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-rw-r--r--crypto/openssl/ssl/ssl_ciph.c1069
1 files changed, 0 insertions, 1069 deletions
diff --git a/crypto/openssl/ssl/ssl_ciph.c b/crypto/openssl/ssl/ssl_ciph.c
deleted file mode 100644
index 7436a50ad14d1..0000000000000
--- a/crypto/openssl/ssl/ssl_ciph.c
+++ /dev/null
@@ -1,1069 +0,0 @@
-/* ssl/ssl_ciph.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 <openssl/objects.h>
-#include <openssl/comp.h>
-#include "ssl_locl.h"
-
-#define SSL_ENC_DES_IDX 0
-#define SSL_ENC_3DES_IDX 1
-#define SSL_ENC_RC4_IDX 2
-#define SSL_ENC_RC2_IDX 3
-#define SSL_ENC_IDEA_IDX 4
-#define SSL_ENC_eFZA_IDX 5
-#define SSL_ENC_NULL_IDX 6
-#define SSL_ENC_NUM_IDX 7
-
-static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL,
- };
-
-static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL;
-
-#define SSL_MD_MD5_IDX 0
-#define SSL_MD_SHA1_IDX 1
-#define SSL_MD_NUM_IDX 2
-static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
- NULL,NULL,
- };
-
-#define CIPHER_ADD 1
-#define CIPHER_KILL 2
-#define CIPHER_DEL 3
-#define CIPHER_ORD 4
-#define CIPHER_SPECIAL 5
-
-typedef struct cipher_order_st
- {
- SSL_CIPHER *cipher;
- int active;
- int dead;
- struct cipher_order_st *next,*prev;
- } CIPHER_ORDER;
-
-static const SSL_CIPHER cipher_aliases[]={
- /* Don't include eNULL unless specifically enabled */
- {0,SSL_TXT_ALL, 0,SSL_ALL & ~SSL_eNULL, SSL_ALL ,0,0,0,SSL_ALL,SSL_ALL}, /* must be first */
- {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_DH, 0,SSL_DH, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_EDH, 0,SSL_EDH, 0,0,0,0,SSL_MKEY_MASK|SSL_AUTH_MASK,0},
-
- {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aNULL,0,SSL_aNULL,0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aDH, 0,SSL_aDH, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_DSS, 0,SSL_DSS, 0,0,0,0,SSL_AUTH_MASK,0},
-
- {0,SSL_TXT_DES, 0,SSL_DES, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_3DES,0,SSL_3DES, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_RC4, 0,SSL_RC4, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_RC2, 0,SSL_RC2, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_eNULL,0,SSL_eNULL,0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,0,0,0,SSL_ENC_MASK,0},
-
- {0,SSL_TXT_MD5, 0,SSL_MD5, 0,0,0,0,SSL_MAC_MASK,0},
- {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,0,0,0,SSL_MAC_MASK,0},
- {0,SSL_TXT_SHA, 0,SSL_SHA, 0,0,0,0,SSL_MAC_MASK,0},
-
- {0,SSL_TXT_NULL,0,SSL_NULL, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_RSA, 0,SSL_RSA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
- {0,SSL_TXT_ADH, 0,SSL_ADH, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
- {0,SSL_TXT_FZA, 0,SSL_FZA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK,0},
-
- {0,SSL_TXT_SSLV2, 0,SSL_SSLV2, 0,0,0,0,SSL_SSL_MASK,0},
- {0,SSL_TXT_SSLV3, 0,SSL_SSLV3, 0,0,0,0,SSL_SSL_MASK,0},
- {0,SSL_TXT_TLSV1, 0,SSL_TLSV1, 0,0,0,0,SSL_SSL_MASK,0},
-
- {0,SSL_TXT_EXP ,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK},
- {0,SSL_TXT_EXPORT,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK},
- {0,SSL_TXT_EXP40, 0, 0, SSL_EXP40, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_EXP56, 0, 0, SSL_EXP56, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_LOW, 0, 0, SSL_LOW, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_MEDIUM,0, 0,SSL_MEDIUM, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_HIGH, 0, 0, SSL_HIGH, 0,0,0,0,SSL_STRONG_MASK},
- };
-
-static int init_ciphers=1;
-
-static void load_ciphers(void)
- {
- init_ciphers=0;
- ssl_cipher_methods[SSL_ENC_DES_IDX]=
- EVP_get_cipherbyname(SN_des_cbc);
