diff options
| -rw-r--r-- | security/integrity/ima/ima_api.c | 6 | ||||
| -rw-r--r-- | security/integrity/ima/ima_appraise.c | 23 | ||||
| -rw-r--r-- | security/integrity/integrity.h | 2 |
3 files changed, 17 insertions, 14 deletions
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c index 41cce84416c5..33d46859753a 100644 --- a/security/integrity/ima/ima_api.c +++ b/security/integrity/ima/ima_api.c | |||
| @@ -147,8 +147,8 @@ int ima_collect_measurement(struct integrity_iint_cache *iint, | |||
| 147 | if (!(iint->flags & IMA_COLLECTED)) { | 147 | if (!(iint->flags & IMA_COLLECTED)) { |
| 148 | u64 i_version = file->f_dentry->d_inode->i_version; | 148 | u64 i_version = file->f_dentry->d_inode->i_version; |
| 149 | 149 | ||
| 150 | memset(iint->digest, 0, IMA_DIGEST_SIZE); | 150 | iint->ima_xattr.type = IMA_XATTR_DIGEST; |
| 151 | result = ima_calc_hash(file, iint->digest); | 151 | result = ima_calc_hash(file, iint->ima_xattr.digest); |
| 152 | if (!result) { | 152 | if (!result) { |
| 153 | iint->version = i_version; | 153 | iint->version = i_version; |
| 154 | iint->flags |= IMA_COLLECTED; | 154 | iint->flags |= IMA_COLLECTED; |
| @@ -196,7 +196,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint, | |||
| 196 | return; | 196 | return; |
| 197 | } | 197 | } |
| 198 | memset(&entry->template, 0, sizeof(entry->template)); | 198 | memset(&entry->template, 0, sizeof(entry->template)); |
| 199 | memcpy(entry->template.digest, iint->digest, IMA_DIGEST_SIZE); | 199 | memcpy(entry->template.digest, iint->ima_xattr.digest, IMA_DIGEST_SIZE); |
| 200 | strcpy(entry->template.file_name, | 200 | strcpy(entry->template.file_name, |
| 201 | (strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ? | 201 | (strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ? |
| 202 | file->f_dentry->d_name.name : filename); | 202 | file->f_dentry->d_name.name : filename); |
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index becc7e09116d..f9979976aa5d 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c | |||
| @@ -45,9 +45,9 @@ int ima_must_appraise(struct inode *inode, enum ima_hooks func, int mask) | |||
| 45 | static void ima_fix_xattr(struct dentry *dentry, | 45 | static void ima_fix_xattr(struct dentry *dentry, |
| 46 | struct integrity_iint_cache *iint) | 46 | struct integrity_iint_cache *iint) |
| 47 | { | 47 | { |
| 48 | iint->digest[0] = IMA_XATTR_DIGEST; | 48 | iint->ima_xattr.type = IMA_XATTR_DIGEST; |
| 49 | __vfs_setxattr_noperm(dentry, XATTR_NAME_IMA, | 49 | __vfs_setxattr_noperm(dentry, XATTR_NAME_IMA, (u8 *)&iint->ima_xattr, |
| 50 | iint->digest, IMA_DIGEST_SIZE + 1, 0); | 50 | sizeof iint->ima_xattr, 0); |
| 51 | } | 51 | } |
| 52 | 52 | ||
| 53 | /* | 53 | /* |
| @@ -63,7 +63,7 @@ int ima_appraise_measurement(struct integrity_iint_cache *iint, | |||
| 63 | { | 63 | { |
| 64 | struct dentry *dentry = file->f_dentry; | 64 | struct dentry *dentry = file->f_dentry; |
| 65 | struct inode *inode = dentry->d_inode; | 65 | struct inode *inode = dentry->d_inode; |
| 66 | u8 xattr_value[IMA_DIGEST_SIZE]; | 66 | struct evm_ima_xattr_data xattr_value; |
| 67 | enum integrity_status status = INTEGRITY_UNKNOWN; | 67 | enum integrity_status status = INTEGRITY_UNKNOWN; |
