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Unified Diff: patches/npn.patch

Issue 9254031: Upgrade chrome's OpenSSL to same version Android ships with. (Closed) Base URL: http://src.chromium.org/svn/trunk/deps/third_party/openssl/
Patch Set: '' Created 8 years, 11 months ago
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Index: patches/npn.patch
===================================================================
--- patches/npn.patch (revision 0)
+++ patches/npn.patch (revision 0)
@@ -0,0 +1,1293 @@
+--- openssl-1.0.0b.orig/apps/apps.c 2010-11-11 14:42:19.000000000 +0000
++++ openssl-1.0.0b/apps/apps.c 2010-11-29 19:56:04.902465346 +0000
+@@ -3012,3 +3012,46 @@ int raw_write_stdout(const void *buf,int
+ int raw_write_stdout(const void *buf,int siz)
+ { return write(fileno(stdout),buf,siz); }
+ #endif
++
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++/* next_protos_parse parses a comma separated list of strings into a string
++ * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
++ * outlen: (output) set to the length of the resulting buffer on success.
++ * in: a NUL termianted string like "abc,def,ghi"
++ *
++ * returns: a malloced buffer or NULL on failure.
++ */
++unsigned char *next_protos_parse(unsigned short *outlen, const char *in)
++ {
++ size_t len;
++ unsigned char *out;
++ size_t i, start = 0;
++
++ len = strlen(in);
++ if (len >= 65535)
++ return NULL;
++
++ out = OPENSSL_malloc(strlen(in) + 1);
++ if (!out)
++ return NULL;
++
++ for (i = 0; i <= len; ++i)
++ {
++ if (i == len || in[i] == ',')
++ {
++ if (i - start > 255)
++ {
++ OPENSSL_free(out);
++ return NULL;
++ }
++ out[start] = i - start;
++ start = i + 1;
++ }
++ else
++ out[i+1] = in[i];
++ }
++
++ *outlen = len + 1;
++ return out;
++ }
++#endif /* !OPENSSL_NO_TLSEXT && !OPENSSL_NO_NEXTPROTONEG */
+--- openssl-1.0.0b.orig/apps/apps.h 2009-10-31 13:34:19.000000000 +0000
++++ openssl-1.0.0b/apps/apps.h 2010-11-29 19:56:04.902465346 +0000
+@@ -358,3 +358,7 @@ int raw_write_stdout(const void *,int);
+ #define TM_STOP 1
+ double app_tminterval (int stop,int usertime);
+ #endif
++
++#ifndef OPENSSL_NO_NEXTPROTONEG
++unsigned char *next_protos_parse(unsigned short *outlen, const char *in);
++#endif
+--- openssl-1.0.0b.orig/apps/s_client.c 2010-11-29 19:56:04.832465351 +0000
++++ openssl-1.0.0b/apps/s_client.c 2010-11-29 19:56:04.902465346 +0000
+@@ -342,6 +342,9 @@ static void sc_usage(void)
+ BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n");
+ BIO_printf(bio_err," -status - request certificate status from server\n");
+ BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n");
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
++# endif
+ BIO_printf(bio_err," -cutthrough - enable 1-RTT full-handshake for strong ciphers\n");
+ #endif
+ BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
+@@ -367,6 +370,40 @@ static int MS_CALLBACK ssl_servername_cb
+
+ return SSL_TLSEXT_ERR_OK;
+ }
++
++# ifndef OPENSSL_NO_NEXTPROTONEG
++/* This the context that we pass to next_proto_cb */
++typedef struct tlsextnextprotoctx_st {
++ unsigned char *data;
++ unsigned short len;
++ int status;
++} tlsextnextprotoctx;
++
++static tlsextnextprotoctx next_proto;
++
++static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
++ {
++ tlsextnextprotoctx *ctx = arg;
++
++ if (!c_quiet)
++ {
++ /* We can assume that |in| is syntactically valid. */
++ unsigned i;
++ BIO_printf(bio_c_out, "Protocols advertised by server: ");
++ for (i = 0; i < inlen; )
++ {
++ if (i)
++ BIO_write(bio_c_out, ", ", 2);
++ BIO_write(bio_c_out, &in[i + 1], in[i]);
++ i += in[i] + 1;
++ }
++ BIO_write(bio_c_out, "\n", 1);
++ }
++
++ ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
++ return SSL_TLSEXT_ERR_OK;
++ }
++# endif /* ndef OPENSSL_NO_NEXTPROTONEG */
+ #endif
+
+ enum
+@@ -431,6 +468,9 @@ int MAIN(int argc, char **argv)
+ char *servername = NULL;
+ tlsextctx tlsextcbp =
+ {NULL,0};
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ const char *next_proto_neg_in = NULL;
++# endif
+ #endif
+ char *sess_in = NULL;
+ char *sess_out = NULL;
+@@ -658,6 +698,13 @@ int MAIN(int argc, char **argv)
+ #ifndef OPENSSL_NO_TLSEXT
+ else if (strcmp(*argv,"-no_ticket") == 0)
+ { off|=SSL_OP_NO_TICKET; }
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ else if (strcmp(*argv,"-nextprotoneg") == 0)
++ {
++ if (--argc < 1) goto bad;
++ next_proto_neg_in = *(++argv);
++ }
++# endif
+ #endif
+ else if (strcmp(*argv,"-cutthrough") == 0)
+ cutthrough=1;
+@@ -766,6 +813,21 @@ bad:
+ OpenSSL_add_ssl_algorithms();
+ SSL_load_error_strings();
+
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ next_proto.status = -1;
++ if (next_proto_neg_in)
++ {
++ next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
++ if (next_proto.data == NULL)
++ {
++ BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
++ goto end;
++ }
++ }
++ else
++ next_proto.data = NULL;
++#endif
++
+ #ifndef OPENSSL_NO_ENGINE
+ e = setup_engine(bio_err, engine_id, 1);
+ if (ssl_client_engine_id)
+@@ -896,6 +958,11 @@ bad:
+ SSL_CTX_set_mode(ctx, ssl_mode);
+ }
+
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ if (next_proto.data)
++ SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
++#endif
++
+ if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
+ if (cipher != NULL)
+ if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
+@@ -1755,6 +1822,18 @@ static void print_stuff(BIO *bio, SSL *s
+ BIO_printf(bio,"Expansion: %s\n",
+ expansion ? SSL_COMP_get_name(expansion) : "NONE");
+ #endif
++
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ if (next_proto.status != -1) {
++ const unsigned char *proto;
++ unsigned int proto_len;
++ SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
++ BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
++ BIO_write(bio, proto, proto_len);
++ BIO_write(bio, "\n", 1);
++ }
++#endif
++
+ SSL_SESSION_print(bio,SSL_get_session(s));
+ BIO_printf(bio,"---\n");
+ if (peer != NULL)
