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authormarkus <>2002-09-05 12:51:50 +0000
committermarkus <>2002-09-05 12:51:50 +0000
commit15b5d84f9da2ce4bfae8580e56e34a859f74ad71 (patch)
treebf939e82d7fd73cc8a01cf6959002209972091bc /src/lib/libssl/ssl_ciph.c
parent027351f729b9e837200dae6e1520cda6577ab930 (diff)
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import openssl-0.9.7-beta1
Diffstat (limited to 'src/lib/libssl/ssl_ciph.c')
-rw-r--r--src/lib/libssl/ssl_ciph.c1034
1 files changed, 704 insertions, 330 deletions
diff --git a/src/lib/libssl/ssl_ciph.c b/src/lib/libssl/ssl_ciph.c
index 820994408b..cdd8dde128 100644
--- a/src/lib/libssl/ssl_ciph.c
+++ b/src/lib/libssl/ssl_ciph.c
@@ -57,7 +57,8 @@
57 */ 57 */
58 58
59#include <stdio.h> 59#include <stdio.h>
60#include "objects.h" 60#include <openssl/objects.h>
61#include <openssl/comp.h>
61#include "ssl_locl.h" 62#include "ssl_locl.h"
62 63
63#define SSL_ENC_DES_IDX 0 64#define SSL_ENC_DES_IDX 0
@@ -67,37 +68,28 @@
67#define SSL_ENC_IDEA_IDX 4 68#define SSL_ENC_IDEA_IDX 4
68#define SSL_ENC_eFZA_IDX 5 69#define SSL_ENC_eFZA_IDX 5
69#define SSL_ENC_NULL_IDX 6 70#define SSL_ENC_NULL_IDX 6
70#define SSL_ENC_NUM_IDX 7 71#define SSL_ENC_AES128_IDX 7
72#define SSL_ENC_AES256_IDX 8
73#define SSL_ENC_NUM_IDX 9
71 74
72static EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ 75static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
73 NULL,NULL,NULL,NULL,NULL,NULL, 76 NULL,NULL,NULL,NULL,NULL,NULL,
74 }; 77 };
75 78
79static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL;
80
76#define SSL_MD_MD5_IDX 0 81#define SSL_MD_MD5_IDX 0
77#define SSL_MD_SHA1_IDX 1 82#define SSL_MD_SHA1_IDX 1
78#define SSL_MD_NUM_IDX 2 83#define SSL_MD_NUM_IDX 2
79static EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ 84static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
80 NULL,NULL, 85 NULL,NULL,
81 }; 86 };
82 87
83typedef struct cipher_sort_st
84 {
85 SSL_CIPHER *cipher;
86 int pref;
87 } CIPHER_SORT;
88
89#define CIPHER_ADD 1 88#define CIPHER_ADD 1
90#define CIPHER_KILL 2 89#define CIPHER_KILL 2
91#define CIPHER_DEL 3 90#define CIPHER_DEL 3
92#define CIPHER_ORD 4 91#define CIPHER_ORD 4
93 92#define CIPHER_SPECIAL 5
94typedef struct cipher_choice_st
95 {
96 int type;
97 unsigned long algorithms;
98 unsigned long mask;
99 long top;
100 } CIPHER_CHOICE;
101 93
102typedef struct cipher_order_st 94typedef struct cipher_order_st
103 { 95 {
@@ -107,59 +99,62 @@ typedef struct cipher_order_st
107 struct cipher_order_st *next,*prev; 99 struct cipher_order_st *next,*prev;
108 } CIPHER_ORDER; 100 } CIPHER_ORDER;
109 101
110static SSL_CIPHER cipher_aliases[]={ 102static const SSL_CIPHER cipher_aliases[]={
111 {0,SSL_TXT_ALL, 0,SSL_ALL, 0,SSL_ALL}, /* must be first */ 103 /* Don't include eNULL unless specifically enabled.
112 {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,SSL_MKEY_MASK}, 104 * Similarly, don't include AES in ALL because these ciphers are not yet official. */
113 {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,SSL_MKEY_MASK}, 105 {0,SSL_TXT_ALL, 0,SSL_ALL & ~SSL_eNULL & ~SSL_AES, SSL_ALL ,0,0,0,SSL_ALL,SSL_ALL}, /* must be first */
114 {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,SSL_MKEY_MASK}, 106 {0,SSL_TXT_kKRB5,0,SSL_kKRB5,0,0,0,0,SSL_MKEY_MASK,0}, /* VRS Kerberos5 */
115 {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,SSL_MKEY_MASK}, 107 {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,0,0,0,SSL_MKEY_MASK,0},
116 {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,SSL_MKEY_MASK}, 108 {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,0,0,0,SSL_MKEY_MASK,0},
117 {0,SSL_TXT_DH, 0,SSL_DH, 0,SSL_MKEY_MASK}, 109 {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,0,0,0,SSL_MKEY_MASK,0},
118 {0,SSL_TXT_EDH, 0,SSL_EDH, 0,SSL_MKEY_MASK|SSL_AUTH_MASK}, 110 {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,0,0,0,SSL_MKEY_MASK,0},
119 111 {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,0,0,0,SSL_MKEY_MASK,0},
120 {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,SSL_AUTH_MASK}, 112 {0,SSL_TXT_DH, 0,SSL_DH, 0,0,0,0,SSL_MKEY_MASK,0},
121 {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,SSL_AUTH_MASK}, 113 {0,SSL_TXT_EDH, 0,SSL_EDH, 0,0,0,0,SSL_MKEY_MASK|SSL_AUTH_MASK,0},
122 {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,SSL_AUTH_MASK}, 114
123 {0,SSL_TXT_aNULL,0,SSL_aNULL,0,SSL_AUTH_MASK}, 115 {0,SSL_TXT_aKRB5,0,SSL_aKRB5,0,0,0,0,SSL_AUTH_MASK,0}, /* VRS Kerberos5 */
124 {0,SSL_TXT_aDH, 0,SSL_aDH, 0,SSL_AUTH_MASK}, 116 {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,0,0,0,SSL_AUTH_MASK,0},
125 {0,SSL_TXT_DSS, 0,SSL_DSS, 0,SSL_AUTH_MASK}, 117 {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,0,0,0,SSL_AUTH_MASK,0},
126 118 {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,0,0,0,SSL_AUTH_MASK,0},
127 {0,SSL_TXT_DES, 0,SSL_DES, 0,SSL_ENC_MASK}, 119 {0,SSL_TXT_aNULL,0,SSL_aNULL,0,0,0,0,SSL_AUTH_MASK,0},