| 68 | const char *op = "appraise_data"; | 68 | const char *op = "appraise_data"; |
| 69 | char *cause = "unknown"; | 69 | char *cause = "unknown"; |
| @@ -77,8 +77,8 @@ int ima_appraise_measurement(struct integrity_iint_cache *iint, | |||
| 77 | if (iint->flags & IMA_APPRAISED) | 77 | if (iint->flags & IMA_APPRAISED) |
| 78 | return iint->ima_status; | 78 | return iint->ima_status; |
| 79 | 79 | ||
| 80 | rc = inode->i_op->getxattr(dentry, XATTR_NAME_IMA, xattr_value, | 80 | rc = inode->i_op->getxattr(dentry, XATTR_NAME_IMA, (u8 *)&xattr_value, |
| 81 | IMA_DIGEST_SIZE); | 81 | sizeof xattr_value); |
| 82 | if (rc <= 0) { | 82 | if (rc <= 0) { |
| 83 | if (rc && rc != -ENODATA) | 83 | if (rc && rc != -ENODATA) |
| 84 | goto out; | 84 | goto out; |
| @@ -89,7 +89,8 @@ int ima_appraise_measurement(struct integrity_iint_cache *iint, | |||
| 89 | goto out; | 89 | goto out; |
| 90 | } | 90 | } |
| 91 | 91 | ||
| 92 | status = evm_verifyxattr(dentry, XATTR_NAME_IMA, xattr_value, rc, iint); | 92 | status = evm_verifyxattr(dentry, XATTR_NAME_IMA, (u8 *)&xattr_value, |
| 93 | rc, iint); | ||
| 93 | if ((status != INTEGRITY_PASS) && (status != INTEGRITY_UNKNOWN)) { | 94 | if ((status != INTEGRITY_PASS) && (status != INTEGRITY_UNKNOWN)) { |
| 94 | if ((status == INTEGRITY_NOLABEL) | 95 | if ((status == INTEGRITY_NOLABEL) |
| 95 | || (status == INTEGRITY_NOXATTRS)) | 96 | || (status == INTEGRITY_NOXATTRS)) |
| @@ -99,14 +100,16 @@ int ima_appraise_measurement(struct integrity_iint_cache *iint, | |||
| 99 | goto out; | 100 | goto out; |
| 100 | } | 101 | } |
| 101 | 102 | ||
| 102 | rc = memcmp(xattr_value, iint->digest, IMA_DIGEST_SIZE); | 103 | rc = memcmp(xattr_value.digest, iint->ima_xattr.digest, |
| 104 | IMA_DIGEST_SIZE); | ||
| 103 | if (rc) { | 105 | if (rc) { |
| 104 | status = INTEGRITY_FAIL; | 106 | status = INTEGRITY_FAIL; |
| 105 | cause = "invalid-hash"; | 107 | cause = "invalid-hash"; |
| 106 | print_hex_dump_bytes("security.ima: ", DUMP_PREFIX_NONE, | 108 | print_hex_dump_bytes("security.ima: ", DUMP_PREFIX_NONE, |
| 107 | xattr_value, IMA_DIGEST_SIZE); | 109 | &xattr_value, sizeof xattr_value); |
| 108 | print_hex_dump_bytes("collected: ", DUMP_PREFIX_NONE, | 110 | print_hex_dump_bytes("collected: ", DUMP_PREFIX_NONE, |
| 109 | iint->digest, IMA_DIGEST_SIZE); | 111 | (u8 *)&iint->ima_xattr, |
| 112 | sizeof iint->ima_xattr); | ||
| 110 | goto out; | 113 | goto out; |
| 111 | } | 114 | } |
| 112 | status = INTEGRITY_PASS; | 115 | status = INTEGRITY_PASS; |
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h index dac6b68e945a..91ccef1c704b 100644 --- a/security/integrity/integrity.h +++ b/security/integrity/integrity.h | |||
| @@ -39,7 +39,7 @@ struct integrity_iint_cache { | |||
| 39 | struct inode *inode; /* back pointer to inode in question */ | 39 | struct inode *inode; /* back pointer to inode in question */ |
| 40 | u64 version; /* track inode changes */ | 40 | u64 version; /* track inode changes */ |
| 41 | unsigned char flags; | 41 | unsigned char flags; |
| 42 | u8 digest[SHA1_DIGEST_SIZE]; | 42 | struct evm_ima_xattr_data ima_xattr; |
| 43 | enum integrity_status ima_status; | 43 | enum integrity_status ima_status; |
| 44 | enum integrity_status evm_status; | 44 | enum integrity_status evm_status; |
| 45 | }; | 45 | }; |