+--- openssl-1.0.0b.orig/apps/s_server.c 2010-06-15 17:25:02.000000000 +0000
++++ openssl-1.0.0b/apps/s_server.c 2010-11-29 19:56:04.902465346 +0000
+@@ -492,6 +492,9 @@ static void sv_usage(void)
+ BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n");
+ BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n");
+ BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
++# endif
+ #endif
+ }
+
+@@ -826,6 +829,24 @@ BIO_printf(err, "cert_status: received %
+ ret = SSL_TLSEXT_ERR_ALERT_FATAL;
+ goto done;
+ }
++
++# ifndef OPENSSL_NO_NEXTPROTONEG
++/* This is the context that we pass to next_proto_cb */
++typedef struct tlsextnextprotoctx_st {
++ unsigned char *data;
++ unsigned int len;
++} tlsextnextprotoctx;
++
++static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
++ {
++ tlsextnextprotoctx *next_proto = arg;
++
++ *data = next_proto->data;
++ *len = next_proto->len;
++
++ return SSL_TLSEXT_ERR_OK;
++ }
++# endif /* ndef OPENSSL_NO_NPN */
+ #endif
+
+ int MAIN(int, char **);
+@@ -867,6 +888,10 @@ int MAIN(int argc, char *argv[])
+ #endif
+ #ifndef OPENSSL_NO_TLSEXT
+ tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ const char *next_proto_neg_in = NULL;
++ tlsextnextprotoctx next_proto;
++# endif
+ #endif
+ #ifndef OPENSSL_NO_PSK
+ /* by default do not send a PSK identity hint */
+@@ -1191,7 +1216,13 @@ int MAIN(int argc, char *argv[])
+ if (--argc < 1) goto bad;
+ s_key_file2= *(++argv);
+ }
+-
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ else if (strcmp(*argv,"-nextprotoneg") == 0)
++ {
++ if (--argc < 1) goto bad;
++ next_proto_neg_in = *(++argv);
++ }
++# endif
+ #endif
+ #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
+ else if (strcmp(*argv,"-jpake") == 0)
+@@ -1476,6 +1507,11 @@ bad:
+ if (vpm)
+ SSL_CTX_set1_param(ctx2, vpm);
+ }
++
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ if (next_proto.data)
++ SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
++# endif
+ #endif
+
+ #ifndef OPENSSL_NO_DH
+@@ -1617,6 +1653,21 @@ bad:
+ goto end;
+ }
+ }
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ if (next_proto_neg_in)
++ {
++ unsigned short len;
++ next_proto.data = next_protos_parse(&len,
++ next_proto_neg_in);
++ if (next_proto.data == NULL)
++ goto end;
++ next_proto.len = len;
++ }
++ else
++ {
++ next_proto.data = NULL;
++ }
++# endif
+ #endif
+ RSA_free(rsa);
+ BIO_printf(bio_s_out,"\n");
+@@ -2159,6 +2210,10 @@ static int init_ssl_connection(SSL *con)
+ X509 *peer;
+ long verify_error;
+ MS_STATIC char buf[BUFSIZ];
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ const unsigned char *next_proto_neg;
++ unsigned next_proto_neg_len;
++#endif
+
+ if ((i=SSL_accept(con)) <= 0)
+ {
+@@ -2198,6 +2253,15 @@ static int init_ssl_connection(SSL *con)
+ BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
+ str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
+ BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
++ if (next_proto_neg)
++ {
++ BIO_printf(bio_s_out,"NEXTPROTO is ");
++ BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
++ BIO_printf(bio_s_out, "\n");
++ }
++#endif
+ if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
+ if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
+ TLS1_FLAGS_TLS_PADDING_BUG)
+--- openssl-1.0.0b.orig/include/openssl/ssl.h 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/include/openssl/ssl.h 2010-11-29 19:56:04.965928855 +0000
+@@ -857,6 +857,25 @@ struct ssl_ctx_st
+ /* draft-rescorla-tls-opaque-prf-input-00.txt information */
+ int (*tlsext_opaque_prf_input_callback)(SSL *, void *peerinput, size_t len, void *arg);
+ void *tlsext_opaque_prf_input_callback_arg;
++
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ /* Next protocol negotiation information */
++ /* (for experimental NPN extension). */
++
++ /* For a server, this contains a callback function by which the set of
++ * advertised protocols can be provided. */
++ int (*next_protos_advertised_cb)(SSL *s, const unsigned char **buf,
++ unsigned int *len, void *arg);
++ void *next_protos_advertised_cb_arg;
++ /* For a client, this contains a callback function that selects the
++ * next protocol from the list provided by the server. */
++ int (*next_proto_select_cb)(SSL *s, unsigned char **out,
++ unsigned char *outlen,
++ const unsigned char *in,
++ unsigned int inlen,
++ void *arg);
++ void *next_proto_select_cb_arg;
++# endif
+ #endif
+
+ #ifndef OPENSSL_NO_PSK
+@@ -928,6 +947,30 @@ int SSL_CTX_set_client_cert_engine(SSL_C
+ #endif
+ void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx, int (*app_gen_cookie_cb)(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len));
+ void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx, int (*app_verify_cookie_cb)(SSL *ssl, unsigned char *cookie, unsigned int cookie_len));
++#ifndef OPENSSL_NO_NEXTPROTONEG
++void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s,
++ int (*cb) (SSL *ssl,
++ const unsigned char **out,
++ unsigned int *outlen,
++ void *arg), void *arg);
++void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s,
++ int (*cb) (SSL *ssl, unsigned char **out,
++ unsigned char *outlen,
++ const unsigned char *in,
++ unsigned int inlen, void *arg),
++ void *arg);
++
++int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
++ const unsigned char *in, unsigned int inlen,
++ const unsigned char *client, unsigned int client_len);
++void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
++ unsigned *len);
++
++#define OPENSSL_NPN_UNSUPPORTED 0
++#define OPENSSL_NPN_NEGOTIATED 1
++#define OPENSSL_NPN_NO_OVERLAP 2
++
++#endif
+
+ #ifndef OPENSSL_NO_PSK
+ /* the maximum length of the buffer given to callbacks containing the
+@@ -1187,6 +1230,19 @@ struct ssl_st
+ void *tls_session_secret_cb_arg;
+
+ SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
++
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ /* Next protocol negotiation. For the client, this is the protocol that
++ * we sent in NextProtocol and is set when handling ServerHello
++ * extensions.
