@@ -173,18 +173,18 @@ static inline unsigned long ima_hash_key(u8 *digest)
}
#define __ima_hooks(hook) \
- hook(NONE) \
- hook(FILE_CHECK) \
- hook(MMAP_CHECK) \
- hook(BPRM_CHECK) \
- hook(CREDS_CHECK) \
- hook(POST_SETATTR) \
- hook(MODULE_CHECK) \
- hook(FIRMWARE_CHECK) \
- hook(KEXEC_KERNEL_CHECK) \
- hook(KEXEC_INITRAMFS_CHECK) \
- hook(POLICY_CHECK) \
- hook(MAX_CHECK)
+ hook(IMA_NONE) \
+ hook(IMA_FILE_CHECK) \
+ hook(IMA_MMAP_CHECK) \
+ hook(IMA_BPRM_CHECK) \
+ hook(IMA_CREDS_CHECK) \
+ hook(IMA_POST_SETATTR) \
+ hook(IMA_MODULE_CHECK) \
+ hook(IMA_FIRMWARE_CHECK) \
+ hook(IMA_KEXEC_KERNEL_CHECK) \
+ hook(IMA_KEXEC_INITRAMFS_CHECK) \
+ hook(IMA_POLICY_CHECK) \
+ hook(IMA_MAX_CHECK)
#define __ima_hook_enumify(ENUM) ENUM,
enum ima_hooks {
@@ -168,7 +168,8 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
* The policy is defined in terms of keypairs:
* subj=, obj=, type=, func=, mask=, fsmagic=
* subj,obj, and type: are LSM specific.
- * func: FILE_CHECK | BPRM_CHECK | CREDS_CHECK | MMAP_CHECK | MODULE_CHECK
+ * func: IMA_FILE_CHECK | IMA_BPRM_CHECK | IMA_CREDS_CHECK \
+ * | IMA_MMAP_CHECK | IMA_MODULE_CHECK
* mask: contains the permission mask
* fsmagic: hex value
*
@@ -86,16 +86,16 @@ enum integrity_status ima_get_cache_status(struct integrity_iint_cache *iint,
enum ima_hooks func)
{
switch (func) {
- case MMAP_CHECK:
+ case IMA_MMAP_CHECK:
return iint->ima_mmap_status;
- case BPRM_CHECK:
+ case IMA_BPRM_CHECK:
return iint->ima_bprm_status;
- case CREDS_CHECK:
+ case IMA_CREDS_CHECK:
return iint->ima_creds_status;
- case FILE_CHECK:
- case POST_SETATTR:
+ case IMA_FILE_CHECK:
+ case IMA_POST_SETATTR:
return iint->ima_file_status;
- case MODULE_CHECK ... MAX_CHECK - 1:
+ case IMA_MODULE_CHECK ... IMA_MAX_CHECK - 1:
default:
return iint->ima_read_status;
}
@@ -106,19 +106,19 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
enum integrity_status status)
{
switch (func) {
- case MMAP_CHECK:
+ case IMA_MMAP_CHECK:
iint->ima_mmap_status = status;
break;
- case BPRM_CHECK:
+ case IMA_BPRM_CHECK:
iint->ima_bprm_status = status;
break;
- case CREDS_CHECK:
+ case IMA_CREDS_CHECK:
iint->ima_creds_status = status;
- case FILE_CHECK:
- case POST_SETATTR:
+ case IMA_FILE_CHECK:
+ case IMA_POST_SETATTR:
iint->ima_file_status = status;
break;
- case MODULE_CHECK ... MAX_CHECK - 1:
+ case IMA_MODULE_CHECK ... IMA_MAX_CHECK - 1:
default:
iint->ima_read_status = status;
break;
@@ -129,20 +129,20 @@ static void ima_cache_flags(struct integrity_iint_cache *iint,
enum ima_hooks func)
{
switch (func) {
- case MMAP_CHECK:
+ case IMA_MMAP_CHECK:
iint->flags |= (IMA_MMAP_APPRAISED | IMA_APPRAISED);
break;
- case BPRM_CHECK:
+ case IMA_BPRM_CHECK:
iint->flags |= (IMA_BPRM_APPRAISED | IMA_APPRAISED);
break;
- case CREDS_CHECK:
+ case IMA_CREDS_CHECK:
