diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2009-06-28 16:23:05 +0000 |
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committer | Dr. Stephen Henson <steve@openssl.org> | 2009-06-28 16:23:05 +0000 |
commit | ab8fe43fa23e920c9ac535f7ca7d9a5e2aa92ebc (patch) | |
tree | 81731a545a9c587070aa2994d191040f16b24068 /ssl/d1_both.c | |
parent | 5e4c2225ed9ba0747309bbb9ef78a3a77e807607 (diff) |
PR: 1942
Submitted by: David Woodhouse <dwmw2@infradead.org>
Approved by: steve@openssl.org
Replace ad-hoc chain builder with X509_verify_cert().
Diffstat (limited to 'ssl/d1_both.c')
-rw-r--r-- | ssl/d1_both.c | 89 |
1 files changed, 42 insertions, 47 deletions
diff --git a/ssl/d1_both.c b/ssl/d1_both.c index 69b6b10ba2..996f3a77b3 100644 --- a/ssl/d1_both.c +++ b/ssl/d1_both.c @@ -815,14 +815,30 @@ int dtls1_send_change_cipher_spec(SSL *s, int a, int b) return(dtls1_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC)); } +static int dtls1_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) + { + int n; + unsigned char *p; + + n=i2d_X509(x,NULL); + if (!BUF_MEM_grow_clean(buf,(int)(n+(*l)+3))) + { + SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return 0; + } + p=(unsigned char *)&(buf->data[*l]); + l2n3(n,p); + i2d_X509(x,&p); + *l+=n+3; + + return 1; + } unsigned long dtls1_output_cert_chain(SSL *s, X509 *x) { unsigned char *p; - int n,i; + int i; unsigned long l= 3 + DTLS1_HM_HEADER_LENGTH; BUF_MEM *buf; - X509_STORE_CTX xs_ctx; - X509_OBJECT obj; /* TLSv1 sends a chain with nothing in it, instead of an alert */ buf=s->init_buf; @@ -833,54 +849,33 @@ unsigned long dtls1_output_cert_chain(SSL *s, X509 *x) } if (x != NULL) { - if(!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL)) - { - SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB); - return(0); - } - - for (;;) - { - n=i2d_X509(x,NULL); - if (!BUF_MEM_grow_clean(buf,(int)(n+l+3))) - { - SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); - return(0); - } - p=(unsigned char *)&(buf->data[l]); - l2n3(n,p); - i2d_X509(x,&p); - l+=n+3; - if (X509_NAME_cmp(X509_get_subject_name(x), - X509_get_issuer_name(x)) == 0) break; - - i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509, - X509_get_issuer_name(x),&obj); - if (i <= 0) break; - x=obj.data.x509; - /* Count is one too high since the X509_STORE_get uped the - * ref count */ - X509_free(x); - } - - X509_STORE_CTX_cleanup(&xs_ctx); - } - + X509_STORE_CTX xs_ctx; + + if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL)) + { + SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB); + return(0); + } + + X509_verify_cert(&xs_ctx); + for (i=0; i < sk_X509_num(xs_ctx.chain); i++) + { + x = sk_X509_value(xs_ctx.chain, i); + + if (!dtls1_add_cert_to_buf(buf, &l, x)) + { + X509_STORE_CTX_cleanup(&xs_ctx); + return 0; + } + } + X509_STORE_CTX_cleanup(&xs_ctx); + } /* Thawte special :-) */ - if (s->ctx->extra_certs != NULL) for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++) { x=sk_X509_value(s->ctx->extra_certs,i); - n=i2d_X509(x,NULL); - if (!BUF_MEM_grow_clean(buf,(int)(n+l+3))) - { - SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); - return(0); - } - p=(unsigned char *)&(buf->data[l]); - l2n3(n,p); - i2d_X509(x,&p); - l+=n+3; + if (!dtls1_add_cert_to_buf(buf, &l, x)) + return 0; } l-= (3 + DTLS1_HM_HEADER_LENGTH); |