++ *
++ * For a server, this is the client's selected_protocol from
++ * NextProtocol and is set when handling the NextProtocol message,
++ * before the Finished message. */
++ unsigned char *next_proto_negotiated;
++ unsigned char next_proto_negotiated_len;
++#endif
++
+ #define session_ctx initial_ctx
+ #else
+ #define session_ctx ctx
+@@ -1919,6 +1975,7 @@ void ERR_load_SSL_strings(void);
+ #define SSL_F_SSL3_GET_KEY_EXCHANGE 141
+ #define SSL_F_SSL3_GET_MESSAGE 142
+ #define SSL_F_SSL3_GET_NEW_SESSION_TICKET 283
++#define SSL_F_SSL3_GET_NEXT_PROTO 304
+ #define SSL_F_SSL3_GET_RECORD 143
+ #define SSL_F_SSL3_GET_SERVER_CERTIFICATE 144
+ #define SSL_F_SSL3_GET_SERVER_DONE 145
+@@ -2117,6 +2174,8 @@ void ERR_load_SSL_strings(void);
+ #define SSL_R_EXCESSIVE_MESSAGE_SIZE 152
+ #define SSL_R_EXTRA_DATA_IN_MESSAGE 153
+ #define SSL_R_GOT_A_FIN_BEFORE_A_CCS 154
++#define SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS 346
++#define SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION 347
+ #define SSL_R_HTTPS_PROXY_REQUEST 155
+ #define SSL_R_HTTP_REQUEST 156
+ #define SSL_R_ILLEGAL_PADDING 283
+--- openssl-1.0.0b.orig/include/openssl/ssl3.h 2010-11-29 19:56:04.832465351 +0000
++++ openssl-1.0.0b/include/openssl/ssl3.h 2010-11-29 19:56:04.965928855 +0000
+@@ -465,6 +465,12 @@ typedef struct ssl3_state_st
+ void *server_opaque_prf_input;
+ size_t server_opaque_prf_input_len;
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ /* Set if we saw the Next Protocol Negotiation extension from
++ our peer. */
++ int next_proto_neg_seen;
++#endif
++
+ struct {
+ /* actually only needs to be 16+20 */
+ unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
+@@ -557,6 +563,10 @@ typedef struct ssl3_state_st
+ #define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
+ #define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
+ #define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
++#ifndef OPENSSL_NO_NEXTPROTONEG
++#define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
++#define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
++#endif
+ #define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
+ #define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
+ /* read from server */
+@@ -602,6 +612,10 @@ typedef struct ssl3_state_st
+ #define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
+ #define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
+ #define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
++#ifndef OPENSSL_NO_NEXTPROTONEG
++#define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
++#define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
++#endif
+ #define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
+ #define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
+ /* write to client */
+@@ -626,6 +640,9 @@ typedef struct ssl3_state_st
+ #define SSL3_MT_CLIENT_KEY_EXCHANGE 16
+ #define SSL3_MT_FINISHED 20
+ #define SSL3_MT_CERTIFICATE_STATUS 22
++#ifndef OPENSSL_NO_NEXTPROTONEG
++#define SSL3_MT_NEXT_PROTO 67
++#endif
+ #define DTLS1_MT_HELLO_VERIFY_REQUEST 3
+
+
+--- openssl-1.0.0b.orig/include/openssl/tls1.h 2009-11-11 14:51:29.000000000 +0000
++++ openssl-1.0.0b/include/openssl/tls1.h 2010-11-29 19:56:04.965928855 +0000
+@@ -204,6 +204,11 @@ extern "C" {
+ /* Temporary extension type */
+ #define TLSEXT_TYPE_renegotiate 0xff01
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++/* This is not an IANA defined extension number */
++#define TLSEXT_TYPE_next_proto_neg 13172
++#endif
++
+ /* NameType value from RFC 3546 */
+ #define TLSEXT_NAMETYPE_host_name 0
+ /* status request value from RFC 3546 */
+--- openssl-1.0.0b.orig/ssl/s3_both.c 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/s3_both.c 2010-11-29 19:56:04.965928855 +0000
+@@ -202,15 +202,40 @@ int ssl3_send_finished(SSL *s, int a, in
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++/* ssl3_take_mac calculates the Finished MAC for the handshakes messages seen to far. */
++static void ssl3_take_mac(SSL *s)
++ {
++ const char *sender;
++ int slen;
++
++ if (s->state & SSL_ST_CONNECT)
++ {
++ sender=s->method->ssl3_enc->server_finished_label;
++ slen=s->method->ssl3_enc->server_finished_label_len;
++ }
++ else
++ {
++ sender=s->method->ssl3_enc->client_finished_label;
++ slen=s->method->ssl3_enc->client_finished_label_len;