iint->flags |= (IMA_CREDS_APPRAISED | IMA_APPRAISED);
break;
- case FILE_CHECK:
- case POST_SETATTR:
+ case IMA_FILE_CHECK:
+ case IMA_POST_SETATTR:
iint->flags |= (IMA_FILE_APPRAISED | IMA_APPRAISED);
break;
- case MODULE_CHECK ... MAX_CHECK - 1:
+ case IMA_MODULE_CHECK ... IMA_MAX_CHECK - 1:
default:
iint->flags |= (IMA_READ_APPRAISED | IMA_APPRAISED);
break;
@@ -298,7 +298,7 @@ int ima_appraise_measurement(enum ima_hooks func,
break;
}
if (IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING) && rc &&
- func == KEXEC_KERNEL_CHECK)
+ func == IMA_KEXEC_KERNEL_CHECK)
rc = integrity_digsig_verify(INTEGRITY_KEYRING_PLATFORM,
(const char *)xattr_value,
xattr_len,
@@ -400,7 +400,7 @@ void ima_inode_post_setattr(struct dentry *dentry)
|| !(inode->i_opflags & IOP_XATTR))
return;
- action = ima_must_appraise(inode, MAY_ACCESS, POST_SETATTR);
+ action = ima_must_appraise(inode, MAY_ACCESS, IMA_POST_SETATTR);
if (!action)
__vfs_removexattr(dentry, XATTR_NAME_IMA);
iint = integrity_iint_find(inode);
@@ -193,7 +193,7 @@ static int process_measurement(struct file *file, const struct cred *cred,
* Included is the appraise submask.
*/
action = ima_get_action(inode, cred, secid, mask, func, &pcr);
- violation_check = ((func == FILE_CHECK || func == MMAP_CHECK) &&
+ violation_check = ((func == IMA_FILE_CHECK || func == IMA_MMAP_CHECK) &&
(ima_policy_flag & IMA_MEASURE));
if (!action && !violation_check)
return 0;
@@ -202,7 +202,7 @@ static int process_measurement(struct file *file, const struct cred *cred,
/* Is the appraise rule hook specific? */
if (action & IMA_FILE_APPRAISE)
- func = FILE_CHECK;
+ func = IMA_FILE_CHECK;
inode_lock(inode);
@@ -340,7 +340,7 @@ int ima_file_mmap(struct file *file, unsigned long prot)
if (file && (prot & PROT_EXEC)) {
security_task_getsecid(current, &secid);
return process_measurement(file, current_cred(), secid, NULL,
- 0, MAY_EXEC, MMAP_CHECK);
+ 0, MAY_EXEC, IMA_MMAP_CHECK);
}
return 0;
@@ -366,13 +366,13 @@ int ima_bprm_check(struct linux_binprm *bprm)
security_task_getsecid(current, &secid);
ret = process_measurement(bprm->file, current_cred(), secid, NULL, 0,
- MAY_EXEC, BPRM_CHECK);
+ MAY_EXEC, IMA_BPRM_CHECK);
if (ret)
return ret;
security_cred_getsecid(bprm->cred, &secid);
return process_measurement(bprm->file, bprm->cred, secid, NULL, 0,
- MAY_EXEC, CREDS_CHECK);
+ MAY_EXEC, IMA_CREDS_CHECK);
}
/**
@@ -392,7 +392,7 @@ int ima_file_check(struct file *file, int mask)
security_task_getsecid(current, &secid);
return process_measurement(file, current_cred(), secid, NULL, 0,
mask & (MAY_READ | MAY_WRITE | MAY_EXEC |
- MAY_APPEND), FILE_CHECK);
+ MAY_APPEND), IMA_FILE_CHECK);
}
EXPORT_SYMBOL_GPL(ima_file_check);
@@ -409,7 +409,7 @@ void ima_post_create_tmpfile(struct inode *inode)
struct integrity_iint_cache *iint;
int must_appraise;