128 {0,SSL_TXT_3DES,0,SSL_3DES, 0,SSL_ENC_MASK}, 120 {0,SSL_TXT_aDH, 0,SSL_aDH, 0,0,0,0,SSL_AUTH_MASK,0},
129 {0,SSL_TXT_RC4, 0,SSL_RC4, 0,SSL_ENC_MASK}, 121 {0,SSL_TXT_DSS, 0,SSL_DSS, 0,0,0,0,SSL_AUTH_MASK,0},
130 {0,SSL_TXT_RC2, 0,SSL_RC2, 0,SSL_ENC_MASK}, 122
131 {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,SSL_ENC_MASK}, 123 {0,SSL_TXT_DES, 0,SSL_DES, 0,0,0,0,SSL_ENC_MASK,0},
132 {0,SSL_TXT_eNULL,0,SSL_eNULL,0,SSL_ENC_MASK}, 124 {0,SSL_TXT_3DES,0,SSL_3DES, 0,0,0,0,SSL_ENC_MASK,0},
133 {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,SSL_ENC_MASK}, 125 {0,SSL_TXT_RC4, 0,SSL_RC4, 0,0,0,0,SSL_ENC_MASK,0},
134 126 {0,SSL_TXT_RC2, 0,SSL_RC2, 0,0,0,0,SSL_ENC_MASK,0},
135 {0,SSL_TXT_MD5, 0,SSL_MD5, 0,SSL_MAC_MASK}, 127 {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,0,0,0,SSL_ENC_MASK,0},
136 {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,SSL_MAC_MASK}, 128 {0,SSL_TXT_eNULL,0,SSL_eNULL,0,0,0,0,SSL_ENC_MASK,0},
137 {0,SSL_TXT_SHA, 0,SSL_SHA, 0,SSL_MAC_MASK}, 129 {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,0,0,0,SSL_ENC_MASK,0},
138 130 {0,SSL_TXT_AES, 0,SSL_AES, 0,0,0,0,SSL_ENC_MASK,0},
139 {0,SSL_TXT_NULL,0,SSL_NULL, 0,SSL_ENC_MASK}, 131
140 {0,SSL_TXT_RSA, 0,SSL_RSA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK}, 132 {0,SSL_TXT_MD5, 0,SSL_MD5, 0,0,0,0,SSL_MAC_MASK,0},
141 {0,SSL_TXT_ADH, 0,SSL_ADH, 0,SSL_AUTH_MASK|SSL_MKEY_MASK}, 133 {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,0,0,0,SSL_MAC_MASK,0},
142 {0,SSL_TXT_FZA, 0,SSL_FZA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK}, 134 {0,SSL_TXT_SHA, 0,SSL_SHA, 0,0,0,0,SSL_MAC_MASK,0},
143 135
144 {0,SSL_TXT_EXP, 0,SSL_EXP, 0,SSL_EXP_MASK}, 136 {0,SSL_TXT_NULL,0,SSL_NULL, 0,0,0,0,SSL_ENC_MASK,0},
145 {0,SSL_TXT_EXPORT,0,SSL_EXPORT,0,SSL_EXP_MASK}, 137 {0,SSL_TXT_KRB5,0,SSL_KRB5, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
146 {0,SSL_TXT_SSLV2,0,SSL_SSLV2,0,SSL_SSL_MASK}, 138 {0,SSL_TXT_RSA, 0,SSL_RSA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
147 {0,SSL_TXT_SSLV3,0,SSL_SSLV3,0,SSL_SSL_MASK}, 139 {0,SSL_TXT_ADH, 0,SSL_ADH, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
148 {0,SSL_TXT_LOW, 0,SSL_LOW,0,SSL_STRONG_MASK}, 140 {0,SSL_TXT_FZA, 0,SSL_FZA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK,0},
149 {0,SSL_TXT_MEDIUM,0,SSL_MEDIUM,0,SSL_STRONG_MASK}, 141
150 {0,SSL_TXT_HIGH, 0,SSL_HIGH,0,SSL_STRONG_MASK}, 142 {0,SSL_TXT_SSLV2, 0,SSL_SSLV2, 0,0,0,0,SSL_SSL_MASK,0},
143 {0,SSL_TXT_SSLV3, 0,SSL_SSLV3, 0,0,0,0,SSL_SSL_MASK,0},
144 {0,SSL_TXT_TLSV1, 0,SSL_TLSV1, 0,0,0,0,SSL_SSL_MASK,0},
145
146 {0,SSL_TXT_EXP ,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK},
147 {0,SSL_TXT_EXPORT,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK},
148 {0,SSL_TXT_EXP40, 0, 0, SSL_EXP40, 0,0,0,0,SSL_STRONG_MASK},
149 {0,SSL_TXT_EXP56, 0, 0, SSL_EXP56, 0,0,0,0,SSL_STRONG_MASK},
150 {0,SSL_TXT_LOW, 0, 0, SSL_LOW, 0,0,0,0,SSL_STRONG_MASK},
151 {0,SSL_TXT_MEDIUM,0, 0,SSL_MEDIUM, 0,0,0,0,SSL_STRONG_MASK},
152 {0,SSL_TXT_HIGH, 0, 0, SSL_HIGH, 0,0,0,0,SSL_STRONG_MASK},
151 }; 153 };
152 154
153static int init_ciphers=1; 155static int init_ciphers=1;
154static void load_ciphers();
155
156static int cmp_by_name(a,b)
157SSL_CIPHER **a,**b;
158 {
159 return(strcmp((*a)->name,(*b)->name));
160 }
161 156
162static void load_ciphers() 157static void load_ciphers(void)
163 { 158 {
164 init_ciphers=0; 159 init_ciphers=0;
165 ssl_cipher_methods[SSL_ENC_DES_IDX]= 160 ssl_cipher_methods[SSL_ENC_DES_IDX]=
@@ -172,6 +167,10 @@ static void load_ciphers()
172 EVP_get_cipherbyname(SN_rc2_cbc); 167 EVP_get_cipherbyname(SN_rc2_cbc);
173 ssl_cipher_methods[SSL_ENC_IDEA_IDX]= 168 ssl_cipher_methods[SSL_ENC_IDEA_IDX]=
174 EVP_get_cipherbyname(SN_idea_cbc); 169 EVP_get_cipherbyname(SN_idea_cbc);
170 ssl_cipher_methods[SSL_ENC_AES128_IDX]=
171 EVP_get_cipherbyname(SN_aes_128_cbc);
172 ssl_cipher_methods[SSL_ENC_AES256_IDX]=
173 EVP_get_cipherbyname(SN_aes_256_cbc);
175 174
176 ssl_digest_methods[SSL_MD_MD5_IDX]= 175 ssl_digest_methods[SSL_MD_MD5_IDX]=
177 EVP_get_digestbyname(SN_md5); 176 EVP_get_digestbyname(SN_md5);
@@ -179,14 +178,38 @@ static void load_ciphers()
179 EVP_get_digestbyname(SN_sha1); 178 EVP_get_digestbyname(SN_sha1);
180 } 179 }
181 180
182int ssl_cipher_get_evp(c,enc,md) 181int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc,
183SSL_CIPHER *c; 182 const EVP_MD **md, SSL_COMP **comp)
184EVP_CIPHER **enc;
185EVP_MD **md;
186 { 183 {
187 int i; 184 int i;
185 SSL_CIPHER *c;
188 186
187 c=s->cipher;
189 if (c == NULL) return(0); 188 if (c == NULL) return(0);
189 if (comp != NULL)
190 {
191 SSL_COMP ctmp;
192
193 if (s->compress_meth == 0)
194 *comp=NULL;
195 else if (ssl_comp_methods == NULL)
196 {
197 /* bad */
198 *comp=NULL;
199 }
200 else
201 {
202
203 ctmp.id=s->compress_meth;
204 i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp);
205 if (i >= 0)
206 *comp=sk_SSL_COMP_value(ssl_comp_methods,i);
207 else