++ }
++
++ s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s,
++ sender,slen,s->s3->tmp.peer_finish_md);
++ }
++#endif
++
+ int ssl3_get_finished(SSL *s, int a, int b)
+ {
+ int al,i,ok;
+ long n;
+ unsigned char *p;
+
++#ifdef OPENSSL_NO_NEXTPROTONEG
+ /* the mac has already been generated when we received the
+ * change cipher spec message and is in s->s3->tmp.peer_finish_md
+ */
++#endif
+
+ n=s->method->ssl_get_message(s,
+ a,
+@@ -521,6 +546,15 @@ long ssl3_get_message(SSL *s, int st1, i
+ s->init_num += i;
+ n -= i;
+ }
++
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ /* If receiving Finished, record MAC of prior handshake messages for
++ * Finished verification. */
++ if (*s->init_buf->data == SSL3_MT_FINISHED)
++ ssl3_take_mac(s);
++#endif
++
++ /* Feed this message into MAC computation. */
+ ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
+--- openssl-1.0.0b.orig/ssl/s3_clnt.c 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/s3_clnt.c 2010-11-29 19:56:04.965928855 +0000
+@@ -435,7 +435,16 @@ int ssl3_connect(SSL *s)
+ ret=ssl3_send_change_cipher_spec(s,
+ SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
+ if (ret <= 0) goto end;
++
++#if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG)
+ s->state=SSL3_ST_CW_FINISHED_A;
++#else
++ if (s->next_proto_negotiated)
++ s->state=SSL3_ST_CW_NEXT_PROTO_A;
++ else
++ s->state=SSL3_ST_CW_FINISHED_A;
++#endif
++
+ s->init_num=0;
+
+ s->session->cipher=s->s3->tmp.new_cipher;
+@@ -463,6 +472,15 @@ int ssl3_connect(SSL *s)
+
+ break;
+
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ case SSL3_ST_CW_NEXT_PROTO_A:
++ case SSL3_ST_CW_NEXT_PROTO_B:
++ ret=ssl3_send_next_proto(s);
++ if (ret <= 0) goto end;
++ s->state=SSL3_ST_CW_FINISHED_A;
++ break;
++#endif
++
+ case SSL3_ST_CW_FINISHED_A:
+ case SSL3_ST_CW_FINISHED_B:
+ ret=ssl3_send_finished(s,
+@@ -3060,6 +3078,32 @@ err:
+ */
+
+ #ifndef OPENSSL_NO_TLSEXT
++# ifndef OPENSSL_NO_NEXTPROTONEG
++int ssl3_send_next_proto(SSL *s)
++ {
++ unsigned int len, padding_len;
++ unsigned char *d;
++
++ if (s->state == SSL3_ST_CW_NEXT_PROTO_A)
++ {
++ len = s->next_proto_negotiated_len;
++ padding_len = 32 - ((len + 2) % 32);
++ d = (unsigned char *)s->init_buf->data;
++ d[4] = len;
++ memcpy(d + 5, s->next_proto_negotiated, len);
++ d[5 + len] = padding_len;
++ memset(d + 6 + len, 0, padding_len);
++ *(d++)=SSL3_MT_NEXT_PROTO;
++ l2n3(2 + len + padding_len, d);
++ s->state = SSL3_ST_CW_NEXT_PROTO_B;
++ s->init_num = 4 + 2 + len + padding_len;
++ s->init_off = 0;
++ }
++
++ return ssl3_do_write(s, SSL3_RT_HANDSHAKE);
++ }
++# endif
++
+ int ssl3_check_finished(SSL *s)
+ {
+ int ok;
+--- openssl-1.0.0b.orig/ssl/s3_lib.c 2010-11-29 19:56:04.832465351 +0000
++++ openssl-1.0.0b/ssl/s3_lib.c 2010-11-29 19:56:04.965928855 +0000
+@@ -2230,6 +2230,15 @@ void ssl3_clear(SSL *s)
+ s->s3->num_renegotiations=0;
+ s->s3->in_read_app_data=0;
+ s->version=SSL3_VERSION;
++
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ if (s->next_proto_negotiated)
++ {
++ OPENSSL_free(s->next_proto_negotiated);
++ s->next_proto_negotiated = NULL;
++ s->next_proto_negotiated_len = 0;
++ }
++#endif
+ }
+
+ long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg)
+--- openssl-1.0.0b.orig/ssl/s3_pkt.c 2010-11-29 19:56:04.832465351 +0000
++++ openssl-1.0.0b/ssl/s3_pkt.c 2010-11-29 19:56:04.965928855 +0000
+@@ -1394,8 +1394,10 @@ err:
+ int ssl3_do_change_cipher_spec(SSL *s)
+ {
+ int i;
++#ifdef OPENSSL_NO_NEXTPROTONEG
+ const char *sender;
+ int slen;
++#endif
+
+ if (s->state & SSL_ST_ACCEPT)
+ i=SSL3_CHANGE_CIPHER_SERVER_READ;
+@@ -1418,6 +1420,7 @@ int ssl3_do_change_cipher_spec(SSL *s)
+ if (!s->method->ssl3_enc->change_cipher_state(s,i))
+ return(0);
+
++#ifdef OPENSSL_NO_NEXTPROTONEG
+ /* we have to record the message digest at
+ * this point so we can get it before we read
+ * the finished message */
+@@ -1434,6 +1437,7 @@ int ssl3_do_change_cipher_spec(SSL *s)
+
+ s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s,
+ sender,slen,s->s3->tmp.peer_finish_md);
++#endif
+
+ return(1);
+ }
+--- openssl-1.0.0b.orig/ssl/s3_srvr.c 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/s3_srvr.c 2010-11-29 19:56:04.965928855 +0000
+@@ -538,7 +538,14 @@ int ssl3_accept(SSL *s)
+ * the client uses its key from the certificate
+ * for key exchange.