- must_appraise = ima_must_appraise(inode, MAY_ACCESS, FILE_CHECK);
+ must_appraise = ima_must_appraise(inode, MAY_ACCESS, IMA_FILE_CHECK);
if (!must_appraise)
return;
@@ -436,7 +436,7 @@ void ima_post_path_mknod(struct dentry *dentry)
struct inode *inode = dentry->d_inode;
int must_appraise;
- must_appraise = ima_must_appraise(inode, MAY_ACCESS, FILE_CHECK);
+ must_appraise = ima_must_appraise(inode, MAY_ACCESS, IMA_FILE_CHECK);
if (!must_appraise)
return;
@@ -474,12 +474,12 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id)
}
static const int read_idmap[READING_MAX_ID] = {
- [READING_FIRMWARE] = FIRMWARE_CHECK,
- [READING_FIRMWARE_PREALLOC_BUFFER] = FIRMWARE_CHECK,
- [READING_MODULE] = MODULE_CHECK,
- [READING_KEXEC_IMAGE] = KEXEC_KERNEL_CHECK,
- [READING_KEXEC_INITRAMFS] = KEXEC_INITRAMFS_CHECK,
- [READING_POLICY] = POLICY_CHECK
+ [READING_FIRMWARE] = IMA_FIRMWARE_CHECK,
+ [READING_FIRMWARE_PREALLOC_BUFFER] = IMA_FIRMWARE_CHECK,
+ [READING_MODULE] = IMA_MODULE_CHECK,
+ [READING_KEXEC_IMAGE] = IMA_KEXEC_KERNEL_CHECK,
+ [READING_KEXEC_INITRAMFS] = IMA_KEXEC_INITRAMFS_CHECK,
+ [READING_POLICY] = IMA_POLICY_CHECK
};
/**
@@ -520,7 +520,7 @@ int ima_post_read_file(struct file *file, void *buf, loff_t size,
return 0;
}
- func = read_idmap[read_id] ?: FILE_CHECK;
+ func = read_idmap[read_id] ?: IMA_FILE_CHECK;
security_task_getsecid(current, &secid);
return process_measurement(file, current_cred(), secid, buf, size,
MAY_READ, func);
@@ -112,31 +112,31 @@ static struct ima_rule_entry dont_measure_rules[] __ro_after_init = {
};
static struct ima_rule_entry original_measurement_rules[] __ro_after_init = {
- {.action = MEASURE, .func = MMAP_CHECK, .mask = MAY_EXEC,
+ {.action = MEASURE, .func = IMA_MMAP_CHECK, .mask = MAY_EXEC,
.flags = IMA_FUNC | IMA_MASK},
- {.action = MEASURE, .func = BPRM_CHECK, .mask = MAY_EXEC,
+ {.action = MEASURE, .func = IMA_BPRM_CHECK, .mask = MAY_EXEC,
.flags = IMA_FUNC | IMA_MASK},
- {.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ,
+ {.action = MEASURE, .func = IMA_FILE_CHECK, .mask = MAY_READ,
.uid = GLOBAL_ROOT_UID, .uid_op = &uid_eq,
.flags = IMA_FUNC | IMA_MASK | IMA_UID},
- {.action = MEASURE, .func = MODULE_CHECK, .flags = IMA_FUNC},
- {.action = MEASURE, .func = FIRMWARE_CHECK, .flags = IMA_FUNC},
+ {.action = MEASURE, .func = IMA_MODULE_CHECK, .flags = IMA_FUNC},
+ {.action = MEASURE, .func = IMA_FIRMWARE_CHECK, .flags = IMA_FUNC},
};
static struct ima_rule_entry default_measurement_rules[] __ro_after_init = {
- {.action = MEASURE, .func = MMAP_CHECK, .mask = MAY_EXEC,
+ {.action = MEASURE, .func = IMA_MMAP_CHECK, .mask = MAY_EXEC,
.flags = IMA_FUNC | IMA_MASK},
- {.action = MEASURE, .func = BPRM_CHECK, .mask = MAY_EXEC,
+ {.action = MEASURE, .func = IMA_BPRM_CHECK, .mask = MAY_EXEC,
.flags = IMA_FUNC | IMA_MASK},