- ssl_cipher_methods[SSL_ENC_3DES_IDX]=
- EVP_get_cipherbyname(SN_des_ede3_cbc);
- ssl_cipher_methods[SSL_ENC_RC4_IDX]=
- EVP_get_cipherbyname(SN_rc4);
- ssl_cipher_methods[SSL_ENC_RC2_IDX]=
- EVP_get_cipherbyname(SN_rc2_cbc);
- ssl_cipher_methods[SSL_ENC_IDEA_IDX]=
- EVP_get_cipherbyname(SN_idea_cbc);
-
- ssl_digest_methods[SSL_MD_MD5_IDX]=
- EVP_get_digestbyname(SN_md5);
- ssl_digest_methods[SSL_MD_SHA1_IDX]=
- EVP_get_digestbyname(SN_sha1);
- }
-
-int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc,
- const EVP_MD **md, SSL_COMP **comp)
- {
- int i;
- SSL_CIPHER *c;
-
- c=s->cipher;
- if (c == NULL) return(0);
- if (comp != NULL)
- {
- SSL_COMP ctmp;
-
- if (s->compress_meth == 0)
- *comp=NULL;
- else if (ssl_comp_methods == NULL)
- {
- /* bad */
- *comp=NULL;
- }
- else
- {
-
- ctmp.id=s->compress_meth;
- i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp);
- if (i >= 0)
- *comp=sk_SSL_COMP_value(ssl_comp_methods,i);
- else
- *comp=NULL;
- }
- }
-
- if ((enc == NULL) || (md == NULL)) return(0);
-
- switch (c->algorithms & SSL_ENC_MASK)
- {
- case SSL_DES:
- i=SSL_ENC_DES_IDX;
- break;
- case SSL_3DES:
- i=SSL_ENC_3DES_IDX;
- break;
- case SSL_RC4:
- i=SSL_ENC_RC4_IDX;
- break;
- case SSL_RC2:
- i=SSL_ENC_RC2_IDX;
- break;
- case SSL_IDEA:
- i=SSL_ENC_IDEA_IDX;
- break;
- case SSL_eNULL:
- i=SSL_ENC_NULL_IDX;
- break;
- default:
- i= -1;
- break;
- }
-
- if ((i < 0) || (i > SSL_ENC_NUM_IDX))
- *enc=NULL;
- else
- {
- if (i == SSL_ENC_NULL_IDX)
- *enc=EVP_enc_null();
- else
- *enc=ssl_cipher_methods[i];
- }
-
- switch (c->algorithms & SSL_MAC_MASK)
- {
- case SSL_MD5:
- i=SSL_MD_MD5_IDX;
- break;
- case SSL_SHA1:
- i=SSL_MD_SHA1_IDX;
- break;
- default:
- i= -1;
- break;
- }
- if ((i < 0) || (i > SSL_MD_NUM_IDX))
- *md=NULL;
- else
- *md=ssl_digest_methods[i];
-
- if ((*enc != NULL) && (*md != NULL))
- return(1);
- else
- return(0);
- }
-
-#define ITEM_SEP(a) \
- (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
-
-static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
- CIPHER_ORDER **tail)
- {
- if (curr == *tail) return;
- if (curr == *head)
- *head=curr->next;
- if (curr->prev != NULL)
- curr->prev->next=curr->next;
- if (curr->next != NULL) /* should always be true */
- curr->next->prev=curr->prev;
- (*tail)->next=curr;
- curr->prev= *tail;
- curr->next=NULL;
- *tail=curr;
- }
-
-static unsigned long ssl_cipher_get_disabled(void)
- {
- unsigned long mask;
-
- mask = SSL_kFZA;
-#ifdef NO_RSA
- mask |= SSL_aRSA|SSL_kRSA;
-#endif
-#ifdef NO_DSA
- mask |= SSL_aDSS;
-#endif
-#ifdef NO_DH
- mask |= SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH;
-#endif
-
-#ifdef SSL_FORBID_ENULL
- mask |= SSL_eNULL;
-#endif
-
- mask |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0;
- mask |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0;
- mask |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0;
- mask |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0;
- mask |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0;
- mask |= (ssl_cipher_methods[SSL_ENC_eFZA_IDX] == NULL) ? SSL_eFZA:0;
-
- mask |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
- mask |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
-
- return(mask);
- }
-
-static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
- int num_of_ciphers, unsigned long mask, CIPHER_ORDER *list,
- CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
- {
- int i, list_num;
- SSL_CIPHER *c;
-
- /*
- * We have num_of_ciphers descriptions compiled in, depending on the
- * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
- * These will later be sorted in a linked list with at most num
- * entries.
