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Merge pull request #8858 from waleed-elmelegy-arm/add_alpn_to_session

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Add ALPN information in session tickets
This commit is contained in:
Ronald Cron 2024-03-15 09:50:24 +00:00 committed by GitHub
commit 6bee910dbd
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GPG Key ID: B5690EEEBB952194
6 changed files with 155 additions and 8 deletions
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5
include/mbedtls/ssl.h
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@ -1304,6 +1304,11 @@ struct mbedtls_ssl_session {
char *MBEDTLS_PRIVATE(hostname); /*!< host name binded with tickets */
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION && MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C)
char *ticket_alpn; /*!< ALPN negotiated in the session
during which the ticket was generated. */
#endif
#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_CLI_C)
/*! Time in milliseconds when the last ticket was received. */
mbedtls_ms_time_t MBEDTLS_PRIVATE(ticket_reception_time);

7
library/ssl_misc.h
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@ -2852,6 +2852,13 @@ int mbedtls_ssl_session_set_hostname(mbedtls_ssl_session *session,
const char *hostname);
#endif
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_EARLY_DATA) && \
defined(MBEDTLS_SSL_ALPN)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_session_set_ticket_alpn(mbedtls_ssl_session *session,
const char *alpn);
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_SESSION_TICKETS)
#define MBEDTLS_SSL_TLS1_3_MAX_ALLOWED_TICKET_LIFETIME (604800)

117
library/ssl_tls.c
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@ -3750,9 +3750,16 @@ static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
size_t hostname_len = (session->hostname == NULL) ?
0 : strlen(session->hostname) + 1;
#endif
#if defined(MBEDTLS_SSL_SRV_C) && \
defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
const size_t alpn_len = (session->ticket_alpn == NULL) ?
0 : strlen(session->ticket_alpn) + 1;
#endif
size_t needed = 4 /* ticket_age_add */
+ 1 /* ticket_flags */
+ 1; /* resumption_key length */
*olen = 0;
if (session->resumption_key_len > MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN) {
@ -3771,6 +3778,15 @@ static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
needed += 8; /* ticket_creation_time or ticket_reception_time */
#endif
#if defined(MBEDTLS_SSL_SRV_C)
if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
needed += 2 /* alpn_len */
+ alpn_len; /* alpn */
#endif
}
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_CLI_C)
if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
@ -3813,13 +3829,26 @@ static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
p += 2;
#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
#if defined(MBEDTLS_SSL_SRV_C)
if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
#if defined(MBEDTLS_HAVE_TIME)
MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_creation_time, p, 0);
p += 8;
}
#endif /* MBEDTLS_HAVE_TIME */
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
MBEDTLS_PUT_UINT16_BE(alpn_len, p, 0);
p += 2;
if (alpn_len > 0) {
/* save chosen alpn */
memcpy(p, session->ticket_alpn, alpn_len);
p += alpn_len;
}
#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_ALPN */
}
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_CLI_C)
if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
@ -3894,16 +3923,41 @@ static int ssl_tls13_session_load(mbedtls_ssl_session *session,
p += 2;
#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
#if defined(MBEDTLS_SSL_SRV_C)
if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
#if defined(MBEDTLS_HAVE_TIME)
if (end - p < 8) {
return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
}
session->ticket_creation_time = MBEDTLS_GET_UINT64_BE(p, 0);
p += 8;
}
#endif /* MBEDTLS_HAVE_TIME */
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
size_t alpn_len;
if (end - p < 2) {
return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
}
alpn_len = MBEDTLS_GET_UINT16_BE(p, 0);
p += 2;
if (end - p < (long int) alpn_len) {
return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
}
if (alpn_len > 0) {
int ret = mbedtls_ssl_session_set_ticket_alpn(session, (char *) p);
if (ret != 0) {
return ret;
}
p += alpn_len;
}
#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_ALPN */
}
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_CLI_C)
if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
@ -4060,6 +4114,13 @@ static int ssl_tls13_session_load(const mbedtls_ssl_session *session,
#define SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE 0
#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
#if defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C) && \
defined(MBEDTLS_SSL_EARLY_DATA)
#define SSL_SERIALIZED_SESSION_CONFIG_ALPN 1
#else
#define SSL_SERIALIZED_SESSION_CONFIG_ALPN 0
#endif /* MBEDTLS_SSL_ALPN */
#define SSL_SERIALIZED_SESSION_CONFIG_TIME_BIT 0
#define SSL_SERIALIZED_SESSION_CONFIG_CRT_BIT 1
#define SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT 2
@ -4070,6 +4131,7 @@ static int ssl_tls13_session_load(const mbedtls_ssl_session *session,
#define SSL_SERIALIZED_SESSION_CONFIG_SNI_BIT 7
#define SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA_BIT 8
#define SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE_BIT 9
#define SSL_SERIALIZED_SESSION_CONFIG_ALPN_BIT 10
#define SSL_SERIALIZED_SESSION_CONFIG_BITFLAG \
((uint16_t) ( \
@ -4086,7 +4148,9 @@ static int ssl_tls13_session_load(const mbedtls_ssl_session *session,
(SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA << \
SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA_BIT) | \
(SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE << \
SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE_BIT)))
SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE_BIT) | \
(SSL_SERIALIZED_SESSION_CONFIG_ALPN << \
SSL_SERIALIZED_SESSION_CONFIG_ALPN_BIT)))
static const unsigned char ssl_serialized_session_header[] = {
MBEDTLS_VERSION_MAJOR,
@ -4161,8 +4225,12 @@ static const unsigned char ssl_serialized_session_header[] = {
* #endif
* select ( endpoint ) {
* case client: ClientOnlyData;
* case server:
* #if defined(MBEDTLS_HAVE_TIME)
* case server: uint64 ticket_creation_time;
* uint64 ticket_creation_time;
* #endif
* #if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
* opaque ticket_alpn<0..256>;
* #endif
* };
* } serialized_session_tls13;
@ -4852,6 +4920,11 @@ void mbedtls_ssl_session_free(mbedtls_ssl_session *session)
mbedtls_free(session->ticket);
#endif
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN) && \
defined(MBEDTLS_SSL_SRV_C)
mbedtls_free(session->ticket_alpn);
#endif
mbedtls_platform_zeroize(session, sizeof(mbedtls_ssl_session));
}
@ -9798,4 +9871,36 @@ int mbedtls_ssl_session_set_hostname(mbedtls_ssl_session *session,
MBEDTLS_SSL_SERVER_NAME_INDICATION &&
MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_EARLY_DATA) && \
defined(MBEDTLS_SSL_ALPN)
int mbedtls_ssl_session_set_ticket_alpn(mbedtls_ssl_session *session,
const char *alpn)
{
size_t alpn_len = 0;
if (alpn != NULL) {
alpn_len = strlen(alpn);
if (alpn_len > MBEDTLS_SSL_MAX_ALPN_NAME_LEN) {
return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
}
}
if (session->ticket_alpn != NULL) {
mbedtls_zeroize_and_free(session->ticket_alpn,
strlen(session->ticket_alpn));
session->ticket_alpn = NULL;
}
if (alpn != NULL) {
session->ticket_alpn = mbedtls_calloc(alpn_len + 1, 1);
if (session->ticket_alpn == NULL) {
return MBEDTLS_ERR_SSL_ALLOC_FAILED;
}
memcpy(session->ticket_alpn, alpn, alpn_len);
}
return 0;
}
#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_ALPN */
#endif /* MBEDTLS_SSL_TLS_C */