+ */
++#if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG)
+ s->state=SSL3_ST_SR_FINISHED_A;
++#else
++ if (s->s3->next_proto_neg_seen)
++ s->state=SSL3_ST_SR_NEXT_PROTO_A;
++ else
++ s->state=SSL3_ST_SR_FINISHED_A;
++#endif
+ s->init_num = 0;
+ }
+ else
+@@ -581,10 +588,27 @@ int ssl3_accept(SSL *s)
+ ret=ssl3_get_cert_verify(s);
+ if (ret <= 0) goto end;
+
++#if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG)
+ s->state=SSL3_ST_SR_FINISHED_A;
++#else
++ if (s->s3->next_proto_neg_seen)
++ s->state=SSL3_ST_SR_NEXT_PROTO_A;
++ else
++ s->state=SSL3_ST_SR_FINISHED_A;
++#endif
+ s->init_num=0;
+ break;
+
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ case SSL3_ST_SR_NEXT_PROTO_A:
++ case SSL3_ST_SR_NEXT_PROTO_B:
++ ret=ssl3_get_next_proto(s);
++ if (ret <= 0) goto end;
++ s->init_num = 0;
++ s->state=SSL3_ST_SR_FINISHED_A;
++ break;
++#endif
++
+ case SSL3_ST_SR_FINISHED_A:
+ case SSL3_ST_SR_FINISHED_B:
+ ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,
+@@ -655,7 +679,16 @@ int ssl3_accept(SSL *s)
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_SW_FLUSH;
+ if (s->hit)
++ {
++#if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG)
+ s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;
++#else
++ if (s->s3->next_proto_neg_seen)
++ s->s3->tmp.next_state=SSL3_ST_SR_NEXT_PROTO_A;
++ else
++ s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;
++#endif
++ }
+ else
+ s->s3->tmp.next_state=SSL_ST_OK;
+ s->init_num=0;
+@@ -3196,4 +3229,72 @@ int ssl3_send_cert_status(SSL *s)
+ /* SSL3_ST_SW_CERT_STATUS_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
++
++# ifndef OPENSSL_NO_NPN
++/* ssl3_get_next_proto reads a Next Protocol Negotiation handshake message. It
++ * sets the next_proto member in s if found */
++int ssl3_get_next_proto(SSL *s)
++ {
++ int ok;
++ unsigned proto_len, padding_len;
++ long n;
++ const unsigned char *p;
++
++ /* Clients cannot send a NextProtocol message if we didn't see the
++ * extension in their ClientHello */
++ if (!s->s3->next_proto_neg_seen)
++ {
++ SSLerr(SSL_F_SSL3_GET_NEXT_PROTO,SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION);
++ return -1;
++ }
++
++ n=s->method->ssl_get_message(s,
++ SSL3_ST_SR_NEXT_PROTO_A,
++ SSL3_ST_SR_NEXT_PROTO_B,
++ SSL3_MT_NEXT_PROTO,
++ 514, /* See the payload format below */
++ &ok);
++
++ if (!ok)
++ return((int)n);
++
++ /* s->state doesn't reflect whether ChangeCipherSpec has been received
++ * in this handshake, but s->s3->change_cipher_spec does (will be reset
++ * by ssl3_get_finished). */
++ if (!s->s3->change_cipher_spec)
++ {
++ SSLerr(SSL_F_SSL3_GET_NEXT_PROTO,SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS);
++ return -1;
++ }
++
++ if (n < 2)
++ return 0; /* The body must be > 1 bytes long */
++
++ p=(unsigned char *)s->init_msg;
++
++ /* The payload looks like:
++ * uint8 proto_len;
++ * uint8 proto[proto_len];
++ * uint8 padding_len;
++ * uint8 padding[padding_len];
++ */
++ proto_len = p[0];
++ if (proto_len + 2 > s->init_num)
++ return 0;
++ padding_len = p[proto_len + 1];
++ if (proto_len + padding_len + 2 != s->init_num)
++ return 0;
++
++ s->next_proto_negotiated = OPENSSL_malloc(proto_len);
++ if (!s->next_proto_negotiated)
++ {
++ SSLerr(SSL_F_SSL3_GET_NEXT_PROTO,ERR_R_MALLOC_FAILURE);
++ return 0;
++ }
++ memcpy(s->next_proto_negotiated, p + 1, proto_len);
++ s->next_proto_negotiated_len = proto_len;
++
++ return 1;
++ }
++# endif
+ #endif
+--- openssl-1.0.0b.orig/ssl/ssl.h 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/ssl.h 2010-11-29 19:56:04.965928855 +0000
+@@ -857,6 +857,25 @@ struct ssl_ctx_st
+ /* draft-rescorla-tls-opaque-prf-input-00.txt information */
+ int (*tlsext_opaque_prf_input_callback)(SSL *, void *peerinput, size_t len, void *arg);
+ void *tlsext_opaque_prf_input_callback_arg;
++
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ /* Next protocol negotiation information */
++ /* (for experimental NPN extension). */
++
++ /* For a server, this contains a callback function by which the set of
++ * advertised protocols can be provided. */
++ int (*next_protos_advertised_cb)(SSL *s, const unsigned char **buf,
++ unsigned int *len, void *arg);
++ void *next_protos_advertised_cb_arg;
++ /* For a client, this contains a callback function that selects the
++ * next protocol from the list provided by the server. */
++ int (*next_proto_select_cb)(SSL *s, unsigned char **out,
++ unsigned char *outlen,
++ const unsigned char *in,
++ unsigned int inlen,
++ void *arg);
++ void *next_proto_select_cb_arg;
++# endif
+ #endif
+
+ #ifndef OPENSSL_NO_PSK
+@@ -928,6 +947,30 @@ int SSL_CTX_set_client_cert_engine(SSL_C
+ #endif
+ void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx, int (*app_gen_cookie_cb)(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len));
+ void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx, int (*app_verify_cookie_cb)(SSL *ssl, unsigned char *cookie, unsigned int cookie_len));
++#ifndef OPENSSL_NO_NEXTPROTONEG
++void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s,
++ int (*cb) (SSL *ssl,
++ const unsigned char **out,
++ unsigned int *outlen,
++ void *arg), void *arg);
++void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s,
++ int (*cb) (SSL *ssl, unsigned char **out,
++ unsigned char *outlen,
++ const unsigned char *in,
++ unsigned int inlen, void *arg),
++ void *arg);
++
++int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
++ const unsigned char *in, unsigned int inlen,
++ const unsigned char *client, unsigned int client_len);
++void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
++ unsigned *len);
++
++#define OPENSSL_NPN_UNSUPPORTED 0
++#define OPENSSL_NPN_NEGOTIATED 1
++#define OPENSSL_NPN_NO_OVERLAP 2
++
++#endif
+
+ #ifndef OPENSSL_NO_PSK
+ /* the maximum length of the buffer given to callbacks containing the
+@@ -1187,6 +1230,19 @@ struct ssl_st
+ void *tls_session_secret_cb_arg;
+
+ SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
++
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ /* Next protocol negotiation. For the client, this is the protocol that
++ * we sent in NextProtocol and is set when handling ServerHello
++ * extensions.
