security/nss/lib/ckfw/dbm/find.c@6474c204b198 (annotated)
security/nss/lib/ckfw/dbm/find.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | #include "ckdbm.h" |
| michael@0 | 6 | |
| michael@0 | 7 | static void |
| michael@0 | 8 | nss_dbm_mdFindObjects_Final |
| michael@0 | 9 | ( |
| michael@0 | 10 | NSSCKMDFindObjects *mdFindObjects, |
| michael@0 | 11 | NSSCKFWFindObjects *fwFindObjects, |
| michael@0 | 12 | NSSCKMDSession *mdSession, |
| michael@0 | 13 | NSSCKFWSession *fwSession, |
| michael@0 | 14 | NSSCKMDToken *mdToken, |
| michael@0 | 15 | NSSCKFWToken *fwToken, |
| michael@0 | 16 | NSSCKMDInstance *mdInstance, |
| michael@0 | 17 | NSSCKFWInstance *fwInstance |
| michael@0 | 18 | ) |
| michael@0 | 19 | { |
| michael@0 | 20 | nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc; |
| michael@0 | 21 | |
| michael@0 | 22 | /* Locks might have system resources associated */ |
| michael@0 | 23 | (void)NSSCKFWMutex_Destroy(find->list_lock); |
| michael@0 | 24 | (void)NSSArena_Destroy(find->arena); |
| michael@0 | 25 | } |
| michael@0 | 26 | |
| michael@0 | 27 | |
| michael@0 | 28 | static NSSCKMDObject * |
| michael@0 | 29 | nss_dbm_mdFindObjects_Next |
| michael@0 | 30 | ( |
| michael@0 | 31 | NSSCKMDFindObjects *mdFindObjects, |
| michael@0 | 32 | NSSCKFWFindObjects *fwFindObjects, |
| michael@0 | 33 | NSSCKMDSession *mdSession, |
| michael@0 | 34 | NSSCKFWSession *fwSession, |
| michael@0 | 35 | NSSCKMDToken *mdToken, |
| michael@0 | 36 | NSSCKFWToken *fwToken, |
| michael@0 | 37 | NSSCKMDInstance *mdInstance, |
| michael@0 | 38 | NSSCKFWInstance *fwInstance, |
| michael@0 | 39 | NSSArena *arena, |
| michael@0 | 40 | CK_RV *pError |
| michael@0 | 41 | ) |
| michael@0 | 42 | { |
| michael@0 | 43 | nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc; |
| michael@0 | 44 | struct nss_dbm_dbt_node *node; |
| michael@0 | 45 | nss_dbm_object_t *object; |
| michael@0 | 46 | NSSCKMDObject *rv; |
| michael@0 | 47 | |
| michael@0 | 48 | while(1) { |
| michael@0 | 49 | /* Lock */ |
| michael@0 | 50 | { |
| michael@0 | 51 | *pError = NSSCKFWMutex_Lock(find->list_lock); |
| michael@0 | 52 | if( CKR_OK != *pError ) { |
| michael@0 | 53 | return (NSSCKMDObject *)NULL; |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | node = find->found; |
| michael@0 | 57 | if( (struct nss_dbm_dbt_node *)NULL != node ) { |
| michael@0 | 58 | find->found = node->next; |
| michael@0 | 59 | } |
| michael@0 | 60 | |
| michael@0 | 61 | *pError = NSSCKFWMutex_Unlock(find->list_lock); |
| michael@0 | 62 | if( CKR_OK != *pError ) { |
| michael@0 | 63 | /* screwed now */ |
| michael@0 | 64 | return (NSSCKMDObject *)NULL; |
| michael@0 | 65 | } |
| michael@0 | 66 | } |
| michael@0 | 67 | |
| michael@0 | 68 | if( (struct nss_dbm_dbt_node *)NULL == node ) { |
