diff options
| author | Christian Göttsche <cgzones@googlemail.com> | 2022-02-17 15:18:57 +0100 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2022-05-13 14:51:06 -0400 |
| commit | 1af0e4a0233fea7e8226cb977d379dc20f9bbe11 (patch) | |
| tree | b8f66a9f9847db2187757f50ae0c999b09e8caae | |
| parent | c29722fad4aabbf6bb841b8f058f858ec911df56 (diff) | |
security: declare member holding string literal const
The struct security_hook_list member lsm is assigned in
security_add_hooks() with string literals passed from the individual
security modules. Declare the function parameter and the struct member
const to signal their immutability.
Reported by Clang [-Wwrite-strings]:
security/selinux/hooks.c:7388:63: error: passing 'const char [8]'
to parameter of type 'char *' discards qualifiers
[-Werror,-Wincompatible-pointer-types-discards-qualifiers]
security_add_hooks(selinux_hooks,
ARRAY_SIZE(selinux_hooks), selinux);
^~~~~~~~~
./include/linux/lsm_hooks.h:1629:11: note: passing argument to
parameter 'lsm' here
char *lsm);
^
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
| -rw-r--r-- | include/linux/lsm_hooks.h | 4 | ||||
| -rw-r--r-- | security/security.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 419b5febc3ca..47cdf3fbecef 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1595,7 +1595,7 @@ struct security_hook_list { struct hlist_node list; struct hlist_head *head; union security_list_options hook; - char *lsm; + const char *lsm; } __randomize_layout; /* @@ -1630,7 +1630,7 @@ extern struct security_hook_heads security_hook_heads; extern char *lsm_names; extern void security_add_hooks(struct security_hook_list *hooks, int count, - char *lsm); + const char *lsm); #define LSM_FLAG_LEGACY_MAJOR BIT(0) #define LSM_FLAG_EXCLUSIVE BIT(1) diff --git a/security/security.c b/security/security.c index b7cf5cbfdc67..985afd150dd6 100644 --- a/security/security.c +++ b/security/security.c @@ -478,7 +478,7 @@ static int lsm_append(const char *new, char **result) * Each LSM has to register its hooks with the infrastructure. */ void __init security_add_hooks(struct security_hook_list *hooks, int count, - char *lsm) + const char *lsm) { int i; |