diff options
25 files changed, 144 insertions, 115 deletions
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h index 17d02eda9538..97a8b21eb033 100644 --- a/include/linux/lsm_audit.h +++ b/include/linux/lsm_audit.h @@ -76,6 +76,7 @@ struct common_audit_data { #define LSM_AUDIT_DATA_IBENDPORT 14 #define LSM_AUDIT_DATA_LOCKDOWN 15 #define LSM_AUDIT_DATA_NOTIFICATION 16 +#define LSM_AUDIT_DATA_ANONINODE 17 union { struct path path; struct dentry *dentry; @@ -96,6 +97,7 @@ struct common_audit_data { struct lsm_ibpkey_audit *ibpkey; struct lsm_ibendport_audit *ibendport; int reason; + const char *anonclass; } u; /* this union contains LSM specific data */ union { 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/scripts/selinux/genheaders/genheaders.c b/scripts/selinux/genheaders/genheaders.c index f355b3e0e968..15520806889e 100644 --- a/scripts/selinux/genheaders/genheaders.c +++ b/scripts/selinux/genheaders/genheaders.c @@ -59,35 +59,27 @@ int main(int argc, char *argv[]) exit(2); } - for (i = 0; secclass_map[i].name; i++) { - struct security_class_mapping *map = &secclass_map[i]; - map->name = stoupperx(map->name); - for (j = 0; map->perms[j]; j++) - map->perms[j] = stoupperx(map->perms[j]); - } - - isids_len = sizeof(initial_sid_to_string) / sizeof (char *); - for (i = 1; i < isids_len; i++) { - const char *s = initial_sid_to_string[i]; - - if (s) - initial_sid_to_string[i] = stoupperx(s); - } - fprintf(fout, "/* This file is automatically generated. Do not edit. */\n"); fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n"); for (i = 0; secclass_map[i].name; i++) { - struct security_class_mapping *map = &secclass_map[i]; - fprintf(fout, "#define SECCLASS_%-39s %2d\n", map->name, i+1); + char *name = stoupperx(secclass_map[i].name); + + fprintf(fout, "#define SECCLASS_%-39s %2d\n", name, i+1); + free(name); } fprintf(fout, "\n"); + isids_len = sizeof(initial_sid_to_string) / sizeof(char *); for (i = 1; i < isids_len; i++) { const char *s = initial_sid_to_string[i]; - if (s) - fprintf(fout, "#define SECINITSID_%-39s %2d\n", s, i); + if (s) { + char *sidname = stoupperx(s); + + fprintf(fout, "#define SECINITSID_%-39s %2d\n", sidname, i); + free(sidname); + } } fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1); fprintf(fout, "\nstatic inline bool security_is_socket_class(u16 kern_tclass)\n"); @@ -96,10 +88,14 @@ int main(int argc, char *argv[]) fprintf(fout, "\tswitch (kern_tclass) {\n"); for (i = 0; secclass_map[i].name; i++) { static char s[] = "SOCKET"; - struct security_class_mapping *map = &secclass_map[i]; - int len = strlen(map->name), l = sizeof(s) - 1; - if (len >= l && memcmp(map->name + len - l, s, l) == 0) - fprintf(fout, "\tcase SECCLASS_%s:\n", map->name); + int len, l; + char *name = stoupperx(secclass_map[i].name); + + len = strlen(name); + l = sizeof(s) - 1; + if (len >= l && memcmp(name + len - l, s, l) == 0) + fprintf(fout, "\tcase SECCLASS_%s:\n", name); + free(name); } fprintf(fout, "\t\tsock = true;\n"); fprintf(fout, "\t\tbreak;\n"); @@ -110,33 +106,52 @@ int main(int argc, char *argv[]) fprintf(fout, "}\n"); fprintf(fout, "\n#endif\n"); - fclose(fout); + + if (fclose(fout) != 0) { + fprintf(stderr, "Could not successfully close %s: %s\n", + argv[1], strerror(errno)); + exit(4); + } fout = fopen(argv[2], "w"); if (!fout) { fprintf(stderr, "Could not open %s for writing: %s\n", argv[2], strerror(errno)); - exit(4); + exit(5); } fprintf(fout, "/* This file is automatically generated. Do not edit. */\n"); fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n"); for (i = 0; secclass_map[i].name; i++) { - struct security_class_mapping *map = &secclass_map[i]; - int len = strlen(map->name); + const struct security_class_mapping *map = &secclass_map[i]; + int len; + char *name = stoupperx(map->name); + + len = strlen(name); for (j = 0; map->perms[j]; j++) { + char *permname; + if (j >= 32) { fprintf(stderr, "Too many permissions to fit into an access vector at (%s, %s).