- */
-
- /* Get the initial list of ciphers */
- list_num = 0; /* actual count of ciphers */
- for (i = 0; i < num_of_ciphers; i++)
- {
- c = ssl_method->get_cipher(i);
- /* drop those that use any of that is not available */
- if ((c != NULL) && c->valid && !(c->algorithms & mask))
- {
- list[list_num].cipher = c;
- list[list_num].next = NULL;
- list[list_num].prev = NULL;
- list[list_num].active = 0;
- list_num++;
- /*
- if (!sk_push(ca_list,(char *)c)) goto err;
- */
- }
- }
-
- /*
- * Prepare linked list from list entries
- */
- for (i = 1; i < list_num - 1; i++)
- {
- list[i].prev = &(list[i-1]);
- list[i].next = &(list[i+1]);
- }
- if (list_num > 0)
- {
- (*head_p) = &(list[0]);
- (*head_p)->prev = NULL;
- (*head_p)->next = &(list[1]);
- (*tail_p) = &(list[list_num - 1]);
- (*tail_p)->prev = &(list[list_num - 2]);
- (*tail_p)->next = NULL;
- }
- }
-
-static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list,
- int num_of_group_aliases, unsigned long mask,
- CIPHER_ORDER *head)
- {
- CIPHER_ORDER *ciph_curr;
- SSL_CIPHER **ca_curr;
- int i;
-
- /*
- * First, add the real ciphers as already collected
- */
- ciph_curr = head;
- ca_curr = ca_list;
- while (ciph_curr != NULL)
- {
- *ca_curr = ciph_curr->cipher;
- ca_curr++;
- ciph_curr = ciph_curr->next;
- }
-
- /*
- * Now we add the available ones from the cipher_aliases[] table.
- * They represent either an algorithm, that must be fully
- * supported (not match any bit in mask) or represent a cipher
- * strength value (will be added in any case because algorithms=0).
- */
- for (i = 0; i < num_of_group_aliases; i++)
- {
- if ((i == 0) || /* always fetch "ALL" */
- !(cipher_aliases[i].algorithms & mask))
- {
- *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
- ca_curr++;
- }
- }
-
- *ca_curr = NULL; /* end of list */
- }
-
-static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask,
- unsigned long algo_strength, unsigned long mask_strength,
- int rule, int strength_bits, CIPHER_ORDER *list,
- CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
- {
- CIPHER_ORDER *head, *tail, *curr, *curr2, *tail2;
- SSL_CIPHER *cp;
- unsigned long ma, ma_s;
-
-#ifdef CIPHER_DEBUG
- printf("Applying rule %d with %08lx %08lx %08lx %08lx (%d)\n",
- rule, algorithms, mask, algo_strength, mask_strength,
- strength_bits);
-#endif
-
- curr = head = *head_p;
- curr2 = head;
- tail2 = tail = *tail_p;
- for (;;)
- {
- if ((curr == NULL) || (curr == tail2)) break;
- curr = curr2;
- curr2 = curr->next;
-
- cp = curr->cipher;
-
- /*
- * Selection criteria is either the number of strength_bits
- * or the algorithm used.
- */
- if (strength_bits == -1)
- {
- ma = mask & cp->algorithms;
- ma_s = mask_strength & cp->algo_strength;
-
-#ifdef CIPHER_DEBUG
- printf("\nName: %s:\nAlgo = %08lx Algo_strength = %08lx\nMask = %08lx Mask_strength %08lx\n", cp->name, cp->algorithms, cp->algo_strength, mask, mask_strength);
- printf("ma = %08lx ma_s %08lx, ma&algo=%08lx, ma_s&algos=%08lx\n", ma, ma_s, ma&algorithms, ma_s&algo_strength);
-#endif
- /*
- * Select: if none of the mask bit was met from the
- * cipher or not all of the bits were met, the
- * selection does not apply.