++ *
++ * For a server, this is the client's selected_protocol from
++ * NextProtocol and is set when handling the NextProtocol message,
++ * before the Finished message. */
++ unsigned char *next_proto_negotiated;
++ unsigned char next_proto_negotiated_len;
++#endif
++
+ #define session_ctx initial_ctx
+ #else
+ #define session_ctx ctx
+@@ -1919,6 +1975,7 @@ void ERR_load_SSL_strings(void);
+ #define SSL_F_SSL3_GET_KEY_EXCHANGE 141
+ #define SSL_F_SSL3_GET_MESSAGE 142
+ #define SSL_F_SSL3_GET_NEW_SESSION_TICKET 283
++#define SSL_F_SSL3_GET_NEXT_PROTO 304
+ #define SSL_F_SSL3_GET_RECORD 143
+ #define SSL_F_SSL3_GET_SERVER_CERTIFICATE 144
+ #define SSL_F_SSL3_GET_SERVER_DONE 145
+@@ -2117,6 +2174,8 @@ void ERR_load_SSL_strings(void);
+ #define SSL_R_EXCESSIVE_MESSAGE_SIZE 152
+ #define SSL_R_EXTRA_DATA_IN_MESSAGE 153
+ #define SSL_R_GOT_A_FIN_BEFORE_A_CCS 154
++#define SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS 346
++#define SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION 347
+ #define SSL_R_HTTPS_PROXY_REQUEST 155
+ #define SSL_R_HTTP_REQUEST 156
+ #define SSL_R_ILLEGAL_PADDING 283
+--- openssl-1.0.0b.orig/ssl/ssl3.h 2010-11-29 19:56:04.832465351 +0000
++++ openssl-1.0.0b/ssl/ssl3.h 2010-11-29 19:56:04.965928855 +0000
+@@ -465,6 +465,12 @@ typedef struct ssl3_state_st
+ void *server_opaque_prf_input;
+ size_t server_opaque_prf_input_len;
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ /* Set if we saw the Next Protocol Negotiation extension from
++ our peer. */
++ int next_proto_neg_seen;
++#endif
++
+ struct {
+ /* actually only needs to be 16+20 */
+ unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
+@@ -557,6 +563,10 @@ typedef struct ssl3_state_st
+ #define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
+ #define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
+ #define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
++#ifndef OPENSSL_NO_NEXTPROTONEG
++#define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
++#define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
++#endif
+ #define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
+ #define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
+ /* read from server */
+@@ -602,6 +612,10 @@ typedef struct ssl3_state_st
+ #define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
+ #define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
+ #define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
++#ifndef OPENSSL_NO_NEXTPROTONEG
++#define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
++#define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
++#endif
+ #define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
+ #define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
+ /* write to client */
+@@ -626,6 +640,9 @@ typedef struct ssl3_state_st
+ #define SSL3_MT_CLIENT_KEY_EXCHANGE 16
+ #define SSL3_MT_FINISHED 20
+ #define SSL3_MT_CERTIFICATE_STATUS 22
++#ifndef OPENSSL_NO_NEXTPROTONEG
++#define SSL3_MT_NEXT_PROTO 67
++#endif
+ #define DTLS1_MT_HELLO_VERIFY_REQUEST 3
+
+
+--- openssl-1.0.0b.orig/ssl/ssl_err.c 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/ssl_err.c 2010-11-29 19:56:04.965928855 +0000
+@@ -155,6 +155,7 @@ static ERR_STRING_DATA SSL_str_functs[]=
+ {ERR_FUNC(SSL_F_SSL3_GET_KEY_EXCHANGE), "SSL3_GET_KEY_EXCHANGE"},
+ {ERR_FUNC(SSL_F_SSL3_GET_MESSAGE), "SSL3_GET_MESSAGE"},
+ {ERR_FUNC(SSL_F_SSL3_GET_NEW_SESSION_TICKET), "SSL3_GET_NEW_SESSION_TICKET"},
++{ERR_FUNC(SSL_F_SSL3_GET_NEXT_PROTO), "SSL3_GET_NEXT_PROTO"},
+ {ERR_FUNC(SSL_F_SSL3_GET_RECORD), "SSL3_GET_RECORD"},
+ {ERR_FUNC(SSL_F_SSL3_GET_SERVER_CERTIFICATE), "SSL3_GET_SERVER_CERTIFICATE"},
+ {ERR_FUNC(SSL_F_SSL3_GET_SERVER_DONE), "SSL3_GET_SERVER_DONE"},
+@@ -355,6 +356,8 @@ static ERR_STRING_DATA SSL_str_reasons[]
+ {ERR_REASON(SSL_R_EXCESSIVE_MESSAGE_SIZE),"excessive message size"},
+ {ERR_REASON(SSL_R_EXTRA_DATA_IN_MESSAGE) ,"extra data in message"},
+ {ERR_REASON(SSL_R_GOT_A_FIN_BEFORE_A_CCS),"got a fin before a ccs"},
++{ERR_REASON(SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS),"got next proto before a ccs"},
++{ERR_REASON(SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION),"got next proto without seeing extension"},
+ {ERR_REASON(SSL_R_HTTPS_PROXY_REQUEST) ,"https proxy request"},
+ {ERR_REASON(SSL_R_HTTP_REQUEST) ,"http request"},
+ {ERR_REASON(SSL_R_ILLEGAL_PADDING) ,"illegal padding"},
+--- openssl-1.0.0b.orig/ssl/ssl_lib.c 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/ssl_lib.c 2010-11-29 19:56:04.965928855 +0000
+@@ -354,6 +354,9 @@ SSL *SSL_new(SSL_CTX *ctx)
+ s->tlsext_ocsp_resplen = -1;
+ CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
+ s->initial_ctx=ctx;
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ s->next_proto_negotiated = NULL;
++# endif
+ #endif
+
+ s->verify_result=X509_V_OK;
+@@ -587,6 +590,11 @@ void SSL_free(SSL *s)
+ kssl_ctx_free(s->kssl_ctx);
+ #endif /* OPENSSL_NO_KRB5 */
+
++#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
++ if (s->next_proto_negotiated)
++ OPENSSL_free(s->next_proto_negotiated);
++#endif
++
+ OPENSSL_free(s);
+ }
+
+@@ -1503,6 +1511,124 @@ int SSL_get_servername_type(const SSL *s
+ return TLSEXT_NAMETYPE_host_name;
+ return -1;
+ }
++
++# ifndef OPENSSL_NO_NEXTPROTONEG
++/* SSL_select_next_proto implements the standard protocol selection. It is
++ * expected that this function is called from the callback set by
++ * SSL_CTX_set_next_proto_select_cb.
