
-size_t Curl_ssl_version(char *buffer, size_t size)
-{
- return curlssl_version(buffer, size);
-}
-
-/*
- * This function tries to determine connection status.
- *
- * Return codes:
- * 1 means the connection is still in place
- * 0 means the connection has been closed
- * -1 means the connection status is unknown
- */
-int Curl_ssl_check_cxn(struct connectdata *conn)
-{
- return curlssl_check_cxn(conn);
-}
-
-bool Curl_ssl_data_pending(const struct connectdata *conn,
- int connindex)
-{
- return curlssl_data_pending(conn, connindex);
-}
-
-void Curl_ssl_free_certinfo(struct SessionHandle *data)
-{
- int i;
- struct curl_certinfo *ci = &data->info.certs;
- if(ci->num_of_certs) {
- /* free all individual lists used */
- for(i=0; i<ci->num_of_certs; i++) {
- curl_slist_free_all(ci->certinfo[i]);
- ci->certinfo[i] = NULL;
- }
- free(ci->certinfo); /* free the actual array too */
- ci->certinfo = NULL;
- ci->num_of_certs = 0;
- }
-}
-
-int Curl_ssl_init_certinfo(struct SessionHandle * data,
- int num)
-{
- struct curl_certinfo * ci = &data->info.certs;
- struct curl_slist * * table;
-
- /* Initialize the certificate information structures. Return 0 if OK, else 1.
- */
- Curl_ssl_free_certinfo(data);
- ci->num_of_certs = num;
- table = calloc((size_t) num, sizeof(struct curl_slist *));
- if(!table)
- return 1;
-
- ci->certinfo = table;
- return 0;
-}
-
-/*
- * 'value' is NOT a zero terminated string
- */
-CURLcode Curl_ssl_push_certinfo_len(struct SessionHandle *data,
- int certnum,
- const char *label,
- const char *value,
- size_t valuelen)
-{
- struct curl_certinfo * ci = &data->info.certs;
- char * output;
- struct curl_slist * nl;
- CURLcode res = CURLE_OK;
- size_t labellen = strlen(label);
- size_t outlen = labellen + 1 + valuelen + 1; /* label:value\0 */
-
- output = malloc(outlen);
- if(!output)
- return CURLE_OUT_OF_MEMORY;
-
- /* sprintf the label and colon */
- snprintf(output, outlen, "%s:", label);
-
- /* memcpy the value (it might not be zero terminated) */
- memcpy(&output[labellen+1], value, valuelen);
-
- /* zero terminate the output */
- output[labellen + 1 + valuelen] = 0;
-
- nl = Curl_slist_append_nodup(ci->certinfo[certnum], output);
- if(!nl) {
- free(output);
- curl_slist_free_all(ci->certinfo[certnum]);
- res = CURLE_OUT_OF_MEMORY;
- }
-
- ci->certinfo[certnum] = nl;
- return res;
-}
-
-/*
- * This is a convenience function for push_certinfo_len that takes a zero
- * terminated value.
- */
-CURLcode Curl_ssl_push_certinfo(struct SessionHandle *data,
- int certnum,
- const char *label,
- const char *value)
-{
- size_t valuelen = strlen(value);
-
- return Curl_ssl_push_certinfo_len(data, certnum, label, value, valuelen);
-}
-
-/* these functions are only provided by some SSL backends */
-
-#ifdef have_curlssl_random
-void Curl_ssl_random(struct SessionHandle *data,
- unsigned char *entropy,
- size_t length)
-{
- curlssl_random(data, entropy, length);
-}
-#endif
-
-#ifdef have_curlssl_md5sum
-void Curl_ssl_md5sum(unsigned char *tmp, /* input */
- size_t tmplen,
- unsigned char *md5sum, /* output */
- size_t md5len)
-{
- curlssl_md5sum(tmp, tmplen, md5sum, md5len);
-}
-#endif
-
-#endif /* USE_SSL */