- */
- if (((ma == 0) && (ma_s == 0)) ||
- ((ma & algorithms) != ma) ||
- ((ma_s & algo_strength) != ma_s))
- continue; /* does not apply */
- }
- else if (strength_bits != cp->strength_bits)
- continue; /* does not apply */
-
-#ifdef CIPHER_DEBUG
- printf("Action = %d\n", rule);
-#endif
-
- /* add the cipher if it has not been added yet. */
- if (rule == CIPHER_ADD)
- {
- if (!curr->active)
- {
- ll_append_tail(&head, curr, &tail);
- curr->active = 1;
- }
- }
- /* Move the added cipher to this location */
- else if (rule == CIPHER_ORD)
- {
- if (curr->active)
- {
- ll_append_tail(&head, curr, &tail);
- }
- }
- else if (rule == CIPHER_DEL)
- curr->active = 0;
- else if (rule == CIPHER_KILL)
- {
- if (head == curr)
- head = curr->next;
- else
- curr->prev->next = curr->next;
- if (tail == curr)
- tail = curr->prev;
- curr->active = 0;
- if (curr->next != NULL)
- curr->next->prev = curr->prev;
- if (curr->prev != NULL)
- curr->prev->next = curr->next;
- curr->next = NULL;
- curr->prev = NULL;
- }
- }
-
- *head_p = head;
- *tail_p = tail;
- }
-
-static int ssl_cipher_strength_sort(CIPHER_ORDER *list, CIPHER_ORDER **head_p,
- CIPHER_ORDER **tail_p)
- {
- int max_strength_bits, i, *number_uses;
- CIPHER_ORDER *curr;
-
- /*
- * This routine sorts the ciphers with descending strength. The sorting
- * must keep the pre-sorted sequence, so we apply the normal sorting
- * routine as '+' movement to the end of the list.
- */
- max_strength_bits = 0;
- curr = *head_p;
- while (curr != NULL)
- {
- if (curr->active &&
- (curr->cipher->strength_bits > max_strength_bits))
- max_strength_bits = curr->cipher->strength_bits;
- curr = curr->next;
- }
-
- number_uses = Malloc((max_strength_bits + 1) * sizeof(int));
- if (!number_uses)
- {
- SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE);
- return(0);
- }
- memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int));
-
- /*
- * Now find the strength_bits values actually used
- */
- curr = *head_p;
- while (curr != NULL)
- {
- if (curr->active)
- number_uses[curr->cipher->strength_bits]++;
- curr = curr->next;
- }
- /*
- * Go through the list of used strength_bits values in descending
- * order.
- */
- for (i = max_strength_bits; i >= 0; i--)
- if (number_uses[i] > 0)
- ssl_cipher_apply_rule(0, 0, 0, 0, CIPHER_ORD, i,
- list, head_p, tail_p);
-
- Free(number_uses);
- return(1);
- }
-
-static int ssl_cipher_process_rulestr(const char *rule_str,
- CIPHER_ORDER *list, CIPHER_ORDER **head_p,
- CIPHER_ORDER **tail_p, SSL_CIPHER **ca_list)
- {
- unsigned long algorithms, mask, algo_strength, mask_strength;
- const char *l, *start, *buf;
- int j, multi, found, rule, retval, ok, buflen;
- char ch;
-
- retval = 1;
- l = rule_str;
- for (;;)
- {
- ch = *l;
-
- if (ch == '\0')
- break; /* done */
- if (ch == '-')
- { rule = CIPHER_DEL; l++; }
- else if (ch == '+')
- { rule = CIPHER_ORD; l++; }
- else if (ch == '!')
