diff options
author | Parménides GV <parmegv@sdf.org> | 2014-06-11 11:56:59 +0200 |
---|---|---|
committer | Parménides GV <parmegv@sdf.org> | 2014-06-11 19:50:54 +0200 |
commit | 3e121542d8b7ab5201c47bbd3ba5611a23c54759 (patch) | |
tree | a6035639e7baa88dd122d0d4e85791726606389a /app/openssl/ssl/d1_clnt.c | |
parent | ac69881af1b7bfcdd185989f3e434556b1d62fed (diff) |
Correctly connects to millipede.
Location keyword on android.cfg isn't supported, EIP corresponding code
has been commented out. I think we should support it in ics-openvpn, so
that we can show the location instead of the server name.
I've updated all opensssl, openvpn, etc. subprojects from rev 813 of
ics-openvpn, and jni too.
Diffstat (limited to 'app/openssl/ssl/d1_clnt.c')
-rw-r--r-- | app/openssl/ssl/d1_clnt.c | 229 |
1 files changed, 200 insertions, 29 deletions
diff --git a/app/openssl/ssl/d1_clnt.c b/app/openssl/ssl/d1_clnt.c index 57766717..5ee8f58e 100644 --- a/app/openssl/ssl/d1_clnt.c +++ b/app/openssl/ssl/d1_clnt.c @@ -150,7 +150,11 @@ int dtls1_connect(SSL *s) unsigned long Time=(unsigned long)time(NULL); void (*cb)(const SSL *ssl,int type,int val)=NULL; int ret= -1; - int new_state,state,skip=0;; + int new_state,state,skip=0; +#ifndef OPENSSL_NO_SCTP + unsigned char sctpauthkey[64]; + char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)]; +#endif RAND_add(&Time,sizeof(Time),0); ERR_clear_error(); @@ -164,6 +168,27 @@ int dtls1_connect(SSL *s) s->in_handshake++; if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); +#ifndef OPENSSL_NO_SCTP + /* Notify SCTP BIO socket to enter handshake + * mode and prevent stream identifier other + * than 0. Will be ignored if no SCTP is used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL); +#endif + +#ifndef OPENSSL_NO_HEARTBEATS + /* If we're awaiting a HeartbeatResponse, pretend we + * already got and don't await it anymore, because + * Heartbeats don't make sense during handshakes anyway. + */ + if (s->tlsext_hb_pending) + { + dtls1_stop_timer(s); + s->tlsext_hb_pending = 0; + s->tlsext_hb_seq++; + } +#endif + for (;;) { state=s->state; @@ -171,7 +196,7 @@ int dtls1_connect(SSL *s) switch(s->state) { case SSL_ST_RENEGOTIATE: - s->new_session=1; + s->renegotiate=1; s->state=SSL_ST_CONNECT; s->ctx->stats.sess_connect_renegotiate++; /* break */ @@ -226,6 +251,42 @@ int dtls1_connect(SSL *s) s->hit = 0; break; +#ifndef OPENSSL_NO_SCTP + case DTLS1_SCTP_ST_CR_READ_SOCK: + + if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) + { + s->s3->in_read_app_data=2; + s->rwstate=SSL_READING; + BIO_clear_retry_flags(SSL_get_rbio(s)); + BIO_set_retry_read(SSL_get_rbio(s)); + ret = -1; + goto end; + } + + s->state=s->s3->tmp.next_state; + break; + + case DTLS1_SCTP_ST_CW_WRITE_SOCK: + /* read app data until dry event */ + + ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s)); + if (ret < 0) goto end; + + if (ret == 0) + { + s->s3->in_read_app_data=2; + s->rwstate=SSL_READING; + BIO_clear_retry_flags(SSL_get_rbio(s)); + BIO_set_retry_read(SSL_get_rbio(s)); + ret = -1; + goto end; + } + + s->state=s->d1->next_state; + break; +#endif + case SSL3_ST_CW_CLNT_HELLO_A: case SSL3_ST_CW_CLNT_HELLO_B: @@ -248,9 +309,17 @@ int dtls1_connect(SSL *s) s->init_num=0; - /* turn on buffering for the next lot of output */ - if (s->bbio != s->wbio) - s->wbio=BIO_push(s->bbio,s->wbio); +#ifndef OPENSSL_NO_SCTP + /* Disable buffering for SCTP */ + if (!BIO_dgram_is_sctp(SSL_get_wbio(s))) + { +#endif + /* turn on buffering