- {.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ,
+ {.action = MEASURE, .func = IMA_FILE_CHECK, .mask = MAY_READ,
.uid = GLOBAL_ROOT_UID, .uid_op = &uid_eq,
.flags = IMA_FUNC | IMA_INMASK | IMA_EUID},
- {.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ,
+ {.action = MEASURE, .func = IMA_FILE_CHECK, .mask = MAY_READ,
.uid = GLOBAL_ROOT_UID, .uid_op = &uid_eq,
.flags = IMA_FUNC | IMA_INMASK | IMA_UID},
- {.action = MEASURE, .func = MODULE_CHECK, .flags = IMA_FUNC},
- {.action = MEASURE, .func = FIRMWARE_CHECK, .flags = IMA_FUNC},
- {.action = MEASURE, .func = POLICY_CHECK, .flags = IMA_FUNC},
+ {.action = MEASURE, .func = IMA_MODULE_CHECK, .flags = IMA_FUNC},
+ {.action = MEASURE, .func = IMA_FIRMWARE_CHECK, .flags = IMA_FUNC},
+ {.action = MEASURE, .func = IMA_POLICY_CHECK, .flags = IMA_FUNC},
};
static struct ima_rule_entry default_appraise_rules[] __ro_after_init = {
@@ -155,7 +155,7 @@ static struct ima_rule_entry default_appraise_rules[] __ro_after_init = {
{.action = DONT_APPRAISE, .fsmagic = CGROUP_SUPER_MAGIC, .flags = IMA_FSMAGIC},
{.action = DONT_APPRAISE, .fsmagic = CGROUP2_SUPER_MAGIC, .flags = IMA_FSMAGIC},
#ifdef CONFIG_IMA_WRITE_POLICY
- {.action = APPRAISE, .func = POLICY_CHECK,
+ {.action = APPRAISE, .func = IMA_POLICY_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
#endif
#ifndef CONFIG_IMA_APPRAISE_SIGNED_INIT
@@ -170,31 +170,31 @@ static struct ima_rule_entry default_appraise_rules[] __ro_after_init = {
static struct ima_rule_entry build_appraise_rules[] __ro_after_init = {
#ifdef CONFIG_IMA_APPRAISE_REQUIRE_MODULE_SIGS
- {.action = APPRAISE, .func = MODULE_CHECK,
+ {.action = APPRAISE, .func = IMA_MODULE_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
#endif
#ifdef CONFIG_IMA_APPRAISE_REQUIRE_FIRMWARE_SIGS
- {.action = APPRAISE, .func = FIRMWARE_CHECK,
+ {.action = APPRAISE, .func = IMA_FIRMWARE_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
#endif
#ifdef CONFIG_IMA_APPRAISE_REQUIRE_KEXEC_SIGS
- {.action = APPRAISE, .func = KEXEC_KERNEL_CHECK,
+ {.action = APPRAISE, .func = IMA_KEXEC_KERNEL_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
#endif
#ifdef CONFIG_IMA_APPRAISE_REQUIRE_POLICY_SIGS
- {.action = APPRAISE, .func = POLICY_CHECK,
+ {.action = APPRAISE, .func = IMA_POLICY_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
#endif
};
static struct ima_rule_entry secure_boot_rules[] __ro_after_init = {
- {.action = APPRAISE, .func = MODULE_CHECK,
+ {.action = APPRAISE, .func = IMA_MODULE_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
- {.action = APPRAISE, .func = FIRMWARE_CHECK,
+ {.action = APPRAISE, .func = IMA_FIRMWARE_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
- {.action = APPRAISE, .func = KEXEC_KERNEL_CHECK,