- { rule = CIPHER_KILL; l++; }
- else if (ch == '@')
- { rule = CIPHER_SPECIAL; l++; }
- else
- { rule = CIPHER_ADD; }
-
- if (ITEM_SEP(ch))
- {
- l++;
- continue;
- }
-
- algorithms = mask = algo_strength = mask_strength = 0;
-
- start=l;
- for (;;)
- {
- ch = *l;
- buf = l;
- buflen = 0;
-#ifndef CHARSET_EBCDIC
- while ( ((ch >= 'A') && (ch <= 'Z')) ||
- ((ch >= '0') && (ch <= '9')) ||
- ((ch >= 'a') && (ch <= 'z')) ||
- (ch == '-'))
-#else
- while ( isalnum(ch) || (ch == '-'))
-#endif
- {
- ch = *(++l);
- buflen++;
- }
-
- if (buflen == 0)
- {
- /*
- * We hit something we cannot deal with,
- * it is no command or separator nor
- * alphanumeric, so we call this an error.
- */
- SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
- SSL_R_INVALID_COMMAND);
- retval = found = 0;
- l++;
- break;
- }
-
- if (rule == CIPHER_SPECIAL)
- {
- found = 0; /* unused -- avoid compiler warning */
- break; /* special treatment */
- }
-
- /* check for multi-part specification */
- if (ch == '+')
- {
- multi=1;
- l++;
- }
- else
- multi=0;
-
- /*
- * Now search for the cipher alias in the ca_list. Be careful
- * with the strncmp, because the "buflen" limitation
- * will make the rule "ADH:SOME" and the cipher
- * "ADH-MY-CIPHER" look like a match for buflen=3.
- * So additionally check whether the cipher name found
- * has the correct length. We can save a strlen() call:
- * just checking for the '\0' at the right place is
- * sufficient, we have to strncmp() anyway.
- */
- j = found = 0;
- while (ca_list[j])
- {
- if ((ca_list[j]->name[buflen] == '\0') &&
- !strncmp(buf, ca_list[j]->name, buflen))
- {
- found = 1;
- break;
- }
- else
- j++;
- }
- if (!found)
- break; /* ignore this entry */
-
- algorithms |= ca_list[j]->algorithms;
- mask |= ca_list[j]->mask;
- algo_strength |= ca_list[j]->algo_strength;
- mask_strength |= ca_list[j]->mask_strength;
-
- if (!multi) break;
- }
-
- /*
- * Ok, we have the rule, now apply it
- */
- if (rule == CIPHER_SPECIAL)
- { /* special command */
- ok = 0;
- if ((buflen == 8) &&
- !strncmp(buf, "STRENGTH", 8))
- ok = ssl_cipher_strength_sort(list,
- head_p, tail_p);
- else
- SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
- SSL_R_INVALID_COMMAND);
- if (ok == 0)
- retval = 0;
- /*
- * We do not support any "multi" options
- * together with "@", so throw away the
- * rest of the command, if any left, until
- * end or ':' is found.
- */
- while ((*l != '\0') && ITEM_SEP(*l))
- l++;
- }
- else if (found)
- {
- ssl_cipher_apply_rule(algorithms, mask,
- algo_strength, mask_strength, rule, -1,
- list, head_p, tail_p);
- }
- else
- {
- while ((*l != '\0') && ITEM_SEP(*l))
- l++;
- }
- if (*l == '\0') break; /* done */
- }
-
- return(retval);
- }
-
-STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
- STACK_OF(SSL_CIPHER) **cipher_list,
- STACK_OF(SSL_CIPHER) **cipher_list_by_id,
- const char *rule_str)
- {
- int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
- unsigned long disabled_mask;
- STACK_OF(SSL_CIPHER) *cipherstack;
- const char *rule_p;
- CIPHER_ORDER *list = NULL, *head = NULL, *tail = NULL, *curr;
- SSL_CIPHER **ca_list = NULL;
-
- /*
- * Return with error if nothing to do.
- */
- if (rule_str == NULL) return(NULL);
-
- if (init_ciphers) load_ciphers();
-
- /*
- * To reduce the work to do we only want to process the compiled
- * in algorithms, so we first get the mask of disabled ciphers.
- */
- disabled_mask = ssl_cipher_get_disabled();
-
- /*
- * Now we have to collect the available ciphers from the compiled
- * in ciphers. We cannot get more than the number compiled in, so
- * it is used for allocation.