\n", map->name, map->perms[j]); exit(5); } - fprintf(fout, "#define %s__%-*s 0x%08xU\n", map->name, - 39-len, map->perms[j], 1U<<j); + permname = stoupperx(map->perms[j]); + fprintf(fout, "#define %s__%-*s 0x%08xU\n", name, + 39-len, permname, 1U<<j); + free(permname); } + free(name); } fprintf(fout, "\n#endif\n"); - fclose(fout); + + if (fclose(fout) != 0) { + fprintf(stderr, "Could not successfully close %s: %s\n", + argv[2], strerror(errno)); + exit(6); + } + exit(0); } diff --git a/scripts/selinux/mdp/mdp.c b/scripts/selinux/mdp/mdp.c index 105c1c31a316..1415604c3d24 100644 --- a/scripts/selinux/mdp/mdp.c +++ b/scripts/selinux/mdp/mdp.c @@ -82,7 +82,7 @@ int main(int argc, char *argv[]) /* print out the class permissions */ for (i = 0; secclass_map[i].name; i++) { - struct security_class_mapping *map = &secclass_map[i]; + const struct security_class_mapping *map = &secclass_map[i]; fprintf(fout, "class %s\n", map->name); fprintf(fout, "{\n"); for (j = 0; map->perms[j]; j++) @@ -103,7 +103,7 @@ int main(int argc, char *argv[]) #define SYSTEMLOW "s0" #define SYSTEMHIGH "s1:c0.c1" for (i = 0; secclass_map[i].name; i++) { - struct security_class_mapping *map = &secclass_map[i]; + const struct security_class_mapping *map = &secclass_map[i]; fprintf(fout, "mlsconstrain %s {\n", map->name); for (j = 0; map->perms[j]; j++) diff --git a/security/lsm_audit.c b/security/lsm_audit.c index 1897cbf6fc69..78a278f28e49 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -433,6 +433,9 @@ static void dump_common_audit_data(struct audit_buffer *ab, audit_log_format(ab, " lockdown_reason=\"%s\"", lockdown_reasons[a->u.reason]); break; + case LSM_AUDIT_DATA_ANONINODE: + audit_log_format(ab, " anonclass=%s", a->u.anonclass); + break; } /* switch (a->type) */ } diff --git a/security/security.c b/security/security.c index 08420c6ff52d..99956d2d29e1 100644 --- a/security/security.c +++ b/security/security.c @@ -479,7 +479,7 @@ 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; diff --git a/security/selinux/avc.c b/security/selinux/avc.c index abcd9740d10f..9a43af0ebd7d 100644 --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -668,7 +668,7 @@ static void avc_audit_pre_callback(struct audit_buffer *ab, void *a) struct common_audit_data *ad = a; struct selinux_audit_data *sad = ad->selinux_audit_data; u32 av = sad->audited; - const char **perms; + const char *const *perms; int i, perm; audit_log_format(ab, "avc: %s ", sad->denied ? "denied" : "granted"); @@ -1059,7 +1059,7 @@ int avc_has_extended_perms(struct selinux_state *state, node = avc_lookup(state->avc, ssid, tsid, tclass); if (unlikely(!node)) { - node = avc_compute_av(state, ssid, tsid, tclass, &avd, xp_node); + avc_compute_av(state, ssid, tsid, tclass, &avd, xp_node); } else { memcpy(&avd, &node->ae.avd, sizeof(avd)); xp_node = node->ae.xp_node; @@ -1151,7 +1151,7 @@ inline int avc_has_perm_noaudit(struct selinux_state *state, node = avc_lookup(state->avc, ssid, tsid, tclass); if (unlikely(!node)) - node = avc_compute_av(state, ssid, tsid, tclass, avd, &xp_node); + avc_compute_av(state, ssid, tsid, tclass, avd, &xp_node); else memcpy(avd, &node->ae.avd, sizeof(*avd)); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index e9e959343de9..beceb89f68d9 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -145,7 +145,7 @@ static int __init checkreqprot_setup(char *str) if (!kstrtoul(str, 0, &checkreqprot)) { selinux_checkreqprot_boot = checkreqprot ? 