diff options
Diffstat (limited to 'openssl/crypto/x509/by_dir.c')
| -rw-r--r-- | openssl/crypto/x509/by_dir.c | 482 |
1 files changed, 482 insertions, 0 deletions
diff --git a/openssl/crypto/x509/by_dir.c b/openssl/crypto/x509/by_dir.c new file mode 100644 index 00000000..27ca5150 --- /dev/null +++ b/openssl/crypto/x509/by_dir.c @@ -0,0 +1,482 @@ +/* crypto/x509/by_dir.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * 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: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * 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 + * 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 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * 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 + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <time.h> +#include <errno.h> + +#include "cryptlib.h" + +#ifndef NO_SYS_TYPES_H +# include <sys/types.h> +#endif +#ifndef OPENSSL_NO_POSIX_IO +# include <sys/stat.h> +#endif + +#include <openssl/lhash.h> +#include <openssl/x509.h> + + +typedef struct lookup_dir_hashes_st + { + unsigned long hash; + int suffix; + } BY_DIR_HASH; + +typedef struct lookup_dir_entry_st + { + char *dir; + int dir_type; + STACK_OF(BY_DIR_HASH) *hashes; + } BY_DIR_ENTRY; + +typedef struct lookup_dir_st + { + BUF_MEM *buffer; + STACK_OF(BY_DIR_ENTRY) *dirs; + } BY_DIR; + +DECLARE_STACK_OF(BY_DIR_HASH) +DECLARE_STACK_OF(BY_DIR_ENTRY) + +static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, + char **ret); +static int new_dir(X509_LOOKUP *lu); +static void free_dir(X509_LOOKUP *lu); +static int add_cert_dir(BY_DIR *ctx,const char *dir,int type); +static int get_cert_by_subject(X509_LOOKUP *xl,int type,X509_NAME *name, + X509_OBJECT *ret); +X509_LOOKUP_METHOD x509_dir_lookup= + { + "Load certs from files in a directory", + new_dir, /* new */ + free_dir, /* free */ + NULL, /* init */ + NULL, /* shutdown */ + dir_ctrl, /* ctrl */ + get_cert_by_subject, /* get_by_subject */ + NULL, /* get_by_issuer_serial */ + NULL, /* get_by_fingerprint */ + NULL, /* get_by_alias */ + }; + +X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void) + { + return(&x509_dir_lookup); + } + +static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, + char **retp) + { + int ret=0; + BY_DIR *ld; + char *dir = NULL; + + ld=(BY_DIR *)ctx->method_data; + + switch (cmd) + { + case X509_L_ADD_DIR: + if (argl == X509_FILETYPE_DEFAULT) + { + dir=(char *)getenv(X509_get_default_cert_dir_env()); + if (dir) + ret=add_cert_dir(ld,dir,X509_FILETYPE_PEM); + else + ret=add_cert_dir(ld,X509_get_default_cert_dir(), + X509_FILETYPE_PEM); + if (!ret) + { + X509err(X509_F_DIR_CTRL,X509_R_LOADING_CERT_DIR); + } + } + else + ret=add_cert_dir(ld,argp,(int)argl); + break; + } + return(ret); + } + +static int new_dir(X509_LOOKUP *lu) + { + BY_DIR *a; + + if ((a=(BY_DIR *)OPENSSL_malloc(sizeof(BY_DIR))) == NULL) + return(0); + if ((a->buffer=BUF_MEM_new()) == NULL) + { + OPENSSL_free(a); + return(0); + } + a->dirs=NULL; + lu->method_data=(char *)a; + return(1); + } + +static void by_dir_hash_free(BY_DIR_HASH *hash) + { + OPENSSL_free(hash); + } + +static int by_dir_hash_cmp(const BY_DIR_HASH * const *a, + const BY_DIR_HASH * const *b) + { + if ((*a)->hash > (*b)->hash) + return 1; + if ((*a)->hash < (*b)->hash) + return -1; + return 0; + } + +static void by_dir_entry_free(BY_DIR_ENTRY *ent) + { + if (ent->dir) + OPENSSL_free(ent->dir); + if (ent->hashes) + sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free); + OPENSSL_free(ent); + } + +static void free_dir(X509_LOOKUP *lu) + { + BY_DIR *a; + + a=(BY_DIR *)lu->method_data; + if (a->dirs != NULL) + sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free); + if (a->buffer != NULL) + BUF_MEM_free(a->buffer); + OPENSSL_free(a); + } + +static int add_cert_dir(BY_DIR *ctx, const char *dir, int type) + { + int j,len; + const char *s,*ss,*p; + + if (dir == NULL || !*dir) + { + X509err(X509_F_ADD_CERT_DIR,X509_R_INVALID_DIRECTORY); + return 0; + } + + s=dir; + p=s; + for (;;p++) + { + if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) + { + BY_DIR_ENTRY *ent; + ss=s; + s=p+1; + len=(int)(p-ss); + if (len == 0) continue; + for (j=0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) + { + ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j); + if (strlen(ent->dir) == (size_t)len && + strncmp(ent->dir,ss,(unsigned int)len) == 0) + break; + } + if (j < sk_BY_DIR_ENTRY_num(ctx->dirs)) + continue; + if (ctx->dirs == NULL) + { + ctx->dirs = sk_BY_DIR_ENTRY_new_null(); + if (!ctx->dirs) + { + X509err(X509_F_ADD_CERT_DIR,ERR_R_MALLOC_FAILURE); + return 0; + } + } + ent = OPENSSL_malloc(sizeof(BY_DIR_ENTRY)); + if (!ent) + return 0; + ent->dir_type = type; + ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp); + ent->dir = OPENSSL_malloc((unsigned int)len+1); + if (!ent->dir || !ent->hashes) + { + by_dir_entry_free(ent); + return 0; + } + strncpy(ent->dir,ss,(unsigned int)len); + ent->dir[len] = '\0'; + if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) + { + by_dir_entry_free(ent); + return 0; + } + } + if (*p == '\0') + break; + } + return 1; + } + +static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name, + X509_OBJECT *ret) + { + BY_DIR *ctx; + union { + struct { + X509 st_x509; + X509_CINF st_x509_cinf; + } x509; + struct { + X509_CRL st_crl; + X509_CRL_INFO st_crl_info; + } crl; + } data; + int ok=0; + int i,j,k; + unsigned long h; + BUF_MEM *b=NULL; + X509_OBJECT stmp,*tmp; + const char *postfix=""; + + if (name == NULL) return(0); + + stmp.type=type; + if (type == X509_LU_X509) + { + data.x509.st_x509.cert_info= &data.x509.st_x509_cinf; + data.x509.st_x509_cinf.subject=name; + stmp.data.x509= &data.x509.st_x509; + postfix=""; + } + else if (type == X509_LU_CRL) + { + data.crl.st_crl.crl= &data.crl.st_crl_info; + data.crl.st_crl_info.issuer=name; + stmp.data.crl= &data.crl.st_crl; + postfix="r"; + } + else + { + X509err(X509_F_GET_CERT_BY_SUBJECT,X509_R_WRONG_LOOKUP_TYPE); + goto finish; + } + + if ((b=BUF_MEM_new()) == NULL) + { + X509err(X509_F_GET_CERT_BY_SUBJECT,ERR_R_BUF_LIB); + goto finish; + } + + ctx=(BY_DIR *)xl->method_data; + + h=X509_NAME_hash(name); + for (i=0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) + { + BY_DIR_ENTRY *ent; + int idx; + BY_DIR_HASH htmp, *hent; + ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i); + j=strlen(ent->dir)+1+8+6+1+1; + if (!BUF_MEM_grow(b,j)) + { + X509err(X509_F_GET_CERT_BY_SUBJECT,ERR_R_MALLOC_FAILURE); + goto finish; + } + if (type == X509_LU_CRL && ent->hashes) + { + htmp.hash = h; + CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE); + idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp); + if (idx >= 0) + { + hent = sk_BY_DIR_HASH_value(ent->hashes, idx); + k = hent->suffix; + } + else + { + hent = NULL; + k=0; + } + CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE); + } + else + { + k = 0; + hent = NULL; + } + for (;;) + { + char c = '/'; +#ifdef OPENSSL_SYS_VMS + c = ent->dir[strlen(ent->dir)-1]; + if (c != ':' && c != '>' && c != ']') + { + /* If no separator is present, we assume the + directory specifier is a logical name, and + add a colon. We really should use better + VMS routines for merging things like this, + but this will do for now... + -- Richard Levitte */ + c = ':'; + } + else + { + c = '\0'; + } +#endif + if (c == '\0') + { + /* This is special. When c == '\0', no + directory separator should be added. */ + BIO_snprintf(b->data,b->max, + "%s%08lx.%s%d",ent->dir,h, + postfix,k); + } + else + { + BIO_snprintf(b->data,b->max, + "%s%c%08lx.%s%d",ent->dir,c,h, + postfix,k); + } +#ifndef OPENSSL_NO_POSIX_IO +#ifdef _WIN32 +#define stat _stat +#endif + { + struct stat st; + if (stat(b->data,&st) < 0) + break; + } +#endif + /* found one. */ + if (type == X509_LU_X509) + { + if ((X509_load_cert_file(xl,b->data, + ent->dir_type)) == 0) + break; + } + else if (type == X509_LU_CRL) + { + if ((X509_load_crl_file(xl,b->data, + ent->dir_type)) == 0) + break; + } + /* else case will caught higher up */ + k++; + } + + /* we have added it to the cache so now pull + * it out again */ + CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); + j = sk_X509_OBJECT_find(xl->store_ctx->objs,&stmp); + if(j != -1) tmp=sk_X509_OBJECT_value(xl->store_ctx->objs,j); + else tmp = NULL; + CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); + + + /* If a CRL, update the last file suffix added for this */ + + if (type == X509_LU_CRL) + { + CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); + /* Look for entry again in case another thread added + * an entry first. + */ + if (!hent) + { + htmp.hash = h; + idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp); + if (idx >= 0) + hent = + sk_BY_DIR_HASH_value(ent->hashes, idx); + } + if (!hent) + { + hent = OPENSSL_malloc(sizeof(BY_DIR_HASH)); + hent->hash = h; + hent->suffix = k; + if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) + { + CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); + OPENSSL_free(hent); + ok = 0; + goto finish; + } + } + else if (hent->suffix < k) + hent->suffix = k; + + CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); + + } + + if (tmp != NULL) + { + ok=1; + ret->type=tmp->type; + memcpy(&ret->data,&tmp->data,sizeof(ret->data)); + /* If we were going to up the reference count, + * we would need to do it on a perl 'type' + * basis */ + /* CRYPTO_add(&tmp->data.x509->references,1, + CRYPTO_LOCK_X509);*/ + goto finish; + } + } +finish: + if (b != NULL) BUF_MEM_free(b); + return(ok); + } |