208 *comp=NULL;
209 }
210 }
211
212 if ((enc == NULL) || (md == NULL)) return(0);
190 213
191 switch (c->algorithms & SSL_ENC_MASK) 214 switch (c->algorithms & SSL_ENC_MASK)
192 { 215 {
@@ -208,6 +231,13 @@ EVP_MD **md;
208 case SSL_eNULL: 231 case SSL_eNULL:
209 i=SSL_ENC_NULL_IDX; 232 i=SSL_ENC_NULL_IDX;
210 break; 233 break;
234 case SSL_AES:
235 switch(c->alg_bits)
236 {
237 case 128: i=SSL_ENC_AES128_IDX; break;
238 case 256: i=SSL_ENC_AES256_IDX; break;
239 default: i=-1; break;
240 }
211 break; 241 break;
212 default: 242 default:
213 i= -1; 243 i= -1;
@@ -250,8 +280,8 @@ EVP_MD **md;
250#define ITEM_SEP(a) \ 280#define ITEM_SEP(a) \
251 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) 281 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
252 282
253static void ll_append_tail(head,curr,tail) 283static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
254CIPHER_ORDER **head,*curr,**tail; 284 CIPHER_ORDER **tail)
255 { 285 {
256 if (curr == *tail) return; 286 if (curr == *tail) return;
257 if (curr == *head) 287 if (curr == *head)
@@ -266,181 +296,359 @@ CIPHER_ORDER **head,*curr,**tail;
266 *tail=curr; 296 *tail=curr;
267 } 297 }
268 298
269STACK *ssl_create_cipher_list(ssl_method,cipher_list,cipher_list_by_id,str) 299static unsigned long ssl_cipher_get_disabled(void)
270SSL_METHOD *ssl_method;
271STACK **cipher_list,**cipher_list_by_id;
272char *str;
273 { 300 {
274 SSL_CIPHER *c; 301 unsigned long mask;
275 char *l;
276 STACK *ret=NULL,*ok=NULL;
277#define CL_BUF 40
278 char buf[CL_BUF];
279 char *tmp_str=NULL;
280 unsigned long mask,algorithms,ma;
281 char *start;
282 int i,j,k,num=0,ch,multi;
283 unsigned long al;
284 STACK *ca_list=NULL;
285 int current_x,num_x;
286 CIPHER_CHOICE *ops=NULL;
287 CIPHER_ORDER *list=NULL,*head=NULL,*tail=NULL,*curr,*tail2,*curr2;
288 int list_num;
289 int type;
290 SSL_CIPHER c_tmp,*cp;
291
292 if (str == NULL) return(NULL);
293
294 if (strncmp(str,"DEFAULT",7) == 0)
295 {
296 i=strlen(str)+2+strlen(SSL_DEFAULT_CIPHER_LIST);
297 if ((tmp_str=Malloc(i)) == NULL)
298 {
299 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
300 goto err;
301 }
302 strcpy(tmp_str,SSL_DEFAULT_CIPHER_LIST);
303 strcat(tmp_str,":");
304 strcat(tmp_str,&(str[7]));
305 str=tmp_str;
306 }
307 if (init_ciphers) load_ciphers();
308
309 num=ssl_method->num_ciphers();
310
311 if ((ret=(STACK *)sk_new(NULL)) == NULL) goto err;
312 if ((ca_list=(STACK *)sk_new(cmp_by_name)) == NULL) goto err;
313 302
314 mask =SSL_kFZA; 303 mask = SSL_kFZA;
315#ifdef NO_RSA 304#ifdef OPENSSL_NO_RSA
316 mask|=SSL_aRSA|SSL_kRSA; 305 mask |= SSL_aRSA|SSL_kRSA;
317#endif 306#endif
318#ifdef NO_DSA 307#ifdef OPENSSL_NO_DSA
319 mask|=SSL_aDSS; 308 mask |= SSL_aDSS;
320#endif 309#endif
321#ifdef NO_DH 310#ifdef OPENSSL_NO_DH
322 mask|=SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH; 311 mask |= SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH;
312#endif
313#ifdef OPENSSL_NO_KRB5
314 mask |= SSL_kKRB5|SSL_aKRB5;
323#endif 315#endif
324 316
325#ifndef SSL_ALLOW_ENULL 317#ifdef SSL_FORBID_ENULL
326 mask|=SSL_eNULL; 318 mask |= SSL_eNULL;
327#endif 319#endif
328 320
329 mask|=(ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL)?SSL_DES :0; 321 mask |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0;
330 mask|=(ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL)?SSL_3DES:0; 322 mask |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0;
331 mask|=(ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL)?SSL_RC4 :0; 323 mask |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0;
332 mask|=(ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL)?SSL_RC2 :0; 324 mask |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0;
333 mask|=(ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL)?SSL_IDEA:0; 325 mask |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0;
334 mask|=(ssl_cipher_methods[SSL_ENC_eFZA_IDX] == NULL)?SSL_eFZA:0; 326 mask |= (ssl_cipher_methods[SSL_ENC_eFZA_IDX] == NULL) ? SSL_eFZA:0;
327 mask |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES:0;
335 328
336 mask|=(ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL)?SSL_MD5 :0; 329 mask |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
337 mask|=(ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL)?SSL_SHA1:0; 330 mask |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
338 331
339 if ((list=(CIPHER_ORDER *)Malloc(sizeof(CIPHER_ORDER)*num)) == NULL) 332 return(mask);
340 goto err; 333 }
334
335static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
336 int num_of_ciphers, unsigned long mask, CIPHER_ORDER *list,
337 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
338 {
339 int i, list_num;
340 SSL_CIPHER *c;
341
342 /*
343 * We have num_of_ciphers descriptions compiled in, depending on the
344 * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
345 * These will later be sorted in a linked list with at most num
346 * entries.