1 : 0; if (checkreqprot) - pr_warn("SELinux: checkreqprot set to 1 via kernel parameter. This is deprecated and will be rejected in a future kernel release.\n"); + pr_err("SELinux: checkreqprot set to 1 via kernel parameter. This is deprecated and will be rejected in a future kernel release.\n"); } return 1; } @@ -2964,8 +2964,8 @@ static int selinux_inode_init_security_anon(struct inode *inode, * allowed to actually create this type of anonymous inode. */ - ad.type = LSM_AUDIT_DATA_INODE; - ad.u.inode = inode; + ad.type = LSM_AUDIT_DATA_ANONINODE; + ad.u.anonclass = name ? (const char *)name->name : "?"; return avc_has_perm(&selinux_state, tsec->sid, @@ -6487,7 +6487,6 @@ static int selinux_setprocattr(const char *name, void *value, size_t size) goto abort_change; /* Only allow single threaded processes to change context */ - error = -EPERM; if (!current_is_single_threaded()) { error = security_bounded_transition(&selinux_state, tsec->sid, sid); @@ -7294,6 +7293,8 @@ static __init int selinux_init(void) memset(&selinux_state, 0, sizeof(selinux_state)); enforcing_set(&selinux_state, selinux_enforcing_boot); + if (CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE) + pr_err("SELinux: CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE is non-zero. This is deprecated and will be rejected in a future kernel release.\n"); checkreqprot_set(&selinux_state, selinux_checkreqprot_boot); selinux_avc_init(&selinux_state.avc); mutex_init(&selinux_state.status_lock); diff --git a/security/selinux/include/audit.h b/security/selinux/include/audit.h index 073a3d34a0d2..1cba83d17f41 100644 --- a/security/selinux/include/audit.h +++ b/security/selinux/include/audit.h @@ -12,6 +12,9 @@ #ifndef _SELINUX_AUDIT_H #define _SELINUX_AUDIT_H +#include <linux/audit.h> +#include <linux/types.h> + /** * selinux_audit_rule_init - alloc/init an selinux audit rule structure. * @field: the field this rule refers to @@ -51,7 +54,7 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *rule); * @rule: rule to be checked * Returns 1 if there are selinux fields specified in the rule, 0 otherwise. */ -int selinux_audit_rule_known(struct audit_krule *krule); +int selinux_audit_rule_known(struct audit_krule *rule); #endif /* _SELINUX_AUDIT_H */ diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h index 00f78be48283..2b372f98f2d7 100644 --- a/security/selinux/include/avc.h +++ b/security/selinux/include/avc.h @@ -104,6 +104,7 @@ int slow_avc_audit(struct selinux_state *state, /** * avc_audit - Audit the granting or denial of permissions. + * @state: SELinux state * @ssid: source security identifier * @tsid: target security identifier * @tclass: target security class diff --git a/security/selinux/include/avc_ss.h b/security/selinux/include/avc_ss.h index 88c384c5c09e..42912c917fd4 100644 --- a/security/selinux/include/avc_ss.h +++ b/security/selinux/include/avc_ss.h @@ -7,7 +7,7 @@ #ifndef _SELINUX_AVC_SS_H_ #define _SELINUX_AVC_SS_H_ -#include "flask.h" +#include <linux/types.h> struct selinux_avc; int avc_ss_reset(struct selinux_avc *avc, u32 seqno); @@ -18,7 +18,7 @@ struct security_class_mapping { const char *perms[sizeof(u32) * 8 + 1]; }; -extern struct security_class_mapping secclass_map[]; +extern const struct security_class_mapping secclass_map[]; #endif /* _SELINUX_AVC_SS_H_ */ diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h index 