1 | /* |
2 | * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <openssl/objects.h> |
11 | #include "obj_xref.h" |
12 | #include "internal/nelem.h" |
13 | #include <openssl/err.h> |
14 | |
15 | static STACK_OF(nid_triple) *sig_app, *sigx_app; |
16 | |
17 | static int sig_cmp(const nid_triple *a, const nid_triple *b) |
18 | { |
19 | return a->sign_id - b->sign_id; |
20 | } |
21 | |
22 | DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); |
23 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); |
24 | |
25 | static int sig_sk_cmp(const nid_triple *const *a, const nid_triple *const *b) |
26 | { |
27 | return (*a)->sign_id - (*b)->sign_id; |
28 | } |
29 | |
30 | DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); |
31 | |
32 | static int sigx_cmp(const nid_triple *const *a, const nid_triple *const *b) |
33 | { |
34 | int ret; |
35 | ret = (*a)->hash_id - (*b)->hash_id; |
36 | if (ret) |
37 | return ret; |
38 | return (*a)->pkey_id - (*b)->pkey_id; |
39 | } |
40 | |
41 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); |
42 | |
43 | int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid) |
44 | { |
45 | nid_triple tmp; |
46 | const nid_triple *rv = NULL; |
47 | tmp.sign_id = signid; |
48 | |
49 | if (sig_app != NULL) { |
50 | int idx = sk_nid_triple_find(sig_app, &tmp); |
51 | rv = sk_nid_triple_value(sig_app, idx); |
52 | } |
53 | #ifndef OBJ_XREF_TEST2 |
54 | if (rv == NULL) { |
55 | rv = OBJ_bsearch_sig(&tmp, sigoid_srt, OSSL_NELEM(sigoid_srt)); |
56 | } |
57 | #endif |
58 | if (rv == NULL) |
59 | return 0; |
60 | if (pdig_nid) |
61 | *pdig_nid = rv->hash_id; |
62 | if (ppkey_nid) |
63 | *ppkey_nid = rv->pkey_id; |
64 | return 1; |
65 | } |
66 | |
67 | int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid) |
68 | { |
69 | nid_triple tmp; |
70 | const nid_triple *t = &tmp; |
71 | const nid_triple **rv = NULL; |
72 | |
73 | tmp.hash_id = dig_nid; |
74 | tmp.pkey_id = pkey_nid; |
75 | |
76 | if (sigx_app) { |
77 | int idx = sk_nid_triple_find(sigx_app, &tmp); |
78 | if (idx >= 0) { |
79 | t = sk_nid_triple_value(sigx_app, idx); |
80 | rv = &t; |
81 | } |
82 | } |
83 | #ifndef OBJ_XREF_TEST2 |
84 | if (rv == NULL) { |
85 | rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref, OSSL_NELEM(sigoid_srt_xref)); |
86 | } |
87 | #endif |
88 | if (rv == NULL) |
89 | return 0; |
90 | if (psignid) |
91 | *psignid = (*rv)->sign_id; |
92 | return 1; |
93 | } |
94 | |
95 | int OBJ_add_sigid(int signid, int dig_id, int pkey_id) |
96 | { |
97 | nid_triple *ntr; |
98 | if (sig_app == NULL) |
99 | sig_app = sk_nid_triple_new(sig_sk_cmp); |
100 | if (sig_app == NULL) |
101 | return 0; |
102 | if (sigx_app == NULL) |
103 | sigx_app = sk_nid_triple_new(sigx_cmp); |
104 | if (sigx_app == NULL) |
105 | return 0; |
106 | if ((ntr = OPENSSL_malloc(sizeof(*ntr))) == NULL) { |
107 | OBJerr(OBJ_F_OBJ_ADD_SIGID, ERR_R_MALLOC_FAILURE); |
108 | return 0; |
109 | } |
110 | ntr->sign_id = signid; |
111 | ntr->hash_id = dig_id; |
112 | ntr->pkey_id = pkey_id; |
113 | |
114 | if (!sk_nid_triple_push(sig_app, ntr)) { |
115 | OPENSSL_free(ntr); |
116 | return 0; |
117 | } |
118 | |
119 | if (!sk_nid_triple_push(sigx_app, ntr)) |
120 | return 0; |
121 | |
122 | sk_nid_triple_sort(sig_app); |
123 | sk_nid_triple_sort(sigx_app); |
124 | |
125 | return 1; |
126 | } |
127 | |
128 | static void sid_free(nid_triple *tt) |
129 | { |
130 | OPENSSL_free(tt); |
131 | } |
132 | |
133 | void OBJ_sigid_free(void) |
134 | { |
135 | sk_nid_triple_pop_free(sig_app, sid_free); |
136 | sig_app = NULL; |
137 | sk_nid_triple_free(sigx_app); |
138 | sigx_app = NULL; |
139 | } |
140 | |