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| author | Christian Göttsche <cgzones@googlemail.com> | 2023-07-18 20:49:19 +0200 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2023-07-20 16:21:52 -0400 |
| commit | 55a0e73806ec64279ea31d57b2116672631696a8 (patch) | |
| tree | e99f2602e088d8551a9438c801e060bb7d822405 | |
| parent | dd51fcd42fd6bf37608f54303b974b47f73c1490 (diff) | |
| download | linux-stable-55a0e73806ec64279ea31d57b2116672631696a8.tar.gz linux-stable-55a0e73806ec64279ea31d57b2116672631696a8.tar.bz2 linux-stable-55a0e73806ec64279ea31d57b2116672631696a8.zip | |
selinux: introduce SECURITY_SELINUX_DEBUG configuration
The policy database code contains several debug output statements
related to hashtable utilization. Those are guarded by the macro
DEBUG_HASHES, which is neither documented nor set anywhere.
Introduce a new Kconfig configuration guarding this and potential
other future debugging related code. Disable the setting by default.
Suggested-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
[PM: fixed line lengths in the help text]
Signed-off-by: Paul Moore <paul@paul-moore.com>
| -rw-r--r-- | security/selinux/Kconfig | 9 | ||||
| -rw-r--r-- | security/selinux/ss/policydb.c | 8 |
2 files changed, 13 insertions, 4 deletions
diff --git a/security/selinux/Kconfig b/security/selinux/Kconfig index c275115b5088..d30348fbe0df 100644 --- a/security/selinux/Kconfig +++ b/security/selinux/Kconfig @@ -68,3 +68,12 @@ config SECURITY_SELINUX_SID2STR_CACHE_SIZE conversion. Setting this option to 0 disables the cache completely. If unsure, keep the default value. + +config SECURITY_SELINUX_DEBUG + bool "SELinux kernel debugging support" + depends on SECURITY_SELINUX + default n + help + This enables debugging code designed to help SELinux kernel + developers, unless you know what this does in the kernel code you + should leave this disabled. diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index b903a4dfdce1..dc66868ff62c 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -41,7 +41,7 @@ #include "mls.h" #include "services.h" -#ifdef DEBUG_HASHES +#ifdef CONFIG_SECURITY_SELINUX_DEBUG static const char *const symtab_name[SYM_NUM] = { "common prefixes", "classes", @@ -678,7 +678,7 @@ static int (*const index_f[SYM_NUM]) (void *key, void *datum, void *datap) = { cat_index, }; -#ifdef DEBUG_HASHES +#ifdef CONFIG_SECURITY_SELINUX_DEBUG static void hash_eval(struct hashtab *h, const char *hash_name) { struct hashtab_info info; @@ -701,7 +701,7 @@ static void symtab_hash_eval(struct symtab *s) static inline void hash_eval(struct hashtab *h, const char *hash_name) { } -#endif +#endif /* CONFIG_SECURITY_SELINUX_DEBUG */ /* * Define the other val_to_name and val_to_struct arrays @@ -725,7 +725,7 @@ static int policydb_index(struct policydb *p) pr_debug("SELinux: %d classes, %d rules\n", p->p_classes.nprim, p->te_avtab.nel); -#ifdef DEBUG_HASHES +#ifdef CONFIG_SECURITY_SELINUX_DEBUG avtab_hash_eval(&p->te_avtab, "rules"); symtab_hash_eval(p->symtab); #endif |