35aac62a662e..ff757ae5f253 100644 --- a/security/selinux/include/classmap.h +++ b/security/selinux/include/classmap.h @@ -38,7 +38,7 @@ * Note: The name for any socket class should be suffixed by "socket", * and doesn't contain more than one substr of "socket". */ -struct security_class_mapping secclass_map[] = { +const struct security_class_mapping secclass_map[] = { { "security", { "compute_av", "compute_create", "compute_member", "check_context", "load_policy", "compute_relabel", diff --git a/security/selinux/include/ibpkey.h b/security/selinux/include/ibpkey.h index e6ac1d23320b..c992f83b0aae 100644 --- a/security/selinux/include/ibpkey.h +++ b/security/selinux/include/ibpkey.h @@ -14,6 +14,8 @@ #ifndef _SELINUX_IB_PKEY_H #define _SELINUX_IB_PKEY_H +#include <linux/types.h> + #ifdef CONFIG_SECURITY_INFINIBAND void sel_ib_pkey_flush(void); int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey, u32 *sid); diff --git a/security/selinux/include/initial_sid_to_string.h b/security/selinux/include/initial_sid_to_string.h index 5d332aeb8b6c..60820517aa43 100644 --- a/security/selinux/include/initial_sid_to_string.h +++ b/security/selinux/include/initial_sid_to_string.h @@ -1,6 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -static const char *initial_sid_to_string[] = -{ +static const char *const initial_sid_to_string[] = { NULL, "kernel", "security", diff --git a/security/selinux/include/netnode.h b/security/selinux/include/netnode.h index e3f784a85840..9b8b655a8cd3 100644 --- a/security/selinux/include/netnode.h +++ b/security/selinux/include/netnode.h @@ -17,6 +17,8 @@ #ifndef _SELINUX_NETNODE_H #define _SELINUX_NETNODE_H +#include <linux/types.h> + void sel_netnode_flush(void); int sel_netnode_sid(void *addr, u16 family, u32 *sid); diff --git a/security/selinux/include/netport.h b/security/selinux/include/netport.h index 31bc16e29cd1..9096a8289948 100644 --- a/security/selinux/include/netport.h +++ b/security/selinux/include/netport.h @@ -16,6 +16,8 @@ #ifndef _SELINUX_NETPORT_H #define _SELINUX_NETPORT_H +#include <linux/types.h> + void sel_netport_flush(void); int sel_netport_sid(u8 protocol, u16 pnum, u32 *sid); diff --git a/security/selinux/include/policycap.h b/security/selinux/include/policycap.h index 2680aa21205c..f35d3458e71d 100644 --- a/security/selinux/include/policycap.h +++ b/security/selinux/include/policycap.h @@ -16,6 +16,6 @@ enum { }; #define POLICYDB_CAP_MAX (__POLICYDB_CAP_MAX - 1) -extern const char *selinux_policycap_names[__POLICYDB_CAP_MAX]; +extern const char *const selinux_policycap_names[__POLICYDB_CAP_MAX]; #endif /* _SELINUX_POLICYCAP_H_ */ diff --git a/security/selinux/include/policycap_names.h b/security/selinux/include/policycap_names.h index 100da7d043db..2a87fc3702b8 100644 --- a/security/selinux/include/policycap_names.h +++ b/security/selinux/include/policycap_names.h @@ -5,7 +5,7 @@ #include "policycap.h" /* Policy capability names */ -const char *selinux_policycap_names[__POLICYDB_CAP_MAX] = { +const char *const selinux_policycap_names[__POLICYDB_CAP_MAX] = { "network_peer_controls", "open_perms", "extended_socket_class", diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h index ace4bd13e808..393aff41d3ef 100644 --- a/security/selinux/include/security.h +++ b/security/selinux/include/security.h @@ -16,6 +16,8 @@ #include <linux/rcupdate.h> #include <linux/refcount.h> #include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/printk.h> #include "flask.h" #include "policycap.h" @@ -150,6 +152,8 @@ static inline bool checkreqprot_get(const struct selinux_state *state) static inline void checkreqprot_set(struct