347 */
341 348
342 /* Get the initial list of ciphers */ 349 /* Get the initial list of ciphers */
343 list_num=0; 350 list_num = 0; /* actual count of ciphers */
344 for (i=0; i<num; i++) 351 for (i = 0; i < num_of_ciphers; i++)
345 { 352 {
346 c=ssl_method->get_cipher((unsigned int)i); 353 c = ssl_method->get_cipher(i);
347 /* drop those that use any of that is not available */ 354 /* drop those that use any of that is not available */
348 if ((c != NULL) && c->valid && !(c->algorithms & mask)) 355 if ((c != NULL) && c->valid && !(c->algorithms & mask))
349 { 356 {
350 list[list_num].cipher=c; 357 list[list_num].cipher = c;
351 list[list_num].next=NULL; 358 list[list_num].next = NULL;
352 list[list_num].prev=NULL; 359 list[list_num].prev = NULL;
353 list[list_num].active=0; 360 list[list_num].active = 0;
354 list_num++; 361 list_num++;
362#ifdef KSSL_DEBUG
363 printf("\t%d: %s %lx %lx\n",i,c->name,c->id,c->algorithms);
364#endif /* KSSL_DEBUG */
365 /*
355 if (!sk_push(ca_list,(char *)c)) goto err; 366 if (!sk_push(ca_list,(char *)c)) goto err;
367 */
356 } 368 }
357 } 369 }
358 370
359 for (i=1; i<list_num-1; i++) 371 /*
372 * Prepare linked list from list entries
373 */
374 for (i = 1; i < list_num - 1; i++)
360 { 375 {
361 list[i].prev= &(list[i-1]); 376 list[i].prev = &(list[i-1]);
362 list[i].next= &(list[i+1]); 377 list[i].next = &(list[i+1]);
363 } 378 }
364 if (list_num > 0) 379 if (list_num > 0)
365 { 380 {
366 head= &(list[0]); 381 (*head_p) = &(list[0]);
367 head->prev=NULL; 382 (*head_p)->prev = NULL;
368 head->next= &(list[1]); 383 (*head_p)->next = &(list[1]);
369 tail= &(list[list_num-1]); 384 (*tail_p) = &(list[list_num - 1]);
370 tail->prev= &(list[list_num-2]); 385 (*tail_p)->prev = &(list[list_num - 2]);
371 tail->next=NULL; 386 (*tail_p)->next = NULL;
372 } 387 }
388 }
373 389
374 /* special case */ 390static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list,
375 cipher_aliases[0].algorithms= ~mask; 391 int num_of_group_aliases, unsigned long mask,
392 CIPHER_ORDER *head)
393 {
394 CIPHER_ORDER *ciph_curr;
395 SSL_CIPHER **ca_curr;
396 int i;
376 397
377 /* get the aliases */ 398 /*
378 k=sizeof(cipher_aliases)/sizeof(SSL_CIPHER); 399 * First, add the real ciphers as already collected
379 for (j=0; j<k; j++) 400 */
401 ciph_curr = head;
402 ca_curr = ca_list;
403 while (ciph_curr != NULL)
380 { 404 {
381 al=cipher_aliases[j].algorithms; 405 *ca_curr = ciph_curr->cipher;
382 /* Drop those that are not relevent */ 406 ca_curr++;
383 if ((al & mask) == al) continue; 407 ciph_curr = ciph_curr->next;
384 if (!sk_push(ca_list,(char *)&(cipher_aliases[j]))) goto err;
385 } 408 }
386 409
387 /* ca_list now holds a 'stack' of SSL_CIPHERS, some real, some 410 /*
388 * 'aliases' */ 411 * Now we add the available ones from the cipher_aliases[] table.
412 * They represent either an algorithm, that must be fully
413 * supported (not match any bit in mask) or represent a cipher
414 * strength value (will be added in any case because algorithms=0).
415 */
416 for (i = 0; i < num_of_group_aliases; i++)
417 {
418 if ((i == 0) || /* always fetch "ALL" */
419 !(cipher_aliases[i].algorithms & mask))
420 {
421 *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
422 ca_curr++;
423 }
424 }
389 425
390 /* how many parameters are there? */ 426 *ca_curr = NULL; /* end of list */
391 num=1; 427 }
392 for (l=str; *l; l++) 428
393 if (ITEM_SEP(*l)) 429static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask,
394 num++; 430 unsigned long algo_strength, unsigned long mask_strength,
395 ops=(CIPHER_CHOICE *)Malloc(sizeof(CIPHER_CHOICE)*num); 431 int rule, int strength_bits, CIPHER_ORDER *list,
396 if (ops == NULL) goto err; 432 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
397 memset(ops,0,sizeof(CIPHER_CHOICE)*num); 433 {
434 CIPHER_ORDER *head, *tail, *curr, *curr2, *tail2;
435 SSL_CIPHER *cp;
436 unsigned long ma, ma_s;
398 437
399 /* we now parse the input string and create our operations */ 438#ifdef CIPHER_DEBUG
400 l=str; 439 printf("Applying rule %d with %08lx %08lx %08lx %08lx (%d)\n",
401 i=0; 440 rule, algorithms, mask, algo_strength, mask_strength,
402 current_x=0; 441 strength_bits);
442#endif
403 443
444 curr = head = *head_p;
445 curr2 = head;
446 tail2 = tail = *tail_p;
404 for (;;) 447 for (;;)
405 { 448 {
406 ch= *l; 449 if ((curr == NULL) || (curr == tail2)) break;
450 curr = curr2;
451 curr2 = curr->next;
452
453 cp = curr->cipher;
454
455 /*
456 * Selection criteria is either the number of strength_bits
457 * or the algorithm used.
458 */
459 if (strength_bits == -1)
460 {
461 ma = mask & cp->algorithms;
462 ma_s = mask_strength & cp->algo_strength;
463
464#ifdef CIPHER_DEBUG
465 printf("\nName: %s:\nAlgo = %08lx Algo_strength = %08lx\nMask = %08lx Mask_strength %08lx\n", cp->name, cp->algorithms, cp->algo_strength, mask, mask_strength);
466 printf("ma = %08lx ma_s %08lx, ma&algo=%08lx, ma_s&algos=%08lx\n", ma, ma_s, ma&algorithms, ma_s&algo_strength);
467#endif
468 /*
469 * Select: if none of the mask bit was met from the
470 * cipher or not all of the bits were met, the
471 * selection does not apply.
