diff options
Diffstat (limited to 'lib/libcrypto/asn1/x_name.c')
| -rw-r--r-- | lib/libcrypto/asn1/x_name.c | 249 |
1 files changed, 135 insertions, 114 deletions
diff --git a/lib/libcrypto/asn1/x_name.c b/lib/libcrypto/asn1/x_name.c index d10ac5acd1e..70459babc43 100644 --- a/lib/libcrypto/asn1/x_name.c +++ b/lib/libcrypto/asn1/x_name.c @@ -5,21 +5,21 @@ * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +34,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +49,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -66,13 +66,12 @@ typedef STACK_OF(X509_NAME_ENTRY) STACK_OF_X509_NAME_ENTRY; DECLARE_STACK_OF(STACK_OF_X509_NAME_ENTRY) -static int x509_name_ex_d2i(ASN1_VALUE **val, - const unsigned char **in, long len, - const ASN1_ITEM *it, - int tag, int aclass, char opt, ASN1_TLC *ctx); +static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, + long len, const ASN1_ITEM *it, int tag, int aclass, char opt, + ASN1_TLC *ctx); static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, - const ASN1_ITEM *it, int tag, int aclass); + const ASN1_ITEM *it, int tag, int aclass); static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it); static void x509_name_ex_free(ASN1_VALUE **val, const ASN1_ITEM *it); @@ -80,13 +79,10 @@ static int x509_name_encode(X509_NAME *a); static int x509_name_canon(X509_NAME *a); static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in); static int i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) *intname, - unsigned char **in); + unsigned char **in); - -static int x509_name_ex_print(BIO *out, ASN1_VALUE **pval, - int indent, - const char *fname, - const ASN1_PCTX *pctx); +static int x509_name_ex_print(BIO *out, ASN1_VALUE **pval, int indent, + const char *fname, const ASN1_PCTX *pctx); ASN1_SEQUENCE(X509_NAME_ENTRY) = { ASN1_SIMPLE(X509_NAME_ENTRY, object, ASN1_OBJECT), @@ -101,11 +97,11 @@ IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME_ENTRY) */ ASN1_ITEM_TEMPLATE(X509_NAME_ENTRIES) = - ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY) + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY) ASN1_ITEM_TEMPLATE_END(X509_NAME_ENTRIES) ASN1_ITEM_TEMPLATE(X509_NAME_INTERNAL) = - ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES) + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES) ASN1_ITEM_TEMPLATE_END(X509_NAME_INTERNAL) /* Normally that's where it would end: we'd have two nested STACK structures @@ -124,26 +120,30 @@ const ASN1_EXTERN_FUNCS x509_name_ff = { x509_name_ex_print }; -IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff) +IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff) IMPLEMENT_ASN1_FUNCTIONS(X509_NAME) IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME) -static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it) +static int +x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it) { X509_NAME *ret = NULL; + ret = malloc(sizeof(X509_NAME)); - if(!ret) goto memerr; - if ((ret->entries=sk_X509_NAME_ENTRY_new_null()) == NULL) + if (!ret) + goto memerr; + if ((ret->entries = sk_X509_NAME_ENTRY_new_null()) == NULL) + goto memerr; + if ((ret->bytes = BUF_MEM_new()) == NULL) goto memerr; - if((ret->bytes = BUF_MEM_new()) == NULL) goto memerr; ret->canon_enc = NULL; ret->canon_enclen = 0; - ret->modified=1; + ret->modified = 1; *val = (ASN1_VALUE *)ret; return 1; - memerr: +memerr: ASN1err(ASN1_F_X509_NAME_EX_NEW, ERR_R_MALLOC_FAILURE); if (ret) { if (ret->entries) @@ -153,54 +153,64 @@ static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it) return 0; } -static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) +static void +x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) { X509_NAME *a; - if(!pval || !