Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Pkey table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * SELinux must keep a mapping of Infinband PKEYs to labels/SIDs.  This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * mapping is maintained as part of the normal policy but a fast cache is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * needed to reduce the lookup overhead.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * This code is heavily based on the "netif" and "netport" concept originally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * developed by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * James Morris <jmorris@redhat.com> and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * Paul Moore <paul@paul-moore.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  *   (see security/selinux/netif.c and security/selinux/netport.c for more
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  *   information)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * (c) Mellanox Technologies, 2016
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/rcupdate.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include "ibpkey.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include "objsec.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define SEL_PKEY_HASH_SIZE       256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define SEL_PKEY_HASH_BKT_LIMIT   16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) struct sel_ib_pkey_bkt {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	int size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) struct sel_ib_pkey {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	struct pkey_security_struct psec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static LIST_HEAD(sel_ib_pkey_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) static DEFINE_SPINLOCK(sel_ib_pkey_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static struct sel_ib_pkey_bkt sel_ib_pkey_hash[SEL_PKEY_HASH_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  * sel_ib_pkey_hashfn - Hashing function for the pkey table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  * @pkey: pkey number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  * This is the hashing function for the pkey table, it returns the bucket
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  * number for the given pkey.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) static unsigned int sel_ib_pkey_hashfn(u16 pkey)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	return (pkey & (SEL_PKEY_HASH_SIZE - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62)  * sel_ib_pkey_find - Search for a pkey record
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  * @subnet_prefix: subnet_prefix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  * @pkey_num: pkey_num
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  * Search the pkey table and return the matching record.  If an entry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68)  * can not be found in the table return NULL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) static struct sel_ib_pkey *sel_ib_pkey_find(u64 subnet_prefix, u16 pkey_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	unsigned int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	struct sel_ib_pkey *pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	idx = sel_ib_pkey_hashfn(pkey_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	list_for_each_entry_rcu(pkey, &sel_ib_pkey_hash[idx].list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		if (pkey->psec.pkey == pkey_num &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		    pkey->psec.subnet_prefix == subnet_prefix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 			return pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87)  * sel_ib_pkey_insert - Insert a new pkey into the table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88)  * @pkey: the new pkey record
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90)  * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91)  * Add a new pkey record to the hash table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) static void sel_ib_pkey_insert(struct sel_ib_pkey *pkey)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	unsigned int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	/* we need to impose a limit on the growth of the hash table so check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	 * this bucket to make sure it is within the specified bounds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	idx = sel_ib_pkey_hashfn(pkey->psec.pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	list_add_rcu(&pkey->list, &sel_ib_pkey_hash[idx].list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	if (sel_ib_pkey_hash[idx].size == SEL_PKEY_HASH_BKT_LIMIT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		struct sel_ib_pkey *tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		tail = list_entry(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 			rcu_dereference_protected(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 				sel_ib_pkey_hash[idx].list.prev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 				lockdep_is_held(&sel_ib_pkey_lock)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 			struct sel_ib_pkey, list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		list_del_rcu(&tail->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		kfree_rcu(tail, rcu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		sel_ib_pkey_hash[idx].size++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)  * sel_ib_pkey_sid_slow - Lookup the SID of a pkey using the policy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)  * @subnet_prefix: subnet prefix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)  * @pkey_num: pkey number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)  * @sid: pkey SID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)  * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)  * This function determines the SID of a pkey by querying the security
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)  * policy.  The result is added to the pkey table to speedup future
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)  * queries.  Returns zero on success, negative values on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static int sel_ib_pkey_sid_slow(u64 subnet_prefix, u16 pkey_num, u32 *sid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	struct sel_ib_pkey *pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct sel_ib_pkey *new = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	spin_lock_irqsave(&sel_ib_pkey_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	pkey = sel_ib_pkey_find(subnet_prefix, pkey_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (pkey) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		*sid = pkey->psec.sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		spin_unlock_irqrestore(&sel_ib_pkey_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	ret = security_ib_pkey_sid(&selinux_state, subnet_prefix, pkey_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 				   sid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	/* If this memory allocation fails still return 0. The SID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	 * is valid, it just won't be added to the cache.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	new = kzalloc(sizeof(*new), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	if (!new) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	new->psec.subnet_prefix = subnet_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	new->psec.pkey = pkey_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	new->psec.sid = *sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	sel_ib_pkey_insert(new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	spin_unlock_irqrestore(&sel_ib_pkey_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)  * sel_ib_pkey_sid - Lookup the SID of a PKEY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)  * @subnet_prefix: subnet_prefix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)  * @pkey_num: pkey number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)  * @sid: pkey SID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)  * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)  * This function determines the SID of a PKEY using the fastest method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)  * possible.  First the pkey table is queried, but if an entry can't be found
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)  * then the policy is queried and the result is added to the table to speedup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)  * future queries.  Returns zero on success, negative values on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey_num, u32 *sid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	struct sel_ib_pkey *pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	rcu_read_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	pkey = sel_ib_pkey_find(subnet_prefix, pkey_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	if (pkey) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		*sid = pkey->psec.sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	return sel_ib_pkey_sid_slow(subnet_prefix, pkey_num, sid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)  * sel_ib_pkey_flush - Flush the entire pkey table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)  * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)  * Remove all entries from the pkey table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) void sel_ib_pkey_flush(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	unsigned int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	struct sel_ib_pkey *pkey, *pkey_tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	spin_lock_irqsave(&sel_ib_pkey_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	for (idx = 0; idx < SEL_PKEY_HASH_SIZE; idx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		list_for_each_entry_safe(pkey, pkey_tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 					 &sel_ib_pkey_hash[idx].list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 			list_del_rcu(&pkey->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			kfree_rcu(pkey, rcu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		sel_ib_pkey_hash[idx].size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	spin_unlock_irqrestore(&sel_ib_pkey_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static __init int sel_ib_pkey_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	int iter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	if (!selinux_enabled_boot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	for (iter = 0; iter < SEL_PKEY_HASH_SIZE; iter++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		INIT_LIST_HEAD(&sel_ib_pkey_hash[iter].list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		sel_ib_pkey_hash[iter].size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) subsys_initcall(sel_ib_pkey_init);