472 */
473 if (((ma == 0) && (ma_s == 0)) ||
474 ((ma & algorithms) != ma) ||
475 ((ma_s & algo_strength) != ma_s))
476 continue; /* does not apply */
477 }
478 else if (strength_bits != cp->strength_bits)
479 continue; /* does not apply */
480
481#ifdef CIPHER_DEBUG
482 printf("Action = %d\n", rule);
483#endif
484
485 /* add the cipher if it has not been added yet. */
486 if (rule == CIPHER_ADD)
487 {
488 if (!curr->active)
489 {
490 ll_append_tail(&head, curr, &tail);
491 curr->active = 1;
492 }
493 }
494 /* Move the added cipher to this location */
495 else if (rule == CIPHER_ORD)
496 {
497 if (curr->active)
498 {
499 ll_append_tail(&head, curr, &tail);
500 }
501 }
502 else if (rule == CIPHER_DEL)
503 curr->active = 0;
504 else if (rule == CIPHER_KILL)
505 {
506 if (head == curr)
507 head = curr->next;
508 else
509 curr->prev->next = curr->next;
510 if (tail == curr)
511 tail = curr->prev;
512 curr->active = 0;
513 if (curr->next != NULL)
514 curr->next->prev = curr->prev;
515 if (curr->prev != NULL)
516 curr->prev->next = curr->next;
517 curr->next = NULL;
518 curr->prev = NULL;
519 }
520 }
521
522 *head_p = head;
523 *tail_p = tail;
524 }
525
526static int ssl_cipher_strength_sort(CIPHER_ORDER *list, CIPHER_ORDER **head_p,
527 CIPHER_ORDER **tail_p)
528 {
529 int max_strength_bits, i, *number_uses;
530 CIPHER_ORDER *curr;
531
532 /*
533 * This routine sorts the ciphers with descending strength. The sorting
534 * must keep the pre-sorted sequence, so we apply the normal sorting
535 * routine as '+' movement to the end of the list.
536 */
537 max_strength_bits = 0;
538 curr = *head_p;
539 while (curr != NULL)
540 {
541 if (curr->active &&
542 (curr->cipher->strength_bits > max_strength_bits))
543 max_strength_bits = curr->cipher->strength_bits;
544 curr = curr->next;
545 }
407 546
408 if (ch == '\0') break; 547 number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int));
548 if (!number_uses)
549 {
550 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE);
551 return(0);
552 }
553 memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int));
554
555 /*
556 * Now find the strength_bits values actually used
557 */
558 curr = *head_p;
559 while (curr != NULL)
560 {
561 if (curr->active)
562 number_uses[curr->cipher->strength_bits]++;
563 curr = curr->next;
564 }
565 /*
566 * Go through the list of used strength_bits values in descending
567 * order.
568 */
569 for (i = max_strength_bits; i >= 0; i--)
570 if (number_uses[i] > 0)
571 ssl_cipher_apply_rule(0, 0, 0, 0, CIPHER_ORD, i,
572 list, head_p, tail_p);
573
574 OPENSSL_free(number_uses);
575 return(1);
576 }
577
578static int ssl_cipher_process_rulestr(const char *rule_str,
579 CIPHER_ORDER *list, CIPHER_ORDER **head_p,
580 CIPHER_ORDER **tail_p, SSL_CIPHER **ca_list)
581 {
582 unsigned long algorithms, mask, algo_strength, mask_strength;
583 const char *l, *start, *buf;
584 int j, multi, found, rule, retval, ok, buflen;
585 char ch;
586
587 retval = 1;
588 l = rule_str;
589 for (;;)
590 {
591 ch = *l;
409 592
593 if (ch == '\0')
594 break; /* done */
410 if (ch == '-') 595 if (ch == '-')
411 { j=CIPHER_DEL; l++; } 596 { rule = CIPHER_DEL; l++; }
412 else if (ch == '+') 597 else if (ch == '+')
413 { j=CIPHER_ORD; l++; } 598 { rule = CIPHER_ORD; l++; }
414 else if (ch == '!') 599 else if (ch == '!')
415 { j=CIPHER_KILL; l++; } 600 { rule = CIPHER_KILL; l++; }
416 else 601 else if (ch == '@')
417 { j=CIPHER_ADD; } 602 { rule = CIPHER_SPECIAL; l++; }
603 else
604 { rule = CIPHER_ADD; }
418 605
419 if (ITEM_SEP(ch)) 606 if (ITEM_SEP(ch))
420 { 607 {
421 l++; 608 l++;
422 continue; 609 continue;
423 } 610 }
424 ops[current_x].type=j; 611
425 ops[current_x].algorithms=0; 612 algorithms = mask = algo_strength = mask_strength = 0;
426 ops[current_x].mask=0;
427 613
428 start=l; 614 start=l;
429 for (;;) 615 for (;;)
430 { 616 {
431 ch= *l; 617 ch = *l;
432 i=0; 618 buf = l;
619 buflen = 0;
620#ifndef CHARSET_EBCDIC
433 while ( ((ch >= 'A') && (ch <= 'Z')) || 621 while ( ((ch >= 'A') && (ch <= 'Z')) ||
434 ((ch >= '0') && (ch <= '9')) || 622 ((ch >= '0') && (ch <= '9')) ||
435 ((ch >= 'a') && (ch <= 'z')) || 623 ((ch >= 'a') && (ch <= 'z')) ||
436 (ch == '-')) 624 (ch == '-'))
625#else
626 while ( isalnum(ch) || (ch == '-'))
627#endif
437 { 628 {
438 buf[i]=ch; 629 ch = *(++l);
439 ch= *(++l); 630 buflen++;
440 i++;
441 if (i >= (CL_BUF-2)) break;
442 } 631 }
443 buf[i]='\0'; 632
633 if (buflen == 0)
634 {
635 /*
636 * We hit something we cannot deal with,
637 * it is no command or separator nor
638 * alphanumeric, so we call this an error.
639 */
640 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
641 SSL_R_INVALID_COMMAND);
642 retval = found = 0;
643 l++;
644 break;
645 }
646
647 if (rule == CIPHER_SPECIAL)
648 {
649 found = 0; /* unused -- avoid compiler warning */
650 break; /* special treatment */
651 }
444 652
445 /* check for multi-part specification */ 653 /* check for multi-part specification */
446 if (ch == '+') 654 if (ch == '+')
@@ -451,151 +659,262 @@ char *str;
451 else 659 else
452 multi=0; 660 multi=0;
453 661
454 c_tmp.name=buf; 662 /*
455 j=sk_find(ca_list,(char *)&c_tmp); 663 * Now search for the cipher alias in the ca_list. Be careful
456 if (j < 0) 664 * with the strncmp, because the "buflen" limitation
457 goto end_loop; 665 * will make the rule "ADH:SOME" and the cipher
666 * "ADH-MY-CIPHER" look like a match for buflen=3.