18
library/ssl_tls13_server.c
View File

@ -467,7 +467,14 @@ static int ssl_tls13_session_copy_ticket(mbedtls_ssl_session *dst,
#if defined(MBEDTLS_SSL_EARLY_DATA)
dst->max_early_data_size = src->max_early_data_size;
#endif
#if defined(MBEDTLS_SSL_ALPN)
int ret = mbedtls_ssl_session_set_ticket_alpn(dst, src->ticket_alpn);
if (ret != 0) {
return ret;
}
#endif /* MBEDTLS_SSL_ALPN */
#endif /* MBEDTLS_SSL_EARLY_DATA*/
return 0;
}
@ -3137,6 +3144,15 @@ static int ssl_tls13_prepare_new_session_ticket(mbedtls_ssl_context *ssl,
MBEDTLS_SSL_PRINT_TICKET_FLAGS(4, session->ticket_flags);
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
if (session->ticket_alpn == NULL) {
ret = mbedtls_ssl_session_set_ticket_alpn(session, ssl->alpn_chosen);
if (ret != 0) {
return ret;
}
}
#endif
/* Generate ticket_age_add */
if ((ret = ssl->conf->f_rng(ssl->conf->p_rng,
(unsigned char *) &session->ticket_age_add,

8
tests/src/test_helpers/ssl_helpers.c
View File

@ -1793,7 +1793,13 @@ int mbedtls_test_ssl_tls13_populate_session(mbedtls_ssl_session *session,
#if defined(MBEDTLS_SSL_EARLY_DATA)
session->max_early_data_size = 0x87654321;
#endif
#if defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C)
int ret = mbedtls_ssl_session_set_ticket_alpn(session, "ALPNExample");
if (ret != 0) {
return -1;
}
#endif /* MBEDTLS_SSL_ALPN && MBEDTLS_SSL_SRV_C */
#endif /* MBEDTLS_SSL_EARLY_DATA */
#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {

8
tests/suites/test_suite_ssl.function
View File

@ -2104,6 +2104,14 @@ void ssl_serialize_session_save_load(int ticket_len, char *crt_file,
#if defined(MBEDTLS_SSL_EARLY_DATA)
TEST_ASSERT(
original.max_early_data_size == restored.max_early_data_size);
#if defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C)
if (endpoint_type == MBEDTLS_SSL_IS_SERVER) {
TEST_ASSERT(original.ticket_alpn != NULL);
TEST_ASSERT(restored.ticket_alpn != NULL);
TEST_MEMORY_COMPARE(original.ticket_alpn, strlen(original.ticket_alpn),
restored.ticket_alpn, strlen(restored.ticket_alpn));
}
#endif
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)