selinux_state *state, bool value) { + if (value) + pr_err("SELinux: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-checkreqprot\n"); WRITE_ONCE(state->checkreqprot, value); } diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h index 74159400eeee..c75839860200 100644 --- a/security/selinux/include/xfrm.h +++ b/security/selinux/include/xfrm.h @@ -8,7 +8,9 @@ #ifndef _SELINUX_XFRM_H_ #define _SELINUX_XFRM_H_ +#include <linux/lsm_audit.h> #include <net/flow.h> +#include <net/xfrm.h> int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *uctx, diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c index d8ceee9e0d6f..2ee7b4ed43ef 100644 --- a/security/selinux/nlmsgtab.c +++ b/security/selinux/nlmsgtab.c @@ -25,8 +25,7 @@ struct nlmsg_perm { u32 perm; }; -static const struct nlmsg_perm nlmsg_route_perms[] = -{ +static const struct nlmsg_perm nlmsg_route_perms[] = { { RTM_NEWLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, { RTM_DELLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, { RTM_GETLINK, NETLINK_ROUTE_SOCKET__NLMSG_READ }, @@ -97,16 +96,14 @@ static const struct nlmsg_perm nlmsg_route_perms[] = { RTM_GETTUNNEL, NETLINK_ROUTE_SOCKET__NLMSG_READ }, }; -static const struct nlmsg_perm nlmsg_tcpdiag_perms[] = -{ +static const struct nlmsg_perm nlmsg_tcpdiag_perms[] = { { TCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, { DCCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, { SOCK_DIAG_BY_FAMILY, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, { SOCK_DESTROY, NETLINK_TCPDIAG_SOCKET__NLMSG_WRITE }, }; -static const struct nlmsg_perm nlmsg_xfrm_perms[] = -{ +static const struct nlmsg_perm nlmsg_xfrm_perms[] = { { XFRM_MSG_NEWSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, { XFRM_MSG_DELSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, { XFRM_MSG_GETSA, NETLINK_XFRM_SOCKET__NLMSG_READ }, @@ -134,8 +131,7 @@ static const struct nlmsg_perm nlmsg_xfrm_perms[] = { XFRM_MSG_GETDEFAULT, NETLINK_XFRM_SOCKET__NLMSG_READ }, }; -static const struct nlmsg_perm nlmsg_audit_perms[] = -{ +static const struct nlmsg_perm nlmsg_audit_perms[] = { { AUDIT_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ }, { AUDIT_SET, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, { AUDIT_LIST, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV }, diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 097c6d866ec4..8fcdd494af27 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -293,6 +293,8 @@ static ssize_t sel_write_disable(struct file *file, const char __user *buf, * kernel releases until eventually it is removed */ pr_err("SELinux: Runtime disable is deprecated, use selinux=0 on the kernel cmdline.\n"); + pr_err("SELinux: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-runtime-disable\n"); + ssleep(5); if (count >= PAGE_SIZE) return -ENOMEM; @@ -755,11 +757,13 @@ static ssize_t sel_write_checkreqprot(struct file *file, const char __user *buf, char comm[sizeof(current->comm)]; memcpy(comm, current->comm, sizeof(comm)); - pr_warn_once("SELinux: %s (%d) set checkreqprot to 1. This is deprecated and will be rejected in a future kernel release.\n", - comm, current->pid); + pr_err("SELinux: %s (%d) set checkreqprot to 1. This is deprecated and will be rejected in a future kernel release.\n", + comm, current->pid); } checkreqprot_set(fsi->state, (new_value ? 