- */
- num_of_ciphers = ssl_method->num_ciphers();
- list = (CIPHER_ORDER *)Malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
- if (list == NULL)
- {
- SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
- return(NULL); /* Failure */
- }
-
- ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, disabled_mask,
- list, &head, &tail);
-
- /*
- * We also need cipher aliases for selecting based on the rule_str.
- * There might be two types of entries in the rule_str: 1) names
- * of ciphers themselves 2) aliases for groups of ciphers.
- * For 1) we need the available ciphers and for 2) the cipher
- * groups of cipher_aliases added together in one list (otherwise
- * we would be happy with just the cipher_aliases table).
- */
- num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
- num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
- ca_list =
- (SSL_CIPHER **)Malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
- if (ca_list == NULL)
- {
- Free(list);
- SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
- return(NULL); /* Failure */
- }
- ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, disabled_mask,
- head);
-
- /*
- * If the rule_string begins with DEFAULT, apply the default rule
- * before using the (possibly available) additional rules.
- */
- ok = 1;
- rule_p = rule_str;
- if (strncmp(rule_str,"DEFAULT",7) == 0)
- {
- ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
- list, &head, &tail, ca_list);
- rule_p += 7;
- if (*rule_p == ':')
- rule_p++;
- }
-
- if (ok && (strlen(rule_p) > 0))
- ok = ssl_cipher_process_rulestr(rule_p, list, &head, &tail,
- ca_list);
-
- Free(ca_list); /* Not needed anymore */
-
- if (!ok)
- { /* Rule processing failure */
- Free(list);
- return(NULL);
- }
- /*
- * Allocate new "cipherstack" for the result, return with error
- * if we cannot get one.
- */
- if ((cipherstack = sk_SSL_CIPHER_new(NULL)) == NULL)
- {
- Free(list);
- return(NULL);
- }
-
- /*
- * The cipher selection for the list is done. The ciphers are added
- * to the resulting precedence to the STACK_OF(SSL_CIPHER).
- */
- for (curr = head; curr != NULL; curr = curr->next)
- {
- if (curr->active)
- {
- sk_SSL_CIPHER_push(cipherstack, curr->cipher);
-#ifdef CIPHER_DEBUG
- printf("<%s>\n",curr->cipher->name);
-#endif
- }
- }
- Free(list); /* Not needed any longer */
-
- /*
- * The following passage is a little bit odd. If pointer variables
- * were supplied to hold STACK_OF(SSL_CIPHER) return information,
- * the old memory pointed to is free()ed. Then, however, the
- * cipher_list entry will be assigned just a copy of the returned
- * cipher stack. For cipher_list_by_id a copy of the cipher stack
- * will be created. See next comment...
- */
- if (cipher_list != NULL)
- {
- if (*cipher_list != NULL)
- sk_SSL_CIPHER_free(*cipher_list);
- *cipher_list = cipherstack;
- }
-
- if (cipher_list_by_id != NULL)
- {
- if (*cipher_list_by_id != NULL)
- sk_SSL_CIPHER_free(*cipher_list_by_id);
- *cipher_list_by_id = sk_SSL_CIPHER_dup(cipherstack);
- }
-
- /*
- * Now it is getting really strange. If something failed during
- * the previous pointer assignment or if one of the pointers was
- * not requested, the error condition is met. That might be
- * discussable. The strange thing is however that in this case
- * the memory "ret" pointed to is "free()ed" and hence the pointer
- * cipher_list becomes wild. The memory reserved for
- * cipher_list_by_id however is not "free()ed" and stays intact.