+ {.action = APPRAISE, .func = IMA_KEXEC_KERNEL_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
- {.action = APPRAISE, .func = POLICY_CHECK,
+ {.action = APPRAISE, .func = IMA_POLICY_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
};
@@ -292,13 +292,13 @@ static bool ima_match_rules(struct ima_rule_entry *rule, struct inode *inode,
int i;
if ((rule->flags & IMA_FUNC) &&
- (rule->func != func && func != POST_SETATTR))
+ (rule->func != func && func != IMA_POST_SETATTR))
return false;
if ((rule->flags & IMA_MASK) &&
- (rule->mask != mask && func != POST_SETATTR))
+ (rule->mask != mask && func != IMA_POST_SETATTR))
return false;
if ((rule->flags & IMA_INMASK) &&
- (!(rule->mask & mask) && func != POST_SETATTR))
+ (!(rule->mask & mask) && func != IMA_POST_SETATTR))
return false;
if ((rule->flags & IMA_FSMAGIC)
&& rule->fsmagic != inode->i_sb->s_magic)
@@ -373,16 +373,16 @@ static int get_subaction(struct ima_rule_entry *rule, enum ima_hooks func)
return IMA_FILE_APPRAISE;
switch (func) {
- case MMAP_CHECK:
+ case IMA_MMAP_CHECK:
return IMA_MMAP_APPRAISE;
- case BPRM_CHECK:
+ case IMA_BPRM_CHECK:
return IMA_BPRM_APPRAISE;
- case CREDS_CHECK:
+ case IMA_CREDS_CHECK:
return IMA_CREDS_APPRAISE;
- case FILE_CHECK:
- case POST_SETATTR:
+ case IMA_FILE_CHECK:
+ case IMA_POST_SETATTR:
return IMA_FILE_APPRAISE;
- case MODULE_CHECK ... MAX_CHECK - 1:
+ case IMA_MODULE_CHECK ... IMA_MAX_CHECK - 1:
default:
return IMA_READ_APPRAISE;
}
@@ -468,13 +468,13 @@ void ima_update_policy_flag(void)
static int ima_appraise_flag(enum ima_hooks func)
{
- if (func == MODULE_CHECK)
+ if (func == IMA_MODULE_CHECK)
return IMA_APPRAISE_MODULES;
- else if (func == FIRMWARE_CHECK)
+ else if (func == IMA_FIRMWARE_CHECK)
return IMA_APPRAISE_FIRMWARE;
- else if (func == POLICY_CHECK)
+ else if (func == IMA_POLICY_CHECK)
return IMA_APPRAISE_POLICY;
- else if (func == KEXEC_KERNEL_CHECK)
+ else if (func == IMA_KEXEC_KERNEL_CHECK)
return IMA_APPRAISE_KEXEC;
return 0;
}
@@ -500,7 +500,7 @@ static void add_rules(struct ima_rule_entry *entries, int count,
}
if (entries[i].action == APPRAISE)
temp_ima_appraise |= ima_appraise_flag(entries[i].func);
- if (entries[i].func == POLICY_CHECK)
+ if (entries[i].func == IMA_POLICY_CHECK)
temp_ima_appraise |= IMA_APPRAISE_POLICY;
}
}
@@ -846,29 +846,29 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
result = -EINVAL;
if (strcmp(args[0].from, "FILE_CHECK") == 0)
- entry->func = FILE_CHECK;
+ entry->func = IMA_FILE_CHECK;
/* PATH_CHECK is for backwards compat */
else if (strcmp(args[0].from, "PATH_CHECK") == 0)
- entry->func = FILE_CHECK;
+ entry->func = IMA_FILE_CHECK;
else if (strcmp(args[0].from, "MODULE_CHECK") == 0)
- entry->func = MODULE_CHECK;
+ entry->func = IMA_MODULE_CHECK;
else if (strcmp(args[0].from, "FIRMWARE_CHECK") == 0)
- entry->func = FIRMWARE_CHECK;