667 * So additionally check whether the cipher name found
668 * has the correct length. We can save a strlen() call:
669 * just checking for the '\0' at the right place is
670 * sufficient, we have to strncmp() anyway.
671 */
672 j = found = 0;
673 while (ca_list[j])
674 {
675 if ((ca_list[j]->name[buflen] == '\0') &&
676 !strncmp(buf, ca_list[j]->name, buflen))
677 {
678 found = 1;
679 break;
680 }
681 else
682 j++;
683 }
684 if (!found)
685 break; /* ignore this entry */
686
687 algorithms |= ca_list[j]->algorithms;
688 mask |= ca_list[j]->mask;
689 algo_strength |= ca_list[j]->algo_strength;
690 mask_strength |= ca_list[j]->mask_strength;
458 691
459 cp=(SSL_CIPHER *)sk_value(ca_list,j);
460 ops[current_x].algorithms|=cp->algorithms;
461 /* We add the SSL_SSL_MASK so we can match the
462 * SSLv2 and SSLv3 versions of RC4-MD5 */
463 ops[current_x].mask|=cp->mask;
464 if (!multi) break; 692 if (!multi) break;
465 } 693 }
466 current_x++; 694
467 if (ch == '\0') break; 695 /*
468end_loop: 696 * Ok, we have the rule, now apply it
469 /* Make sure we scan until the next valid start point */ 697 */
470 while ((*l != '\0') && ITEM_SEP(*l)) 698 if (rule == CIPHER_SPECIAL)
471 l++; 699 { /* special command */
700 ok = 0;
701 if ((buflen == 8) &&
702 !strncmp(buf, "STRENGTH", 8))
703 ok = ssl_cipher_strength_sort(list,
704 head_p, tail_p);
705 else
706 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
707 SSL_R_INVALID_COMMAND);
708 if (ok == 0)
709 retval = 0;
710 /*
711 * We do not support any "multi" options
712 * together with "@", so throw away the
713 * rest of the command, if any left, until
714 * end or ':' is found.
715 */
716 while ((*l != '\0') && ITEM_SEP(*l))
717 l++;
718 }
719 else if (found)
720 {
721 ssl_cipher_apply_rule(algorithms, mask,
722 algo_strength, mask_strength, rule, -1,
723 list, head_p, tail_p);
724 }
725 else
726 {
727 while ((*l != '\0') && ITEM_SEP(*l))
728 l++;
729 }
730 if (*l == '\0') break; /* done */
472 } 731 }
473 732
474 num_x=current_x; 733 return(retval);
475 current_x=0; 734 }
735
736STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
737 STACK_OF(SSL_CIPHER) **cipher_list,
738 STACK_OF(SSL_CIPHER) **cipher_list_by_id,
739 const char *rule_str)
740 {
741 int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
742 unsigned long disabled_mask;
743 STACK_OF(SSL_CIPHER) *cipherstack;
744 const char *rule_p;
745 CIPHER_ORDER *list = NULL, *head = NULL, *tail = NULL, *curr;
746 SSL_CIPHER **ca_list = NULL;
747
748 /*
749 * Return with error if nothing to do.
750 */
751 if (rule_str == NULL) return(NULL);
752
753 if (init_ciphers) load_ciphers();
476 754
477 /* We will now process the list of ciphers, once for each category, to 755 /*
478 * decide what we should do with it. */ 756 * To reduce the work to do we only want to process the compiled
479 for (j=0; j<num_x; j++) 757 * in algorithms, so we first get the mask of disabled ciphers.
758 */
759 disabled_mask = ssl_cipher_get_disabled();
760
761 /*
762 * Now we have to collect the available ciphers from the compiled
763 * in ciphers. We cannot get more than the number compiled in, so
764 * it is used for allocation.
765 */
766 num_of_ciphers = ssl_method->num_ciphers();
767#ifdef KSSL_DEBUG
768 printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers);
769#endif /* KSSL_DEBUG */
770 list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
771 if (list == NULL)
480 { 772 {
481 algorithms=ops[j].algorithms; 773 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
482 type=ops[j].type; 774 return(NULL); /* Failure */
483 mask=ops[j].mask; 775 }
484 776
485 curr=head; 777 ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, disabled_mask,
486 curr2=head; 778 list, &head, &tail);
487 tail2=tail; 779
488 for (;;) 780 /*
489 { 781 * We also need cipher aliases for selecting based on the rule_str.
490 if ((curr == NULL) || (curr == tail2)) break; 782 * There might be two types of entries in the rule_str: 1) names
491 curr=curr2; 783 * of ciphers themselves 2) aliases for groups of ciphers.
492 curr2=curr->next; 784 * For 1) we need the available ciphers and for 2) the cipher
785 * groups of cipher_aliases added together in one list (otherwise
786 * we would be happy with just the cipher_aliases table).
787 */
788 num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
789 num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
790 ca_list =
791 (SSL_CIPHER **)OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
792 if (ca_list == NULL)
793 {
794 OPENSSL_free(list);
795 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
796 return(NULL); /* Failure */
797 }
798 ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, disabled_mask,
799 head);
800
801 /*
802 * If the rule_string begins with DEFAULT, apply the default rule
803 * before using the (possibly available) additional rules.
804 */
805 ok = 1;
806 rule_p = rule_str;
807 if (strncmp(rule_str,"DEFAULT",7) == 0)
808 {
809 ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
810 list, &head, &tail, ca_list);
811 rule_p += 7;
812 if (*rule_p == ':')
813 rule_p++;
814 }
493 815
494 cp=curr->cipher; 816 if (ok && (strlen(rule_p) > 0))
495 ma=mask & cp->algorithms; 817 ok = ssl_cipher_process_rulestr(rule_p, list, &head, &tail,
496 if ((ma == 0) || ((ma & algorithms) != ma)) 818 ca_list);
497 {
498 /* does not apply */
499 continue;
500 }
501 819
502 /* add the cipher if it has not been added yet. */ 820 OPENSSL_free(ca_list); /* Not needed anymore */
503 if (type == CIPHER_ADD) 821
504 { 822 if (!ok)
505 if (!curr->active) 823 { /* Rule processing failure */
506 { 824 OPENSSL_free(list);
507 ll_append_tail(&head,curr,&tail); 825 return(NULL);
508 curr->active=1; 826 }
509 } 827 /*
510 } 828 * Allocate new "cipherstack" for the result, return with error
511 /* Move the added cipher to this location */ 829 * if we cannot get one.
