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_srvr.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_srvr.c')
-rw-r--r-- | app/openssl/ssl/d1_srvr.c | 217 |
1 files changed, 188 insertions, 29 deletions
diff --git a/app/openssl/ssl/d1_srvr.c b/app/openssl/ssl/d1_srvr.c index a6a4c87e..09f47627 100644 --- a/app/openssl/ssl/d1_srvr.c +++ b/app/openssl/ssl/d1_srvr.c @@ -151,6 +151,10 @@ int dtls1_accept(SSL *s) int ret= -1; int new_state,state,skip=0; int listen; +#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(); @@ -168,6 +172,13 @@ int dtls1_accept(SSL *s) if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); s->d1->listen = listen; +#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 if (s->cert == NULL) { @@ -175,6 +186,19 @@ int dtls1_accept(SSL *s) return(-1); } +#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; @@ -182,7 +206,7 @@ int dtls1_accept(SSL *s) switch (s->state) { case SSL_ST_RENEGOTIATE: - s->new_session=1; + s->renegotiate=1; /* s->state=SSL_ST_ACCEPT; */ case SSL_ST_BEFORE: @@ -227,8 +251,12 @@ int dtls1_accept(SSL *s) { /* Ok, we now need to push on a buffering BIO so that * the output is sent in a way that TCP likes :-) + * ...but not with SCTP :-) */ - if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; } +#ifndef OPENSSL_NO_SCTP + if (!BIO_dgram_is_sctp(SSL_get_wbio(s))) +#endif + if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; } ssl3_init_finished_mac(s); s->state=SSL3_ST_SR_CLNT_HELLO_A; @@ -248,10 +276,11 @@ int dtls1_accept(SSL *s) case SSL3_ST_SW_HELLO_REQ_B: s->shutdown=0; + dtls1_clear_record_buffer(s); dtls1_start_timer(s); ret=dtls1_send_hello_request(s); if (ret <= 0) goto end; - s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C; + s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A; s->state=SSL3_ST_SW_FLUSH; s->init_num=0; @@ -313,25 +342,75 @@ int dtls1_accept(SSL *s) ssl3_init_finished_mac(s); break; +#ifndef OPENSSL_NO_SCTP + case DTLS1_SCTP_ST_SR_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=SSL3_ST_SR_FINISHED_A; + break; + + case DTLS1_SCTP_ST_SW_WRITE_SOCK: + ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s)); + if (ret < 0) goto end; + + if (ret == 0) + { + if (s->d1->next_state != SSL_ST_OK) + { + 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_SW_SRVR_HELLO_A: case SSL3_ST_SW_SRVR_HELLO_B: - s->new_session = 2; + s->renegotiate = 2; dtls1_start_timer(s); ret=dtls1_send_server_hello(s); if (ret <= 0) goto end; -#ifndef OPENSSL_NO_TLSEXT 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 +#ifndef OPENSSL_NO_TLSEXT if (s->tlsext_ticket_expected) s->state=SSL3_ST_SW_SESSION_TICKET_A; else s->state=SSL3_ST_SW_CHANGE_A; - } #else - if (s->hit) - s->state=SSL3_ST_SW_CHANGE_A; + s->state=SSL3_ST_SW_CHANGE_A; #endif + } else s->state=SSL3_ST_SW_CERT_A; s->init_num=0; @@ -392,7 +471,7 @@ int dtls1_accept(SSL *s) /* PSK: send ServerKeyExchange if PSK identity * hint if provided */ #ifndef OPENSSL_NO_PSK - || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint) + || ((alg_k & SSL_kPSK) && s->session->psk_identity_hint) #endif || (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) || (alg_k & SSL_kEECDH) @@ -441,6 +520,13 @@ int dtls1_accept(SSL *s) skip=1; s->s3->tmp.cert_request=0; s->state=SSL3_ST_SW_SRVR_DONE_A; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s))) + { + s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A; + s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK; + } +#endif } else { @@ -450,9 +536,23 @@ int dtls1_accept(SSL *s) if (ret <= 0) goto end; #ifndef NETSCAPE_HANG_BUG s->state=SSL3_ST_SW_SRVR_DONE_A; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s))) + { + s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A; + s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK; + } +#endif #else s->state=SSL3_ST_SW_FLUSH; s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; +#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_SW_WRITE_SOCK; + } +#endif #endif s->init_num=0; } @@ -472,6 +572,13 @@ int dtls1_accept(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; } @@ -485,15 +592,16 @@ int dtls1_accept(SSL *s) ret = ssl3_check_client_hello(s); if (ret <= 0) goto end; - dtls1_stop_timer(s); if (ret == 2) + { + dtls1_stop_timer(s); s->state = SSL3_ST_SR_CLNT_HELLO_C; + } else { /* could be sent for a DH cert, even if we * have not asked for it :-) */ ret=ssl3_get_client_certificate(s); if (ret <= 0) goto end; - dtls1_stop_timer(s); s->init_num=0; s->state=SSL3_ST_SR_KEY_EXCH_A; } @@ -503,7 +611,21 @@ int dtls1_accept(SSL *s) case SSL3_ST_SR_KEY_EXCH_B: ret=ssl3_get_client_key_exchange(s); if (ret <= 0) goto end; - dtls1_stop_timer(s); +#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_SR_CERT_VRFY_A; s->init_num=0; @@ -540,9 +662,13 @@ int dtls1_accept(SSL *s) /* we should decide if we expected this one */ ret=ssl3_get_cert_verify(s); if (ret <= 0) goto end; - dtls1_stop_timer(s); - - s->state=SSL3_ST_SR_FINISHED_A; +#ifndef OPENSSL_NO_SCTP + if (BIO_dgram_is_sctp(SSL_get_wbio(s)) && + state == SSL_ST_RENEGOTIATE) + s->state=DTLS1_SCTP_ST_SR_READ_SOCK; + else +#endif + s->state=SSL3_ST_SR_FINISHED_A; s->init_num=0; break; @@ -594,6 +720,17 @@ int dtls1_accept(SSL *s) SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B); if (ret <= 0) 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 + s->state=SSL3_ST_SW_FINISHED_A; s->init_num=0; @@ -616,9 +753,27 @@ int dtls1_accept(SSL *s) if (ret <= 0) goto end; s->state=SSL3_ST_SW_FLUSH; if (s->hit) + { s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A; + +#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 + } else + { 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_SW_WRITE_SOCK; + } +#endif + } s->init_num=0; break; @@ -636,11 +791,9 @@ int dtls1_accept(SSL *s) s->init_num=0; - if (s->new_session == 2) /* skipped if we just sent a HelloRequest */ + if (s->renegotiate == 2) /* skipped if we just sent a HelloRequest */ { - /* actually not necessarily a 'new' session unless - * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */ - + s->renegotiate=0; s->new_session=0; ssl_update_cache(s,SSL_SESS_CACHE_SERVER); @@ -692,6 +845,14 @@ end: /* BIO_flush(s->wbio); */ s->in_handshake--; +#ifndef OPENSSL_NO_SCTP + /* Notify SCTP BIO socket to leave 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 + if (cb != NULL) cb(s,SSL_CB_ACCEPT_EXIT,ret); return(ret); @@ -764,15 +925,13 @@ int dtls1_send_server_hello(SSL *s) unsigned char *p,*d; int i; unsigned int sl; - unsigned long l,Time; + unsigned long l; if (s->state == SSL3_ST_SW_SRVR_HELLO_A) { buf=(unsigned char *)s->init_buf->data; p=s->s3->server_random; - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time)); + ssl_fill_hello_random(s, 1, p, SSL3_RANDOM_SIZE); /* Do the message type and length last */ d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); @@ -1129,7 +1288,7 @@ int dtls1_send_server_key_exchange(SSL *s) if (type & SSL_kPSK) { /* reserve size for record length and PSK identity hint*/ - n+=2+strlen(s->ctx->psk_identity_hint); + n+=2+strlen(s->session->psk_identity_hint); } else #endif /* !OPENSSL_NO_PSK */ @@ -1147,7 +1306,7 @@ int dtls1_send_server_key_exchange(SSL *s) if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) { - if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher)) + if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher, NULL)) == NULL) { al=SSL_AD_DECODE_ERROR; @@ -1205,9 +1364,9 @@ int dtls1_send_server_key_exchange(SSL *s) if (type & SSL_kPSK) { /* copy PSK identity hint */ - s2n(strlen(s->ctx->psk_identity_hint), p); - strncpy((char *)p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint)); - p+=strlen(s->ctx->psk_identity_hint); + s2n(strlen(s->session->psk_identity_hint), p); + strncpy((char *)p, s->session->psk_identity_hint, strlen(s->session->psk_identity_hint)); + p+=strlen(s->session->psk_identity_hint); } #endif @@ -1271,7 +1430,7 @@ int dtls1_send_server_key_exchange(SSL *s) EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL); EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); - EVP_SignUpdate(&md_ctx,&(d[4]),n); + EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); if (!EVP_SignFinal(&md_ctx,&(p[2]), (unsigned int *)&i,pkey)) { |