*pval) - return; + + if (!pval || !*pval) + return; a = (X509_NAME *)*pval; BUF_MEM_free(a->bytes); - sk_X509_NAME_ENTRY_pop_free(a->entries,X509_NAME_ENTRY_free); + sk_X509_NAME_ENTRY_pop_free(a->entries, X509_NAME_ENTRY_free); if (a->canon_enc) free(a->canon_enc); free(a); *pval = NULL; } -static int x509_name_ex_d2i(ASN1_VALUE **val, - const unsigned char **in, long len, const ASN1_ITEM *it, - int tag, int aclass, char opt, ASN1_TLC *ctx) +static int +x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, + const ASN1_ITEM *it, int tag, int aclass, char opt, ASN1_TLC *ctx) { const unsigned char *p = *in, *q; - union { STACK_OF(STACK_OF_X509_NAME_ENTRY) *s; - ASN1_VALUE *a; } intname = {NULL}; - union { X509_NAME *x; ASN1_VALUE *a; } nm = {NULL}; + union { + STACK_OF(STACK_OF_X509_NAME_ENTRY) *s; + ASN1_VALUE *a; + } intname = {NULL}; + union { + X509_NAME *x; + ASN1_VALUE *a; + } nm = {NULL}; int i, j, ret; STACK_OF(X509_NAME_ENTRY) *entries; X509_NAME_ENTRY *entry; q = p; /* Get internal representation of Name */ - ret = ASN1_item_ex_d2i(&intname.a, - &p, len, ASN1_ITEM_rptr(X509_NAME_INTERNAL), - tag, aclass, opt, ctx); - - if(ret <= 0) return ret; - - if(*val) x509_name_ex_free(val, NULL); - if(!x509_name_ex_new(&nm.a, NULL)) goto err; + ret = ASN1_item_ex_d2i(&intname.a, &p, len, + ASN1_ITEM_rptr(X509_NAME_INTERNAL), tag, aclass, opt, ctx); + + if (ret <= 0) + return ret; + + if (*val) + x509_name_ex_free(val, NULL); + if (!x509_name_ex_new(&nm.a, NULL)) + goto err; /* We've decoded it: now cache encoding */ - if(!BUF_MEM_grow(nm.x->bytes, p - q)) goto err; + if (!BUF_MEM_grow(nm.x->bytes, p - q)) + goto err; memcpy(nm.x->bytes->data, q, p - q); /* Convert internal representation to X509_NAME structure */ - for(i = 0; i < sk_STACK_OF_X509_NAME_ENTRY_num(intname.s); i++) { + for (i = 0; i < sk_STACK_OF_X509_NAME_ENTRY_num(intname.s); i++) { entries = sk_STACK_OF_X509_NAME_ENTRY_value(intname.s, i); - for(j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) { + for (j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) { entry = sk_X509_NAME_ENTRY_value(entries, j); entry->set = i; - if(!sk_X509_NAME_ENTRY_push(nm.x->entries, entry)) + if (!sk_X509_NAME_ENTRY_push(nm.x->entries, entry)) goto err; } sk_X509_NAME_ENTRY_free(entries); @@ -213,90 +223,104 @@ static int x509_name_ex_d2i(ASN1_VALUE **val, *val = nm.a; *in = p; return ret; + err: - if (nm.x != NULL) + if (nm.x != NULL) X509_NAME_free(nm.x); ASN1err(ASN1_F_X509_NAME_EX_D2I, ERR_R_NESTED_ASN1_ERROR); return 0; } -static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass) +static int +x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, + int tag, int aclass) { int ret; X509_NAME *a = (X509_NAME *)*val; - if(a->modified) { + + if (a->modified) { ret = x509_name_encode(a); - if(ret < 0) + if (ret < 0) return ret; ret = x509_name_canon(a); - if(ret < 0) + if (ret < 0) return ret; } ret = a->bytes->length; - if(out != NULL) { - memcpy(*out,a->bytes->data,ret); - *out+=ret; + if (out != NULL) { + memcpy(*out, a->bytes->data, ret); + *out += ret; } return ret; } -static void local_sk_X509_NAME_ENTRY_free(STACK_OF(X509_NAME_ENTRY) *ne) +static void +local_sk_X509_NAME_ENTRY_free(STACK_OF(X509_NAME_ENTRY) *ne) { sk_X509_NAME_ENTRY_free(ne); } -static void