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Backport c1fc044c to release/3.5

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This commit is contained in:
Aaron Jones 2016-08-31 14:13:45 +00:00
parent 07b6e728b5
commit c9c2d6ea12
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GPG key ID: EC6F86EE9CD840B5
2 changed files with 60 additions and 3 deletions
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59
libratbox/src/mbedtls.c
View file

@ -45,6 +45,8 @@
#include "mbedtls_embedded_data.h"
#define RB_MAX_CIPHERSUITES 512
typedef struct
{
mbedtls_x509_crt crt;
@ -52,6 +54,7 @@ typedef struct
mbedtls_dhm_context dhp;
mbedtls_ssl_config server_cfg;
mbedtls_ssl_config client_cfg;
int suites[RB_MAX_CIPHERSUITES + 1];
size_t refcount;
} rb_mbedtls_cfg_context;
@ -132,6 +135,8 @@ static rb_mbedtls_cfg_context *rb_mbedtls_cfg_new(void)
mbedtls_ssl_config_init(&cfg->server_cfg);
mbedtls_ssl_config_init(&cfg->client_cfg);
(void) memset(cfg->suites, 0x00, sizeof cfg->suites);
cfg->refcount = 1;
if((ret = mbedtls_ssl_config_defaults(&cfg->server_cfg,
@ -505,7 +510,59 @@ rb_setup_ssl_server(const char *certfile, const char *keyfile, const char *dhfil
return 0;
}
/* XXX support cipher lists when added to mbedtls */
if(cipher_list != NULL)
{
// The cipher_list is (const char *) -- we should not modify it
char *const cipher_list_dup = strdup(cipher_list);
if(cipher_list_dup == NULL)
{
rb_lib_log("rb_setup_ssl_server: strdup: %s", strerror(errno));
rb_lib_log("rb_setup_ssl_server: will not configure ciphersuites!");
}
else
{
size_t suites_count = 0;
char *cipher_str = cipher_list_dup;
while(*cipher_str != '\0' && suites_count < RB_MAX_CIPHERSUITES)
{
// Arbitrary, but the same separator as OpenSSL uses
char *const cipher_idx = strchr(cipher_str, ':');
// This could legitimately be NULL (last ciphersuite in the list)
if(cipher_idx != NULL)
*cipher_idx = '\0';
size_t cipher_len = strlen(cipher_str);
int cipher_idn = 0;
// All MbedTLS ciphersuite names begin with these 4 characters
if(cipher_len > 4 && strncmp(cipher_str, "TLS-", 4) == 0)
cipher_idn = mbedtls_ssl_get_ciphersuite_id(cipher_str);
// Prevent the same ciphersuite being added multiple times
for(size_t x = 0; cipher_idn != 0 && newcfg->suites[x] != 0; x++)
if(newcfg->suites[x] == cipher_idn)
cipher_idn = 0;
// Add the suite to the list
if(cipher_idn != 0)
newcfg->suites[suites_count++] = cipher_idn;
// Advance the string to the next entry -- this could end the loop
cipher_str += (cipher_len + 1);
}
if(suites_count > 0)
{
mbedtls_ssl_conf_ciphersuites(&newcfg->server_cfg, newcfg->suites);
mbedtls_ssl_conf_ciphersuites(&newcfg->client_cfg, newcfg->suites);
}
free(cipher_list_dup);
}
}
rb_mbedtls_cfg_decref(rb_mbedtls_cfg);
rb_mbedtls_cfg = newcfg;

4
src/s_serv.c
View file

@ -800,7 +800,7 @@ server_estab(struct Client *client_p)
EmptyString(server_p->spasswd) ? "*" : server_p->spasswd, TS_CURRENT, me.id);
/* pass info to new server */
send_capabilities(client_p, default_server_capabs
send_capabilities(client_p, default_server_capabs | CAP_MASK
| (ServerConfCompressed(server_p) ? CAP_ZIP_SUPPORTED : 0)
| (ServerConfTb(server_p) ? CAP_TB : 0));
@ -1357,7 +1357,7 @@ serv_connect_callback(rb_fde_t *F, int status, void *data)
EmptyString(server_p->spasswd) ? "*" : server_p->spasswd, TS_CURRENT, me.id);
/* pass my info to the new server */
send_capabilities(client_p, default_server_capabs
send_capabilities(client_p, default_server_capabs | CAP_MASK
| (ServerConfCompressed(server_p) ? CAP_ZIP_SUPPORTED : 0)
| (ServerConfTb(server_p) ? CAP_TB : 0));