++ *
++ * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
++ * strings. The length byte itself is not included in the length. A byte
++ * string of length 0 is invalid. No byte string may be truncated.
++ *
++ * The current, but experimental algorithm for selecting the protocol is:
++ *
++ * 1) If the server doesn't support NPN then this is indicated to the
++ * callback. In this case, the client application has to abort the connection
++ * or have a default application level protocol.
++ *
++ * 2) If the server supports NPN, but advertises an empty list then the
++ * client selects the first protcol in its list, but indicates via the
++ * API that this fallback case was enacted.
++ *
++ * 3) Otherwise, the client finds the first protocol in the server's list
++ * that it supports and selects this protocol. This is because it's
++ * assumed that the server has better information about which protocol
++ * a client should use.
++ *
++ * 4) If the client doesn't support any of the server's advertised
++ * protocols, then this is treated the same as case 2.
++ *
++ * It returns either
++ * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
++ * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
++ */
++int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, const unsigned char *server, unsigned int server_len, const unsigned char *client, unsigned int client_len)
++ {
++ unsigned int i, j;
++ const unsigned char *result;
++ int status = OPENSSL_NPN_UNSUPPORTED;
++
++ /* For each protocol in server preference order, see if we support it. */
++ for (i = 0; i < server_len; )
++ {
++ for (j = 0; j < client_len; )
++ {
++ if (server[i] == client[j] &&
++ memcmp(&server[i+1], &client[j+1], server[i]) == 0)
++ {
++ /* We found a match */
++ result = &server[i];
++ status = OPENSSL_NPN_NEGOTIATED;
++ goto found;
++ }
++ j += client[j];
++ j++;
++ }
++ i += server[i];
++ i++;
++ }
++
++ /* There's no overlap between our protocols and the server's list. */
++ result = client;
++ status = OPENSSL_NPN_NO_OVERLAP;
++
++ found:
++ *out = (unsigned char *) result + 1;
++ *outlen = result[0];
++ return status;
++ }
++
++/* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
++ * requested protocol for this connection and returns 0. If the client didn't
++ * request any protocol, then *data is set to NULL.
++ *
++ * Note that the client can request any protocol it chooses. The value returned
++ * from this function need not be a member of the list of supported protocols
++ * provided by the callback.
++ */
++void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
++ {
++ *data = s->next_proto_negotiated;
++ if (!*data) {
++ *len = 0;
++ } else {
++ *len = s->next_proto_negotiated_len;
++ }
++}
++
++/* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
++ * TLS server needs a list of supported protocols for Next Protocol
++ * Negotiation. The returned list must be in wire format. The list is returned
++ * by setting |out| to point to it and |outlen| to its length. This memory will
++ * not be modified, but one should assume that the SSL* keeps a reference to
++ * it.
++ *
++ * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
++ * such extension will be included in the ServerHello. */
++void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg), void *arg)
++ {
++ ctx->next_protos_advertised_cb = cb;
++ ctx->next_protos_advertised_cb_arg = arg;
++ }
++
++/* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
++ * client needs to select a protocol from the server's provided list. |out|
++ * must be set to point to the selected protocol (which may be within |in|).
++ * The length of the protocol name must be written into |outlen|. The server's
++ * advertised protocols are provided in |in| and |inlen|. The callback can
++ * assume that |in| is syntactically valid.
++ *
++ * The client must select a protocol. It is fatal to the connection if this
++ * callback returns a value other than SSL_TLSEXT_ERR_OK.
++ */
++void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg), void *arg)
++ {
++ ctx->next_proto_select_cb = cb;
++ ctx->next_proto_select_cb_arg = arg;
++ }
++
++# endif
+ #endif
+
+ static unsigned long ssl_session_hash(const SSL_SESSION *a)
+@@ -1667,6 +1793,10 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *m
+ ret->tlsext_status_cb = 0;
+ ret->tlsext_status_arg = NULL;
+
++# ifndef OPENSSL_NO_NEXTPROTONEG
++ ret->next_protos_advertised_cb = 0;
++ ret->next_proto_select_cb = 0;
++# endif
+ #endif
+ #ifndef OPENSSL_NO_PSK
+ ret->psk_identity_hint=NULL;
+--- openssl-1.0.0b.orig/ssl/ssl_locl.h 2010-11-29 19:56:04.846517045 +0000
++++ openssl-1.0.0b/ssl/ssl_locl.h 2010-11-29 19:56:04.965928855 +0000
+@@ -968,6 +968,9 @@ int ssl3_get_server_certificate(SSL *s);
+ int ssl3_check_cert_and_algorithm(SSL *s);
+ #ifndef OPENSSL_NO_TLSEXT
+ int ssl3_check_finished(SSL *s);
++# ifndef OPENSSL_NO_NEXTPROTONEG
++int ssl3_send_next_proto(SSL *s);
++# endif
+ #endif
+
+ int dtls1_client_hello(SSL *s);
+@@ -986,6 +989,9 @@ int ssl3_check_client_hello(SSL *s);
+ int ssl3_get_client_certificate(SSL *s);
+ int ssl3_get_client_key_exchange(SSL *s);
+ int ssl3_get_cert_verify(SSL *s);
++#ifndef OPENSSL_NO_NEXTPROTONEG
++int ssl3_get_next_proto(SSL *s);
++#endif
+