| michael@0 | 69 | break; |
| michael@0 | 70 | } |
| michael@0 | 71 | |
| michael@0 | 72 | if( nss_dbm_db_object_still_exists(node->dbt) ) { |
| michael@0 | 73 | break; |
| michael@0 | 74 | } |
| michael@0 | 75 | } |
| michael@0 | 76 | |
| michael@0 | 77 | if( (struct nss_dbm_dbt_node *)NULL == node ) { |
| michael@0 | 78 | *pError = CKR_OK; |
| michael@0 | 79 | return (NSSCKMDObject *)NULL; |
| michael@0 | 80 | } |
| michael@0 | 81 | |
| michael@0 | 82 | object = nss_ZNEW(arena, nss_dbm_object_t); |
| michael@0 | 83 | if( (nss_dbm_object_t *)NULL == object ) { |
| michael@0 | 84 | *pError = CKR_HOST_MEMORY; |
| michael@0 | 85 | return (NSSCKMDObject *)NULL; |
| michael@0 | 86 | } |
| michael@0 | 87 | |
| michael@0 | 88 | object->arena = arena; |
| michael@0 | 89 | object->handle = nss_ZNEW(arena, nss_dbm_dbt_t); |
| michael@0 | 90 | if( (nss_dbm_dbt_t *)NULL == object->handle ) { |
| michael@0 | 91 | *pError = CKR_HOST_MEMORY; |
| michael@0 | 92 | return (NSSCKMDObject *)NULL; |
| michael@0 | 93 | } |
| michael@0 | 94 | |
| michael@0 | 95 | object->handle->my_db = node->dbt->my_db; |
| michael@0 | 96 | object->handle->dbt.size = node->dbt->dbt.size; |
| michael@0 | 97 | object->handle->dbt.data = nss_ZAlloc(arena, node->dbt->dbt.size); |
| michael@0 | 98 | if( (void *)NULL == object->handle->dbt.data ) { |
| michael@0 | 99 | *pError = CKR_HOST_MEMORY; |
| michael@0 | 100 | return (NSSCKMDObject *)NULL; |
| michael@0 | 101 | } |
| michael@0 | 102 | |
| michael@0 | 103 | (void)memcpy(object->handle->dbt.data, node->dbt->dbt.data, node->dbt->dbt.size); |
| michael@0 | 104 | |
| michael@0 | 105 | rv = nss_dbm_mdObject_factory(object, pError); |
| michael@0 | 106 | if( (NSSCKMDObject *)NULL == rv ) { |
| michael@0 | 107 | return (NSSCKMDObject *)NULL; |
| michael@0 | 108 | } |
| michael@0 | 109 | |
| michael@0 | 110 | return rv; |
| michael@0 | 111 | } |
| michael@0 | 112 | |
| michael@0 | 113 | NSS_IMPLEMENT NSSCKMDFindObjects * |
| michael@0 | 114 | nss_dbm_mdFindObjects_factory |
| michael@0 | 115 | ( |
| michael@0 | 116 | nss_dbm_find_t *find, |
| michael@0 | 117 | CK_RV *pError |
| michael@0 | 118 | ) |
| michael@0 | 119 | { |
| michael@0 | 120 | NSSCKMDFindObjects *rv; |
| michael@0 | 121 | |
| michael@0 | 122 | rv = nss_ZNEW(find->arena, NSSCKMDFindObjects); |
| michael@0 | 123 | if( (NSSCKMDFindObjects *)NULL == rv ) { |
| michael@0 | 124 | *pError = CKR_HOST_MEMORY; |
| michael@0 | 125 | return (NSSCKMDFindObjects *)NULL; |
| michael@0 | 126 | } |
| michael@0 | 127 | |
| michael@0 | 128 | rv->etc = (void *)find; |
| michael@0 | 129 | rv->Final = nss_dbm_mdFindObjects_Final; |
| michael@0 | 130 | rv->Next = nss_dbm_mdFindObjects_Next; |
| michael@0 | 131 | |
| michael@0 | 132 | return rv; |
| michael@0 | 133 | } |