512 else if (type == CIPHER_ORD) 830 */
513 { 831 if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL)
514 if (curr->active) 832 {
515 { 833 OPENSSL_free(list);
516 ll_append_tail(&head,curr,&tail); 834 return(NULL);
517 }
518 }
519 else if (type == CIPHER_DEL)
520 curr->active=0;
521 if (type == CIPHER_KILL)
522 {
523 if (head == curr)
524 head=curr->next;
525 else
526 curr->prev->next=curr->next;
527 if (tail == curr)
528 tail=curr->prev;
529 curr->active=0;
530 if (curr->next != NULL)
531 curr->next->prev=curr->prev;
532 if (curr->prev != NULL)
533 curr->prev->next=curr->next;
534 curr->next=NULL;
535 curr->prev=NULL;
536 }
537 }
538 } 835 }
539 836
540 for (curr=head; curr != NULL; curr=curr->next) 837 /*
838 * The cipher selection for the list is done. The ciphers are added
839 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
840 */
841 for (curr = head; curr != NULL; curr = curr->next)
541 { 842 {
542 if (curr->active) 843 if (curr->active)
543 { 844 {
544 sk_push(ret,(char *)curr->cipher); 845 sk_SSL_CIPHER_push(cipherstack, curr->cipher);
545#ifdef CIPHER_DEBUG 846#ifdef CIPHER_DEBUG
546 printf("<%s>\n",curr->cipher->name); 847 printf("<%s>\n",curr->cipher->name);
547#endif 848#endif
548 } 849 }
549 } 850 }
550 851 OPENSSL_free(list); /* Not needed any longer */
852
853 /*
854 * The following passage is a little bit odd. If pointer variables
855 * were supplied to hold STACK_OF(SSL_CIPHER) return information,
856 * the old memory pointed to is free()ed. Then, however, the
857 * cipher_list entry will be assigned just a copy of the returned
858 * cipher stack. For cipher_list_by_id a copy of the cipher stack
859 * will be created. See next comment...
860 */
551 if (cipher_list != NULL) 861 if (cipher_list != NULL)
552 { 862 {
553 if (*cipher_list != NULL) 863 if (*cipher_list != NULL)
554 sk_free(*cipher_list); 864 sk_SSL_CIPHER_free(*cipher_list);
555 *cipher_list=ret; 865 *cipher_list = cipherstack;
556 } 866 }
557 867
558 if (cipher_list_by_id != NULL) 868 if (cipher_list_by_id != NULL)
559 { 869 {
560 if (*cipher_list_by_id != NULL) 870 if (*cipher_list_by_id != NULL)
561 sk_free(*cipher_list_by_id); 871 sk_SSL_CIPHER_free(*cipher_list_by_id);
562 *cipher_list_by_id=sk_dup(ret); 872 *cipher_list_by_id = sk_SSL_CIPHER_dup(cipherstack);
563 } 873 }
564 874
875 /*
876 * Now it is getting really strange. If something failed during
877 * the previous pointer assignment or if one of the pointers was
878 * not requested, the error condition is met. That might be
879 * discussable. The strange thing is however that in this case
880 * the memory "ret" pointed to is "free()ed" and hence the pointer
881 * cipher_list becomes wild. The memory reserved for
882 * cipher_list_by_id however is not "free()ed" and stays intact.
883 */
565 if ( (cipher_list_by_id == NULL) || 884 if ( (cipher_list_by_id == NULL) ||
566 (*cipher_list_by_id == NULL) || 885 (*cipher_list_by_id == NULL) ||
567 (cipher_list == NULL) || 886 (cipher_list == NULL) ||
568 (*cipher_list == NULL)) 887 (*cipher_list == NULL))
569 goto err; 888 {
570 sk_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); 889 sk_SSL_CIPHER_free(cipherstack);
571 890 return(NULL);
572 ok=ret; 891 }
573 ret=NULL; 892
574err: 893 sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
575 if (tmp_str) Free(tmp_str); 894
576 if (ops != NULL) Free(ops); 895 return(cipherstack);
577 if (ret != NULL) sk_free(ret);
578 if (ca_list != NULL) sk_free(ca_list);
579 if (list != NULL) Free(list);
580 return(ok);
581 } 896 }
582 897
583char *SSL_CIPHER_description(cipher,buf,len) 898char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
584SSL_CIPHER *cipher;
585char *buf;
586int len;
587 { 899 {
588 int export; 900 int is_export,pkl,kl;
589 char *ver,*exp; 901 char *ver,*exp;
590 char *kx,*au,*enc,*mac; 902 char *kx,*au,*enc,*mac;
591 unsigned long alg,alg2; 903 unsigned long alg,alg2,alg_s;
904#ifdef KSSL_DEBUG
905 static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx\n";
906#else
592 static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; 907 static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
593 908#endif /* KSSL_DEBUG */
909
594 alg=cipher->algorithms; 910 alg=cipher->algorithms;
911 alg_s=cipher->algo_strength;
595 alg2=cipher->algorithm2; 912 alg2=cipher->algorithm2;
596 913
597 export=(alg&SSL_EXP)?1:0; 914 is_export=SSL_C_IS_EXPORT(cipher);
598 exp=(export)?" export":""; 915 pkl=SSL_C_EXPORT_PKEYLENGTH(cipher);
916 kl=SSL_C_EXPORT_KEYLENGTH(cipher);
917 exp=is_export?" export":"";
599 918
600 if (alg & SSL_SSLV2) 919 if (alg & SSL_SSLV2)
601 ver="SSLv2"; 920 ver="SSLv2";
@@ -607,7 +926,7 @@ int len;
607 switch (alg&SSL_MKEY_MASK) 926 switch (alg&SSL_MKEY_MASK)
608 { 927 {
609 case SSL_kRSA: 928 case SSL_kRSA:
610 kx=(export)?"RSA(512)":"RSA"; 929 kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
611 break; 930 break;
612 case SSL_kDHr: 931 case SSL_kDHr:
613 kx="DH/RSA"; 932 kx="DH/RSA";
@@ -615,11 +934,15 @@ int len;
615 case SSL_kDHd: 934 case SSL_kDHd:
616 kx="DH/DSS"; 935 kx="DH/DSS";
617 break; 936 break;
937 case SSL_kKRB5: /* VRS */
938 case SSL_KRB5: /* VRS */
939 kx="KRB5";
940 break;
618 case SSL_kFZA: 941 case SSL_kFZA:
619 kx="Fortezza"; 942 kx="Fortezza";
620 break; 943 break;