+ int dtls1_send_hello_request(SSL *s);
+ int dtls1_send_server_hello(SSL *s);
+--- openssl-1.0.0b.orig/ssl/t1_lib.c 2010-11-16 13:26:24.000000000 +0000
++++ openssl-1.0.0b/ssl/t1_lib.c 2010-11-29 19:56:04.965928855 +0000
+@@ -494,6 +494,18 @@ unsigned char *ssl_add_clienthello_tlsex
+ i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, &ret);
+ }
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ if (s->ctx->next_proto_select_cb && !s->s3->tmp.finish_md_len)
++ {
++ /* The client advertises an emtpy extension to indicate its
++ * support for Next Protocol Negotiation */
++ if (limit - ret - 4 < 0)
++ return NULL;
++ s2n(TLSEXT_TYPE_next_proto_neg,ret);
++ s2n(0,ret);
++ }
++#endif
++
+ if ((extdatalen = ret-p-2)== 0)
+ return p;
+
+@@ -505,6 +517,9 @@ unsigned char *ssl_add_serverhello_tlsex
+ {
+ int extdatalen=0;
+ unsigned char *ret = p;
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ int next_proto_neg_seen;
++#endif
+
+ /* don't add extensions for SSLv3, unless doing secure renegotiation */
+ if (s->version == SSL3_VERSION && !s->s3->send_connection_binding)
+@@ -618,6 +633,28 @@ unsigned char *ssl_add_serverhello_tlsex
+
+ }
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ next_proto_neg_seen = s->s3->next_proto_neg_seen;
++ s->s3->next_proto_neg_seen = 0;
++ if (next_proto_neg_seen && s->ctx->next_protos_advertised_cb)
++ {
++ const unsigned char *npa;
++ unsigned int npalen;
++ int r;
++
++ r = s->ctx->next_protos_advertised_cb(s, &npa, &npalen, s->ctx->next_protos_advertised_cb_arg);
++ if (r == SSL_TLSEXT_ERR_OK)
++ {
++ if ((long)(limit - ret - 4 - npalen) < 0) return NULL;
++ s2n(TLSEXT_TYPE_next_proto_neg,ret);
++ s2n(npalen,ret);
++ memcpy(ret, npa, npalen);
++ ret += npalen;
++ s->s3->next_proto_neg_seen = 1;
++ }
++ }
++#endif
++
+ if ((extdatalen = ret-p-2)== 0)
+ return p;
+
+@@ -982,6 +1019,28 @@ int ssl_parse_clienthello_tlsext(SSL *s,
+ else
+ s->tlsext_status_type = -1;
+ }
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ else if (type == TLSEXT_TYPE_next_proto_neg &&
++ s->s3->tmp.finish_md_len == 0)
++ {
++ /* We shouldn't accept this extension on a
++ * renegotiation.
++ *
++ * s->new_session will be set on renegotiation, but we
++ * probably shouldn't rely that it couldn't be set on
++ * the initial renegotation too in certain cases (when
++ * there's some other reason to disallow resuming an
++ * earlier session -- the current code won't be doing
++ * anything like that, but this might change).
++
++ * A valid sign that there's been a previous handshake
++ * in this connection is if s->s3->tmp.finish_md_len >
++ * 0. (We are talking about a check that will happen
++ * in the Hello protocol round, well before a new
++ * Finished message could have been computed.) */
++ s->s3->next_proto_neg_seen = 1;
++ }
++#endif
+
+ /* session ticket processed earlier */
+ data+=size;
+@@ -1005,6 +1064,26 @@ int ssl_parse_clienthello_tlsext(SSL *s,
+ return 1;
+ }
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++/* ssl_next_proto_validate validates a Next Protocol Negotiation block. No
++ * elements of zero length are allowed and the set of elements must exactly fill
++ * the length of the block. */
++static int ssl_next_proto_validate(unsigned char *d, unsigned len)
++ {
++ unsigned int off = 0;
++
++ while (off < len)
++ {
++ if (d[off] == 0)
++ return 0;
++ off += d[off];
++ off++;
++ }
++
++ return off == len;
++ }
++#endif
++
+ int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, int n, int *al)
+ {
+ unsigned short length;
+@@ -1139,6 +1218,39 @@ int ssl_parse_serverhello_tlsext(SSL *s,
+ /* Set flag to expect CertificateStatus message */
+ s->tlsext_status_expected = 1;
+ }
++#ifndef OPENSSL_NO_NEXTPROTONEG
++ else if (type == TLSEXT_TYPE_next_proto_neg)
++ {
++ unsigned char *selected;
++ unsigned char selected_len;
++
++ /* We must have requested it. */
++ if ((s->ctx->next_proto_select_cb == NULL))
++ {
++ *al = TLS1_AD_UNSUPPORTED_EXTENSION;
++ return 0;
++ }
++ /* The data must be valid */
++ if (!ssl_next_proto_validate(data, size))
++ {
++ *al = TLS1_AD_DECODE_ERROR;
++ return 0;
++ }
++ if (s->ctx->next_proto_select_cb(s, &selected, &selected_len, data, size, s->ctx->next_proto_select_cb_arg) != SSL_TLSEXT_ERR_OK)
++ {
++ *al = TLS1_AD_INTERNAL_ERROR;
++ return 0;
++ }
++ s->next_proto_negotiated = OPENSSL_malloc(selected_len);
++ if (!s->next_proto_negotiated)
++ {
++ *al = TLS1_AD_INTERNAL_ERROR;
++ return 0;
++ }
++ memcpy(s->next_proto_negotiated, selected, selected_len);
++ s->next_proto_negotiated_len = selected_len;
++ }
++#endif
+ else if (type == TLSEXT_TYPE_renegotiate)
+ {
+ if(!ssl_parse_serverhello_renegotiate_ext(s, data, size, al))
+--- openssl-1.0.0b.orig/ssl/tls1.h 2009-11-11 14:51:29.000000000 +0000
++++ openssl-1.0.0b/ssl/tls1.h 2010-11-29 19:56:04.965928855 +0000
+@@ -204,6 +204,11 @@ extern "C" {
+ /* Temporary extension type */
+ #define TLSEXT_TYPE_renegotiate 0xff01
+
++#ifndef OPENSSL_NO_NEXTPROTONEG
++/* This is not an IANA defined extension number */
++#define TLSEXT_TYPE_next_proto_neg 13172
++#endif
++
+ /* NameType value from RFC 3546 */
+ #define TLSEXT_NAMETYPE_host_name 0
+ /* status request value from RFC 3546 */
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