Change the trust and purpose code so it doesn't need init
[openssl.git] / crypto / x509 / x509_trs.c
index 94c64a1bcfb428c1cf831e2cecb12a9679eecb7d..f96f5f9b2614a45dab5c75b81117bc40f5f132d1 100644 (file)
@@ -67,72 +67,110 @@ static void trtable_free(X509_TRUST *p);
 static int trust_1bit(X509_TRUST *trust, X509 *x, int flags);
 static int trust_any(X509_TRUST *trust, X509 *x, int flags);
 
+/* WARNING: the following table should be kept in order of trust
+ * and without any gaps so we can just subtract the minimum trust
+ * value to get an index into the table
+ */
+
 static X509_TRUST trstandard[] = {
 {X509_TRUST_ANY, 0, trust_any, "Any", 0, NULL},
 {X509_TRUST_SSL_CLIENT, 0, trust_1bit, "SSL Client", X509_TRUST_BIT_SSL_CLIENT, NULL},
 {X509_TRUST_SSL_SERVER, 0, trust_1bit, "SSL Client", X509_TRUST_BIT_SSL_SERVER, NULL},
 {X509_TRUST_EMAIL, 0, trust_1bit, "S/MIME email", X509_TRUST_BIT_EMAIL, NULL},
 {X509_TRUST_OBJECT_SIGN, 0, trust_1bit, "Object Signing", X509_TRUST_BIT_OBJECT_SIGN, NULL},
-{0, 0, NULL, NULL, 0, NULL}
 };
 
+#define X509_TRUST_COUNT       (sizeof(trstandard)/sizeof(X509_TRUST))
+
 IMPLEMENT_STACK_OF(X509_TRUST)
 
 static STACK_OF(X509_TRUST) *trtable = NULL;
 
 static int tr_cmp(X509_TRUST **a, X509_TRUST **b)
 {
-       return (*a)->trust_id - (*b)->trust_id;
+       return (*a)->trust - (*b)->trust;
 }
 
 int X509_check_trust(X509 *x, int id, int flags)
 {
-       int idx;
        X509_TRUST *pt;
+       int idx;
        if(id == -1) return 1;
-       idx = X509_TRUST_get_by_id(id);
-       if(idx == -1) return -1;
-       pt = sk_X509_TRUST_value(trtable, idx);
+       if(!(idx = X509_TRUST_get_by_id(id))) return 0;
+       pt = X509_TRUST_iget(idx);
        return pt->check_trust(pt, x, flags);
 }
 
 int X509_TRUST_get_count(void)
 {
-       return sk_X509_TRUST_num(trtable);
+       if(!trtable) return X509_TRUST_COUNT;
+       return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT;
 }
 
 X509_TRUST * X509_TRUST_iget(int idx)
 {
-       return sk_X509_TRUST_value(trtable, idx);
+       if(idx < 0) return NULL;
+       if(idx < X509_TRUST_COUNT) return trstandard + idx;
+       return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);
 }
 
 int X509_TRUST_get_by_id(int id)
 {
        X509_TRUST tmp;
-       tmp.trust_id = id;
+       int idx;
+       if((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX))
+                                return id - X509_TRUST_MIN;
+       tmp.trust = id;
        if(!trtable) return -1;
-       return sk_X509_TRUST_find(trtable, &tmp);
+       idx = sk_X509_TRUST_find(trtable, &tmp);
+       if(idx == -1) return -1;
+       return idx + X509_TRUST_COUNT;
 }
 
-int X509_TRUST_add(X509_TRUST *xp)
+int X509_TRUST_add(int id, int flags, int (*ck)(X509_TRUST *, X509 *, int),
+                                       char *name, int arg1, void *arg2)
 {
        int idx;
-       if(!trtable)
-               {
-               trtable = sk_X509_TRUST_new(tr_cmp);
-               if (!trtable) 
-                       {
+       X509_TRUST *trtmp;
+       /* This is set according to what we change: application can't set it */
+       flags &= ~X509_TRUST_DYNAMIC;
+       /* This will always be set for application modified trust entries */
+       flags |= X509_TRUST_DYNAMIC_NAME;
+       /* Get existing entry if any */
+       idx = X509_TRUST_get_by_id(id);
+       /* Need a new entry */
+       if(idx == -1) {
+               if(!(trtmp = Malloc(sizeof(X509_TRUST)))) {
                        X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
                        return 0;
-                       }
                }
-                       
-       idx = X509_TRUST_get_by_id(xp->trust_id);
-       if(idx != -1) {
-               trtable_free(sk_X509_TRUST_value(trtable, idx));
-               sk_X509_TRUST_set(trtable, idx, xp);
-       } else {
-               if (!sk_X509_TRUST_push(trtable, xp)) {
+               trtmp->flags = X509_TRUST_DYNAMIC;
+       } else trtmp = X509_TRUST_iget(idx);
+
+       /* Free existing name if dynamic */
+       if(trtmp->flags & X509_TRUST_DYNAMIC_NAME) Free(trtmp->name);
+       /* dup supplied name */
+       if(!(trtmp->name = BUF_strdup(name))) {
+               X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
+               return 0;
+       }
+       /* Keep the dynamic flag of existing entry */
+       trtmp->flags &= X509_TRUST_DYNAMIC;
+       /* Set all other flags */
+       trtmp->flags |= flags;
+
+       trtmp->trust = id;
+       trtmp->check_trust = ck;
+       trtmp->arg1 = arg1;
+       trtmp->arg2 = arg2;
+
+       /* If its a new entry manage the dynamic table */
+       if(idx == -1) {
+               if(!trtable && !(trtable = sk_X509_TRUST_new(tr_cmp))) {
+                       X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
+                       return 0;
+               }
+               if (!sk_X509_TRUST_push(trtable, trtmp)) {
                        X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
                        return 0;
                }
@@ -143,40 +181,35 @@ int X509_TRUST_add(X509_TRUST *xp)
 static void trtable_free(X509_TRUST *p)
        {
        if(!p) return;
-       if (p->trust_flags & X509_TRUST_DYNAMIC) 
+       if (p->flags & X509_TRUST_DYNAMIC) 
                {
-               if (p->trust_flags & X509_TRUST_DYNAMIC_NAME)
-                       Free(p->trust_name);
+               if (p->flags & X509_TRUST_DYNAMIC_NAME)
+                       Free(p->name);
                Free(p);
                }
        }
 
 void X509_TRUST_cleanup(void)
 {
+       int i;
+       for(i = 0; i < X509_TRUST_COUNT; i++) trtable_free(trstandard + i);
        sk_X509_TRUST_pop_free(trtable, trtable_free);
        trtable = NULL;
 }
 
-void X509_TRUST_add_standard(void)
-{
-       X509_TRUST *xp;
-       for(xp = trstandard; xp->trust_name; xp++)
-               X509_TRUST_add(xp);
-}
-
-int X509_TRUST_get_id(X509_TRUST *xp)
+int X509_TRUST_get_flags(X509_TRUST *xp)
 {
-       return xp->trust_id;
+       return xp->flags;
 }
 
 char *X509_TRUST_iget_name(X509_TRUST *xp)
 {
-       return xp->trust_name;
+       return xp->name;
 }
 
 int X509_TRUST_get_trust(X509_TRUST *xp)
 {
-       return xp->trust_id;
+       return xp->trust;
 }
 
 static int trust_1bit(X509_TRUST *trust, X509 *x, int flags)