621 case SSL_kEDH: 944 case SSL_kEDH:
622 kx=(export)?"DH(512)":"DH"; 945 kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH";
623 break; 946 break;
624 default: 947 default:
625 kx="unknown"; 948 kx="unknown";
@@ -636,6 +959,10 @@ int len;
636 case SSL_aDH: 959 case SSL_aDH:
637 au="DH"; 960 au="DH";
638 break; 961 break;
962 case SSL_aKRB5: /* VRS */
963 case SSL_KRB5: /* VRS */
964 au="KRB5";
965 break;
639 case SSL_aFZA: 966 case SSL_aFZA:
640 case SSL_aNULL: 967 case SSL_aNULL:
641 au="None"; 968 au="None";
@@ -648,16 +975,17 @@ int len;
648 switch (alg&SSL_ENC_MASK) 975 switch (alg&SSL_ENC_MASK)
649 { 976 {
650 case SSL_DES: 977 case SSL_DES:
651 enc=export?"DES(40)":"DES(56)"; 978 enc=(is_export && kl == 5)?"DES(40)":"DES(56)";
652 break; 979 break;
653 case SSL_3DES: 980 case SSL_3DES:
654 enc="3DES(168)"; 981 enc="3DES(168)";
655 break; 982 break;
656 case SSL_RC4: 983 case SSL_RC4:
657 enc=export?"RC4(40)":((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); 984 enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)")
985 :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)");
658 break; 986 break;
659 case SSL_RC2: 987 case SSL_RC2:
660 enc=export?"RC2(40)":"RC2(128)"; 988 enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)";
661 break; 989 break;
662 case SSL_IDEA: 990 case SSL_IDEA:
663 enc="IDEA(128)"; 991 enc="IDEA(128)";
@@ -668,6 +996,15 @@ int len;
668 case SSL_eNULL: 996 case SSL_eNULL:
669 enc="None"; 997 enc="None";
670 break; 998 break;
999 case SSL_AES:
1000 switch(cipher->strength_bits)
1001 {
1002 case 128: enc="AESdraft(128)"; break;
1003 case 192: enc="AESdraft(192)"; break;
1004 case 256: enc="AESdraft(256)"; break;
1005 default: enc="AESdraft(?""?""?)"; break;
1006 }
1007 break;
671 default: 1008 default:
672 enc="unknown"; 1009 enc="unknown";
673 break; 1010 break;
@@ -688,18 +1025,22 @@ int len;
688 1025
689 if (buf == NULL) 1026 if (buf == NULL)
690 { 1027 {
691 buf=Malloc(128); 1028 len=128;
692 if (buf == NULL) return("Malloc Error"); 1029 buf=OPENSSL_malloc(len);
1030 if (buf == NULL) return("OPENSSL_malloc Error");
693 } 1031 }
694 else if (len < 128) 1032 else if (len < 128)
695 return("Buffer too small"); 1033 return("Buffer too small");
696 1034
697 sprintf(buf,format,cipher->name,ver,kx,au,enc,mac,exp); 1035#ifdef KSSL_DEBUG
1036 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp,alg);
1037#else
1038 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp);
1039#endif /* KSSL_DEBUG */
698 return(buf); 1040 return(buf);
699 } 1041 }
700 1042
701char *SSL_CIPHER_get_version(c) 1043char *SSL_CIPHER_get_version(SSL_CIPHER *c)
702SSL_CIPHER *c;
703 { 1044 {
704 int i; 1045 int i;
705 1046
@@ -714,45 +1055,78 @@ SSL_CIPHER *c;
714 } 1055 }
715 1056
716/* return the actual cipher being used */ 1057/* return the actual cipher being used */
717char *SSL_CIPHER_get_name(c) 1058const char *SSL_CIPHER_get_name(SSL_CIPHER *c)
718SSL_CIPHER *c;
719 { 1059 {
720 if (c != NULL) 1060 if (c != NULL)
721 return(c->name); 1061 return(c->name);
722 return("(NONE)"); 1062 return("(NONE)");
723 } 1063 }
724 1064
725/* number of bits for symetric cipher */ 1065/* number of bits for symmetric cipher */
726int SSL_CIPHER_get_bits(c,alg_bits) 1066int SSL_CIPHER_get_bits(SSL_CIPHER *c, int *alg_bits)
727SSL_CIPHER *c;
728int *alg_bits;
729 { 1067 {
730 int ret=0,a=0; 1068 int ret=0;
731 EVP_CIPHER *enc;
732 EVP_MD *md;
733 1069
734 if (c != NULL) 1070 if (c != NULL)
735 { 1071 {
736 if (!ssl_cipher_get_evp(c,&enc,&md)) 1072 if (alg_bits != NULL) *alg_bits = c->alg_bits;
737 return(0); 1073 ret = c->strength_bits;
1074 }
1075 return(ret);
1076 }
738 1077
739 a=EVP_CIPHER_key_length(enc)*8; 1078SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
1079 {
1080 SSL_COMP *ctmp;
1081 int i,nn;
740 1082
741 if (c->algorithms & SSL_EXP) 1083 if ((n == 0) || (sk == NULL)) return(NULL);
742 { 1084 nn=sk_SSL_COMP_num(sk);
743 ret=40; 1085 for (i=0; i<nn; i++)
744 } 1086 {
745 else 1087 ctmp=sk_SSL_COMP_value(sk,i);
746 { 1088 if (ctmp->id == n)
747 if (c->algorithm2 & SSL2_CF_8_BYTE_ENC) 1089 return(ctmp);
748 ret=64;
749 else
750 ret=a;
751 }
752 } 1090 }
1091 return(NULL);
1092 }
753 1093
754 if (alg_bits != NULL) *alg_bits=a; 1094static int sk_comp_cmp(const SSL_COMP * const *a,
755 1095 const SSL_COMP * const *b)
756 return(ret); 1096 {
1097 return((*a)->id-(*b)->id);
757 } 1098 }
758 1099
1100STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1101 {
1102 return(ssl_comp_methods);
1103 }
1104
1105int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1106 {
1107 SSL_COMP *comp;
1108 STACK_OF(SSL_COMP) *sk;
1109
1110 if (cm == NULL || cm->type == NID_undef)
1111 return 1;
1112
1113 MemCheck_off();
1114 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
1115 comp->id=id;
1116 comp->method=cm;
1117 if (ssl_comp_methods == NULL)
1118 sk=ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp);
1119 else
1120 sk=ssl_comp_methods;
1121 if ((sk == NULL) || !sk_SSL_COMP_push(sk,comp))
1122 {
1123 MemCheck_on();
1124 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE);
1125 return(0);
1126 }
1127 else
1128 {
1129 MemCheck_on();
1130 return(1);
1131 }
1132 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-28 19:53:32 +0000