local_sk_X509_NAME_ENTRY_pop_free(STACK_OF(X509_NAME_ENTRY) *ne) +static void +local_sk_X509_NAME_ENTRY_pop_free(STACK_OF(X509_NAME_ENTRY) *ne) { sk_X509_NAME_ENTRY_pop_free(ne, X509_NAME_ENTRY_free); } -static int x509_name_encode(X509_NAME *a) +static int +x509_name_encode(X509_NAME *a) { - union { STACK_OF(STACK_OF_X509_NAME_ENTRY) *s; - ASN1_VALUE *a; } intname = {NULL}; + union { + STACK_OF(STACK_OF_X509_NAME_ENTRY) *s; + ASN1_VALUE *a; + } intname = {NULL}; int len; unsigned char *p; STACK_OF(X509_NAME_ENTRY) *entries = NULL; X509_NAME_ENTRY *entry; int i, set = -1; + intname.s = sk_STACK_OF_X509_NAME_ENTRY_new_null(); - if(!intname.s) goto memerr; - for(i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { + if (!intname.s) + goto memerr; + for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { entry = sk_X509_NAME_ENTRY_value(a->entries, i); - if(entry->set != set) { + if (entry->set != set) { entries = sk_X509_NAME_ENTRY_new_null(); - if(!entries) goto memerr; - if(!sk_STACK_OF_X509_NAME_ENTRY_push(intname.s, - entries)) + if (!entries) + goto memerr; + if (!sk_STACK_OF_X509_NAME_ENTRY_push(intname.s, + entries)) goto memerr; set = entry->set; } - if(!sk_X509_NAME_ENTRY_push(entries, entry)) goto memerr; + if (!sk_X509_NAME_ENTRY_push(entries, entry)) + goto memerr; } len = ASN1_item_ex_i2d(&intname.a, NULL, - ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1); - if (!BUF_MEM_grow(a->bytes,len)) goto memerr; - p=(unsigned char *)a->bytes->data; - ASN1_item_ex_i2d(&intname.a, - &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1); + ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1); + if (!BUF_MEM_grow(a->bytes, len)) + goto memerr; + p = (unsigned char *)a->bytes->data; + ASN1_item_ex_i2d(&intname.a, &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), + -1, -1); sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname.s, - local_sk_X509_NAME_ENTRY_free); + local_sk_X509_NAME_ENTRY_free); a->modified = 0; return len; + memerr: sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname.s, - local_sk_X509_NAME_ENTRY_free); + local_sk_X509_NAME_ENTRY_free); ASN1err(ASN1_F_X509_NAME_ENCODE, ERR_R_MALLOC_FAILURE); return -1; } -static int x509_name_ex_print(BIO *out, ASN1_VALUE **pval, - int indent, - const char *fname, - const ASN1_PCTX *pctx) +static int +x509_name_ex_print(BIO *out, ASN1_VALUE **pval, int indent, const char *fname, + const ASN1_PCTX *pctx) { - if (X509_NAME_print_ex(out, (X509_NAME *)*pval, - indent, pctx->nm_flags) <= 0) + if (X509_NAME_print_ex(out, (X509_NAME *)*pval, indent, + pctx->nm_flags) <= 0) return 0; return 2; } @@ -314,7 +338,8 @@ static int x509_name_ex_print(BIO *out, ASN1_VALUE **pval, * dirName can also be checked with a simple memcmp(). */ -static int x509_name_canon(X509_NAME *a) +static int +x509_name_canon(X509_NAME *a) { unsigned char *p; STACK_OF(STACK_OF_X509_NAME_ENTRY) *intname = NULL; @@ -325,22 +350,22 @@ static int x509_name_canon(X509_NAME *a) if (a->canon_enc) { free(a->canon_enc); a->canon_enc = NULL; - } + } /* Special case: empty X509_NAME => null encoding */ if (sk_X509_NAME_ENTRY_num(a->entries) == 0) { a->canon_enclen = 0; return 1; } intname = sk_STACK_OF_X509_NAME_ENTRY_new_null(); - if(!intname) + if (!intname) goto err; - for(i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { + for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { entry = sk_X509_NAME_ENTRY_value(a->entries, i); - if(entry->set != set) { + if (entry->set != set) { entries = sk_X509_NAME_ENTRY_new_null(); - if(!entries) + if (!entries) goto err; - if(!sk_STACK_OF_X509_NAME_ENTRY_push(intname, entries)) + if (!sk_STACK_OF_X509_NAME_ENTRY_push(intname, entries)) goto err; set = entry->set; } @@ -348,33 +373,27 @@ static int x509_name_canon(X509_NAME *a) tmpentry->object = OBJ_dup(entry->object); if (!asn1_string_canon(tmpentry->value, entry->value)) goto err; - if(!sk_X509_NAME_ENTRY_push(entries, tmpentry)) + if (!sk_X509_NAME_ENTRY_push(entries, tmpentry)) goto err; tmpentry = NULL; } /* Finally generate encoding */ - a->canon_enclen = i2d_name_canon(intname, NULL); - p = malloc(a->canon_enclen); - if (!p) goto err; - a->canon_enc = p; - i2d_name_canon(intname, &p); - ret = 1; - err: +err: if (tmpentry) X509_NAME_ENTRY_free(tmpentry); if (intname) sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname, - local_sk_X509_NAME_ENTRY_pop_free); + local_sk_X509_NAME_ENTRY_pop_free); return ret; } @@ -384,9 +403,10 @@ static int x509_name_canon(X509_NAME *a) (B_ASN1_UTF8STRING | B_ASN1_BMPSTRING | B_ASN1_UNIVERSALSTRING \ | B_ASN1_PRINTABLESTRING | B_ASN1_T61STRING | B_ASN1_IA5STRING \ | B_ASN1_VISIBLESTRING) - -static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in) + +static int +asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in) { unsigned char *to, *from; int len, i; @@ -415,7 +435,7 @@ static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in) */ /* Ignore leading spaces */ - while((len > 0) && !(*from & 0x80) && isspace(*from)) { + while ((len > 0) && !(*from & 0x80) && isspace(*from)) { from++; len--; } @@ -431,24 +451,24 @@ static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in) to = out->data; i = 0; - while(i < len) { + while (i < len) { /* If MSB set just copy across */ if (*from & 0x80) { *to++ = *from++; i++; - } + } /* Collapse multiple spaces */ else if (isspace(*from)) { /* Copy one space across */ *to++ = ' '; /* Ignore subsequent spaces. Note: don't need to - * check len here because we know the last + * check len here because we know the last * character is a non-space so we can't overflow. */ do { from++; i++; - } while(!(*from & 0x80) && isspace(*from)); + } while (!(*from & 0x80) && isspace(*from)); } else { *to++ = tolower(*from); from++; @@ -459,11 +479,10 @@ static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in) out->length = to - out->data; return 1; - } -static int i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) *_intname, - unsigned char **in) +static int +i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) *_intname, unsigned char **in) { int i, len, ltmp; ASN1_VALUE *v; @@ -473,7 +492,7 @@ static int i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) *_intname, for (i = 0; i < sk_ASN1_VALUE_num(intname); i++) { v = sk_ASN1_VALUE_value(intname, i); ltmp = ASN1_item_ex_i2d(&v, in, - ASN1_ITEM_rptr(X509_NAME_ENTRIES), -1, -1); + ASN1_ITEM_rptr(X509_NAME_ENTRIES), -1, -1); if (ltmp < 0) return ltmp; len += ltmp; @@ -481,21 +500,23 @@ static int i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) *_intname, return len; } -int X509_NAME_set(X509_NAME **xn, X509_NAME *name) +int +X509_NAME_set(X509_NAME **xn, X509_NAME *name) { X509_NAME *in; - if (!xn || !name) return(0); + if (!xn || !name) + return (0); if (*xn != name) { - in=X509_NAME_dup(name); + in = X509_NAME_dup(name); if (in != NULL) { X509_NAME_free(*xn); - *xn=in; + *xn = in; } } - return(*xn != NULL); + return (*xn != NULL); } - + IMPLEMENT_STACK_OF(X509_NAME_ENTRY) IMPLEMENT_ASN1_SET_OF(X509_NAME_ENTRY) |