for the next lot of output */ + if (s->bbio != s->wbio) + s->wbio=BIO_push(s->bbio,s->wbio); +#ifndef OPENSSL_NO_SCTP + } +#endif break; @@ -260,9 +329,25 @@ int dtls1_connect(SSL *s) if (ret <= 0) goto end; else { - dtls1_stop_timer(s); if (s->hit) + { +#ifndef OPENSSL_NO_SCTP + /* Add new shared key for SCTP-Auth, + * will be ignored if no SCTP used. + */ + snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL), + DTLS1_SCTP_AUTH_LABEL); + + SSL_export_keying_material(s, sctpauthkey, + sizeof(sctpauthkey), labelbuffer, + sizeof(labelbuffer), NULL, 0, 0); + + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY, + sizeof(sctpauthkey), sctpauthkey); +#endif + s->state=SSL3_ST_CR_FINISHED_A; + } else s->state=DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A; } @@ -354,12 +439,20 @@ int dtls1_connect(SSL *s) case SSL3_ST_CR_SRVR_DONE_B: ret=ssl3_get_server_done(s); if (ret <= 0) goto end; + dtls1_stop_timer(s); if (s->s3->tmp.cert_req) - s->state=SSL3_ST_CW_CERT_A; + s->s3->tmp.next_state=SSL3_ST_CW_CERT_A; else - s->state=SSL3_ST_CW_KEY_EXCH_A; + s->s3->tmp.next_state=SSL3_ST_CW_KEY_EXCH_A; s->init_num=0; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s)) && + state == SSL_ST_RENEGOTIATE) + s->state=DTLS1_SCTP_ST_CR_READ_SOCK; + else +#endif + s->state=s->s3->tmp.next_state; break; case SSL3_ST_CW_CERT_A: @@ -378,6 +471,22 @@ int dtls1_connect(SSL *s) dtls1_start_timer(s); ret=dtls1_send_client_key_exchange(s); if (ret <= 0) goto end; + +#ifndef OPENSSL_NO_SCTP + /* Add new shared key for SCTP-Auth, + * will be ignored if no SCTP used. + */ + snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL), + DTLS1_SCTP_AUTH_LABEL); + + SSL_export_keying_material(s, sctpauthkey, + sizeof(sctpauthkey), labelbuffer, + sizeof(labelbuffer), NULL, 0, 0); + + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY, + sizeof(sctpauthkey), sctpauthkey); +#endif + /* EAY EAY EAY need to check for DH fix cert * sent back */ /* For TLS, cert_req is set to 2, so a cert chain @@ -388,7 +497,15 @@ int dtls1_connect(SSL *s) } else { - s->state=SSL3_ST_CW_CHANGE_A; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s))) + { + s->d1->next_state=SSL3_ST_CW_CHANGE_A; + s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK; + } + else +#endif + s->state=SSL3_ST_CW_CHANGE_A; s->s3->change_cipher_spec=0; } @@ -400,7 +517,15 @@ int dtls1_connect(SSL *s) dtls1_start_timer(s); ret=dtls1_send_client_verify(s); if (ret <= 0) goto end; - s->state=SSL3_ST_CW_CHANGE_A; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s))) + { + s->d1->next_state=SSL3_ST_CW_CHANGE_A; + s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK; + } + else +#endif + s->state=SSL3_ST_CW_CHANGE_A; s->init_num=0; s->s3->change_cipher_spec=0; break; @@ -412,6 +537,7 @@ int dtls1_connect(SSL *s) ret=dtls1_send_change_cipher_spec(s, SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); if (ret <= 0) goto end; + s->state=SSL3_ST_CW_FINISHED_A; s->init_num=0; @@ -438,6 +564,16 @@ int dtls1_connect(SSL *s) goto end; } +#ifndef OPENSSL_NO_SCTP + if (s->hit) + { + /* Change to new shared key of SCTP-Auth, + * will be ignored if no SCTP used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); + } +#endif + dtls1_reset_seq_numbers(s, SSL3_CC_WRITE); break; @@ -457,15 +593,36 @@ int dtls1_connect(SSL *s) if (s->hit) { s->s3->tmp.next_state=SSL_ST_OK; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s))) + { + s->d1->next_state = s->s3->tmp.next_state; + s->s3->tmp.next_state=DTLS1_SCTP_ST_CW_WRITE_SOCK; + } +#endif if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) { s->state=SSL_ST_OK; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s))) + { + s->d1->next_state = SSL_ST_OK; + s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK; + } +#endif s->s3->flags|=SSL3_FLAGS_POP_BUFFER; s->s3->delay_buf_pop_ret=0; } } else { +#ifndef OPENSSL_NO_SCTP + /* Change to new shared key of SCTP-Auth, + * will be ignored if no SCTP used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); +#endif + #ifndef OPENSSL_NO_TLSEXT /* Allow NewSessionTicket if ticket expected */ if (s->tlsext_ticket_expected) @@ -508,6 +665,16 @@ int dtls1_connect(SSL *s) s->state=SSL3_ST_CW_CHANGE_A; else s->state=SSL_ST_OK; + +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s)) && + state == SSL_ST_RENEGOTIATE) + { + s->d1->next_state=s->state; + s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK; + } +#endif + s->init_num=0; break; @@ -515,6 +682,13 @@ int dtls1_connect(SSL *s) s->rwstate=SSL_WRITING; if (BIO_flush(s->wbio) <= 0) { + /* If the write error was fatal, stop trying */ + if (!BIO_should_retry(s->wbio)) + { + s->rwstate=SSL_NOTHING; + s->state=s->s3->tmp.next_state; + } + ret= -1; goto end; } @@ -541,6 +715,7 @@ int dtls1_connect(SSL *s) /* else do it later in ssl3_write */ s->init_num=0; + s->renegotiate=0; s->new_session=0; ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); @@ -587,6 +762,15 @@ int dtls1_connect(SSL *s) } end: s->in_handshake--; + +#ifndef OPENSSL_NO_SCTP + /* Notify SCTP BIO socket to leave handshake + * mode and allow stream identifier other + * than 0. Will be ignored if no SCTP is used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL); +#endif + if (buf != NULL) BUF_MEM_free(buf); if (cb != NULL) @@ -599,7 +783,7 @@ int dtls1_client_hello(SSL *s) unsigned char *buf; unsigned char *p,*d; unsigned int i,j; - unsigned long Time,l; + unsigned long l; SSL_COMP *comp; buf=(unsigned char *)s->init_buf->data; @@ -630,13 +814,11 @@ int dtls1_client_hello(SSL *s) /* if client_random is initialized, reuse it, we are * required to use same upon reply to HelloVerify */ - for (i=0;p[i]=='\0' && i<sizeof(s->s3->client_random);i++) ; + for (i=0;p[i]=='\0' && i<sizeof(s->s3->client_random);i++) + ; if (i==sizeof(s->s3->client_random)) - { - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - RAND_pseudo_bytes(p,sizeof(s->s3->client_random)-4); - } + ssl_fill_hello_random(s, 0, p, + sizeof(s->s3->client_random)); /* Do the message type and length last */ d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); @@ -1258,7 +1440,7 @@ int dtls1_send_client_key_exchange(SSL *s) goto err; } - psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint, + psk_len = s->psk_client_callback(s, s->session->psk_identity_hint, identity, PSK_MAX_IDENTITY_LEN, psk_or_pre_ms, sizeof(psk_or_pre_ms)); if (psk_len > PSK_MAX_PSK_LEN) @@ -1283,17 +1465,6 @@ int dtls1_send_client_key_exchange(SSL *s) t+=psk_len; s2n(psk_len, t); - if (s->session->psk_identity_hint != NULL) - OPENSSL_free(s->session->psk_identity_hint); - s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint); - if (s->ctx->psk_identity_hint != NULL && - s->session->psk_identity_hint == NULL) - { - SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE, - ERR_R_MALLOC_FAILURE); - goto psk_err; - } - if (s->session->psk_identity != NULL) OPENSSL_free(s->session->psk_identity); s->session->psk_identity = BUF_strdup(identity); |