From fadcdb451632d32d7c0d4c71df9ac2d3b7ae2348 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 22 Feb 2007 18:11:31 -0500 Subject: [PATCH] Reassign printk levels in selinux kernel code Below is a patch which demotes many printk lines to KERN_DEBUG from KERN_INFO. It should help stop the spamming of logs with messages in which users are not interested nor is there any action that users should take. It also promotes some KERN_INFO to KERN_ERR such as when there are improper attempts to register/unregister security modules. A similar patch was discussed a while back on list: http://marc.theaimsgroup.com/?t=116656343500003&r=1&w=2 This patch addresses almost all of the issues raised. I believe the only advice not taken was in the demoting of messages related to undefined permissions and classes. Signed-off-by: Eric Paris Acked-by: Stephen Smalley security/selinux/hooks.c | 20 ++++++++++---------- security/selinux/ss/avtab.c | 2 +- security/selinux/ss/policydb.c | 6 +++--- security/selinux/ss/sidtab.c | 2 +- 4 files changed, 15 insertions(+), 15 deletions(-) Signed-off-by: James Morris --- security/selinux/hooks.c | 24 ++++++++++++------------ security/selinux/ss/avtab.c | 2 +- security/selinux/ss/policydb.c | 6 +++--- security/selinux/ss/sidtab.c | 2 +- 4 files changed, 17 insertions(+), 17 deletions(-) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index b1ac22d2319..19a385e9968 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -653,11 +653,11 @@ static int superblock_doinit(struct super_block *sb, void *data) sbsec->initialized = 1; if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors)) { - printk(KERN_INFO "SELinux: initialized (dev %s, type %s), unknown behavior\n", + printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n", sb->s_id, sb->s_type->name); } else { - printk(KERN_INFO "SELinux: initialized (dev %s, type %s), %s\n", + printk(KERN_DEBUG "SELinux: initialized (dev %s, type %s), %s\n", sb->s_id, sb->s_type->name, labeling_behaviors[sbsec->behavior-1]); } @@ -4434,7 +4434,7 @@ static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag) static int selinux_register_security (const char *name, struct security_operations *ops) { if (secondary_ops != original_ops) { - printk(KERN_INFO "%s: There is already a secondary security " + printk(KERN_ERR "%s: There is already a secondary security " "module registered.\n", __FUNCTION__); return -EINVAL; } @@ -4451,7 +4451,7 @@ static int selinux_register_security (const char *name, struct security_operatio static int selinux_unregister_security (const char *name, struct security_operations *ops) { if (ops != secondary_ops) { - printk (KERN_INFO "%s: trying to unregister a security module " + printk(KERN_ERR "%s: trying to unregister a security module " "that is not registered.\n", __FUNCTION__); return -EINVAL; } @@ -4889,9 +4889,9 @@ static __init int selinux_init(void) panic("SELinux: Unable to register with kernel.\n"); if (selinux_enforcing) { - printk(KERN_INFO "SELinux: Starting in enforcing mode\n"); + printk(KERN_DEBUG "SELinux: Starting in enforcing mode\n"); } else { - printk(KERN_INFO "SELinux: Starting in permissive mode\n"); + printk(KERN_DEBUG "SELinux: Starting in permissive mode\n"); } #ifdef CONFIG_KEYS @@ -4907,10 +4907,10 @@ static __init int selinux_init(void) void selinux_complete_init(void) { - printk(KERN_INFO "SELinux: Completing initialization.\n"); + printk(KERN_DEBUG "SELinux: Completing initialization.\n"); /* Set up any superblocks initialized prior to the policy load. */ - printk(KERN_INFO "SELinux: Setting up existing superblocks.\n"); + printk(KERN_DEBUG "SELinux: Setting up existing superblocks.\n"); spin_lock(&sb_lock); spin_lock(&sb_security_lock); next_sb: @@ -4968,9 +4968,9 @@ static int __init selinux_nf_ip_init(void) if (!selinux_enabled) goto out; - - printk(KERN_INFO "SELinux: Registering netfilter hooks\n"); - + + printk(KERN_DEBUG "SELinux: Registering netfilter hooks\n"); + err = nf_register_hook(&selinux_ipv4_op); if (err) panic("SELinux: nf_register_hook for IPv4: error %d\n", err); @@ -4992,7 +4992,7 @@ __initcall(selinux_nf_ip_init); #ifdef CONFIG_SECURITY_SELINUX_DISABLE static void selinux_nf_ip_exit(void) { - printk(KERN_INFO "SELinux: Unregistering netfilter hooks\n"); + printk(KERN_DEBUG "SELinux: Unregistering netfilter hooks\n"); nf_unregister_hook(&selinux_ipv4_op); #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c index 9142073319c..3122908afdc 100644 --- a/security/selinux/ss/avtab.c +++ b/security/selinux/ss/avtab.c @@ -277,7 +277,7 @@ void avtab_hash_eval(struct avtab *h, char *tag) } } - printk(KERN_INFO "%s: %d entries and %d/%d buckets used, longest " + printk(KERN_DEBUG "%s: %d entries and %d/%d buckets used, longest " "chain length %d\n", tag, h->nel, slots_used, AVTAB_SIZE, max_chain_len); } diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index cd79c6338aa..0ac1021734c 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -374,7 +374,7 @@ static void symtab_hash_eval(struct symtab *s) struct hashtab_info info; hashtab_stat(h, &info); - printk(KERN_INFO "%s: %d entries and %d/%d buckets used, " + printk(KERN_DEBUG "%s: %d entries and %d/%d buckets used, " "longest chain length %d\n", symtab_name[i], h->nel, info.slots_used, h->size, info.max_chain_len); } @@ -391,14 +391,14 @@ static int policydb_index_others(struct policydb *p) { int i, rc = 0; - printk(KERN_INFO "security: %d users, %d roles, %d types, %d bools", + printk(KERN_DEBUG "security: %d users, %d roles, %d types, %d bools", p->p_users.nprim, p->p_roles.nprim, p->p_types.nprim, p->p_bools.nprim); if (selinux_mls_enabled) printk(", %d sens, %d cats", p->p_levels.nprim, p->p_cats.nprim); printk("\n"); - printk(KERN_INFO "security: %d classes, %d rules\n", + printk(KERN_DEBUG "security: %d classes, %d rules\n", p->p_classes.nprim, p->te_avtab.nel); #ifdef DEBUG_HASHES diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c index d78f9ff30da..53a54a77f1f 100644 --- a/security/selinux/ss/sidtab.c +++ b/security/selinux/ss/sidtab.c @@ -253,7 +253,7 @@ void sidtab_hash_eval(struct sidtab *h, char *tag) } } - printk(KERN_INFO "%s: %d entries and %d/%d buckets used, longest " + printk(KERN_DEBUG "%s: %d entries and %d/%d buckets used, longest " "chain length %d\n", tag, h->nel, slots_used, SIDTAB_SIZE, max_chain_len); } -- 2.41.1