+ entry->func = IMA_FIRMWARE_CHECK;
else if ((strcmp(args[0].from, "FILE_MMAP") == 0)
|| (strcmp(args[0].from, "MMAP_CHECK") == 0))
- entry->func = MMAP_CHECK;
+ entry->func = IMA_MMAP_CHECK;
else if (strcmp(args[0].from, "BPRM_CHECK") == 0)
- entry->func = BPRM_CHECK;
+ entry->func = IMA_BPRM_CHECK;
else if (strcmp(args[0].from, "CREDS_CHECK") == 0)
- entry->func = CREDS_CHECK;
+ entry->func = IMA_CREDS_CHECK;
else if (strcmp(args[0].from, "KEXEC_KERNEL_CHECK") ==
0)
- entry->func = KEXEC_KERNEL_CHECK;
+ entry->func = IMA_KEXEC_KERNEL_CHECK;
else if (strcmp(args[0].from, "KEXEC_INITRAMFS_CHECK")
== 0)
- entry->func = KEXEC_INITRAMFS_CHECK;
+ entry->func = IMA_KEXEC_INITRAMFS_CHECK;
else if (strcmp(args[0].from, "POLICY_CHECK") == 0)
- entry->func = POLICY_CHECK;
+ entry->func = IMA_POLICY_CHECK;
else
result = -EINVAL;
if (!result)
@@ -1194,7 +1194,7 @@ void ima_policy_stop(struct seq_file *m, void *v)
*/
static void policy_func_show(struct seq_file *m, enum ima_hooks func)
{
- if (func > 0 && func < MAX_CHECK)
+ if (func > 0 && func < IMA_MAX_CHECK)
seq_printf(m, "func=%s ", func_tokens[func]);
else
seq_printf(m, "func=%d ", func);
Commit a893ea15d764 ("tpm: move tpm_chip definition to include/linux/tpm.h") introduced a build error when both ima and efi is enabled. What happens is that both headers (ima.h and efi.h) defines the same 'NONE' constant, and it broke when they started getting included from the same file. In file included from ../security/integrity/ima/ima_fs.c:30: ../security/integrity/ima/ima.h:176:7: error: redeclaration of enumerator "NONE" hook(NONE) \ ^~~~ ../security/integrity/ima/ima.h:188:34: note: in definition of macro "__ima_hook_enumify" #define __ima_hook_enumify(ENUM) ENUM, ^~~~ ../security/integrity/ima/ima.h:191:2: note: in expansion of macro "__ima_hooks" __ima_hooks(__ima_hook_enumify) ^~~~~~~~~~~ In file included from ../arch/arm64/include/asm/acpi.h:15, from ../include/acpi/acpi_io.h:7, from ../include/linux/acpi.h:47, from ../include/linux/tpm.h:26, from ../security/integrity/ima/ima.h:25, from ../security/integrity/ima/ima_fs.c:30: ../include/linux/efi.h:1723:2: note: previous definition of "NONE" was here NONE, ^~~~ make[4]: *** [../scripts/Makefile.build:277: security/integrity/ima/ima_fs.o] Error 1 Rework to prefix the ima enum with 'IMA_*'. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> --- Changes against v1: - removed inadvertent ABI change pointed out by Andy but kept his reviewed-by tag for the rest security/integrity/ima/ima.h | 24 +++---- security/integrity/ima/ima_api.c | 3 +- security/integrity/ima/ima_appraise.c | 40 ++++++------ security/integrity/ima/ima_main.c | 30 ++++----- security/integrity/ima/ima_policy.c | 92 +++++++++++++-------------- 5 files changed, 95 insertions(+), 94 deletions(-) -- 2.20.1