- */
- if ( (cipher_list_by_id == NULL) ||
- (*cipher_list_by_id == NULL) ||
- (cipher_list == NULL) ||
- (*cipher_list == NULL))
- {
- sk_SSL_CIPHER_free(cipherstack);
- return(NULL);
- }
-
- sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
-
- return(cipherstack);
- }
-
-char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
- {
- int is_export,pkl,kl;
- char *ver,*exp;
- char *kx,*au,*enc,*mac;
- unsigned long alg,alg2,alg_s;
- static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
-
- alg=cipher->algorithms;
- alg_s=cipher->algo_strength;
- alg2=cipher->algorithm2;
-
- is_export=SSL_C_IS_EXPORT(cipher);
- pkl=SSL_C_EXPORT_PKEYLENGTH(cipher);
- kl=SSL_C_EXPORT_KEYLENGTH(cipher);
- exp=is_export?" export":"";
-
- if (alg & SSL_SSLV2)
- ver="SSLv2";
- else if (alg & SSL_SSLV3)
- ver="SSLv3";
- else
- ver="unknown";
-
- switch (alg&SSL_MKEY_MASK)
- {
- case SSL_kRSA:
- kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
- break;
- case SSL_kDHr:
- kx="DH/RSA";
- break;
- case SSL_kDHd:
- kx="DH/DSS";
- break;
- case SSL_kFZA:
- kx="Fortezza";
- break;
- case SSL_kEDH:
- kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH";
- break;
- default:
- kx="unknown";
- }
-
- switch (alg&SSL_AUTH_MASK)
- {
- case SSL_aRSA:
- au="RSA";
- break;
- case SSL_aDSS:
- au="DSS";
- break;
- case SSL_aDH:
- au="DH";
- break;
- case SSL_aFZA:
- case SSL_aNULL:
- au="None";
- break;
- default:
- au="unknown";
- break;
- }
-
- switch (alg&SSL_ENC_MASK)
- {
- case SSL_DES:
- enc=(is_export && kl == 5)?"DES(40)":"DES(56)";
- break;
- case SSL_3DES:
- enc="3DES(168)";
- break;
- case SSL_RC4:
- enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)")
- :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)");
- break;
- case SSL_RC2:
- enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)";
- break;
- case SSL_IDEA:
- enc="IDEA(128)";
- break;
- case SSL_eFZA:
- enc="Fortezza";
- break;
- case SSL_eNULL:
- enc="None";
- break;
- default:
- enc="unknown";
- break;
- }
-
- switch (alg&SSL_MAC_MASK)
- {
- case SSL_MD5:
- mac="MD5";
- break;
- case SSL_SHA1:
- mac="SHA1";
- break;
- default:
- mac="unknown";
- break;
- }
-
- if (buf == NULL)
- {
- buf=Malloc(128);
- if (buf == NULL) return("Malloc Error");
- }
- else if (len < 128)
- return("Buffer too small");
-
- sprintf(buf,format,cipher->name,ver,kx,au,enc,mac,exp);
- return(buf);
- }
-
-char *SSL_CIPHER_get_version(SSL_CIPHER *c)
- {
- int i;
-
- if (c == NULL) return("(NONE)");
- i=(int)(c->id>>24L);
- if (i == 3)
- return("TLSv1/SSLv3");
- else if (i == 2)
- return("SSLv2");
- else
- return("unknown");
- }
-
-/* return the actual cipher being used */
-const char *SSL_CIPHER_get_name(SSL_CIPHER *c)
- {
- if (c != NULL)
- return(c->name);
- return("(NONE)");
- }
-
-/* number of bits for symmetric cipher */
-int SSL_CIPHER_get_bits(SSL_CIPHER *c, int *alg_bits)
- {
- int ret=0;
-
- if (c != NULL)
- {
- if (alg_bits != NULL) *alg_bits = c->alg_bits;
- ret = c->strength_bits;
- }
- return(ret);
- }
-
-SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
- {
- SSL_COMP *ctmp;
- int i,nn;
-
- if ((n == 0) || (sk == NULL)) return(NULL);
- nn=sk_SSL_COMP_num(sk);
- for (i=0; i<nn; i++)
- {
- ctmp=sk_SSL_COMP_value(sk,i);
- if (ctmp->id == n)
- return(ctmp);
- }
- return(NULL);
- }
-
-static int sk_comp_cmp(SSL_COMP **a,SSL_COMP **b)
- {
- return((*a)->id-(*b)->id);
- }
-
-STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
- {
- return(ssl_comp_methods);
- }
-
-int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
- {
- SSL_COMP *comp;
- STACK_OF(SSL_COMP) *sk;
-
- comp=(SSL_COMP *)Malloc(sizeof(SSL_COMP));
- comp->id=id;
- comp->method=cm;
- if (ssl_comp_methods == NULL)
- sk=ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp);
- else
- sk=ssl_comp_methods;
- if ((sk == NULL) || !sk_SSL_COMP_push(sk,comp))
- {
- SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE);
- return(0);
- }
- else
- return(1);
- }
-
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