1 : 0)); + if (new_value) + ssleep(5); length = count; selinux_ima_measure_state(fsi->state); diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c index cfdae20792e1..8480ec6c6e75 100644 --- a/security/selinux/ss/avtab.c +++ b/security/selinux/ss/avtab.c @@ -40,15 +40,15 @@ static inline int avtab_hash(const struct avtab_key *keyp, u32 mask) u32 hash = 0; -#define mix(input) { \ - u32 v = input; \ - v *= c1; \ - v = (v << r1) | (v >> (32 - r1)); \ - v *= c2; \ - hash ^= v; \ - hash = (hash << r2) | (hash >> (32 - r2)); \ - hash = hash * m + n; \ -} +#define mix(input) do { \ + u32 v = input; \ + v *= c1; \ + v = (v << r1) | (v >> (32 - r1)); \ + v *= c2; \ + hash ^= v; \ + hash = (hash << r2) | (hash >> (32 - r2)); \ + hash = hash * m + n; \ + } while (0) mix(keyp->target_class); mix(keyp->target_type); @@ -385,7 +385,7 @@ void avtab_hash_eval(struct avtab *h, char *tag) chain2_len_sum); } -static uint16_t spec_order[] = { +static const uint16_t spec_order[] = { AVTAB_ALLOWED, AVTAB_AUDITDENY, AVTAB_AUDITALLOW, diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index d036e1238e77..adcfb63b3550 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -61,7 +61,7 @@ struct policydb_compat_info { }; /* These need to be updated if SYM_NUM or OCON_NUM changes */ -static struct policydb_compat_info policydb_compat[] = { +static const struct policydb_compat_info policydb_compat[] = { { .version = POLICYDB_VERSION_BASE, .sym_num = SYM_NUM - 3, @@ -159,18 +159,16 @@ static struct policydb_compat_info policydb_compat[] = { }, }; -static struct policydb_compat_info *policydb_lookup_compat(int version) +static const struct policydb_compat_info *policydb_lookup_compat(int version) { int i; - struct policydb_compat_info *info = NULL; for (i = 0; i < ARRAY_SIZE(policydb_compat); i++) { - if (policydb_compat[i].version == version) { - info = &policydb_compat[i]; - break; - } + if (policydb_compat[i].version == version) + return &policydb_compat[i]; } - return info; + + return NULL; } /* @@ -314,8 +312,7 @@ static int cat_destroy(void *key, void *datum, void *p) return 0; } -static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) = -{ +static int (*const destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) = { common_destroy, cls_destroy, role_destroy, @@ -670,8 +667,7 @@ static int cat_index(void *key, void *datum, void *datap) return 0; } -static int (*index_f[SYM_NUM]) (void *key, void *datum, void *datap) = -{ +static int (*const index_f[SYM_NUM]) (void *key, void *datum, void *datap) = { common_index, class_index, role_index, @@ -1639,8 +1635,8 @@ bad: return rc; } -static int (*read_f[SYM_NUM]) (struct policydb *p, struct symtab *s, void *fp) = -{ +static int (*const read_f[SYM_NUM]) (struct policydb *p, + struct symtab *s, void *fp) = { common_read, class_read, role_read, @@ -2211,7 +2207,7 @@ out: return rc; } -static int ocontext_read(struct policydb *p, struct policydb_compat_info *info, +static int ocontext_read(struct policydb *p, const struct policydb_compat_info *info, void *fp) { int i, j, rc; @@ -2407,7 +2403,7 @@ int policydb_read(struct policydb *p, void *fp) u32 len, nprim, nel, perm; char *policydb_str; - struct policydb_compat_info *info; + const struct policydb_compat_info *info; policydb_init(p); @@ -3241,9 +3237,7 @@ static int user_write(void *vkey, void *datum, void *ptr) return 0; } -static int (*write_f[SYM_NUM]) (void *key, void *datum, - void *datap) = -{ +static int (*const write_f[SYM_NUM]) (void *key, void *datum, void *datap) = { common_write, class_write, role_write, @@ -3254,7 +3248,7 @@ static int (*write_f[SYM_NUM]) (void *key, void *datum, cat_write, }; -static int ocontext_write(struct policydb *p, struct policydb_compat_info *info, +static int ocontext_write(struct policydb *p, const struct policydb_compat_info *info, void *fp) { unsigned int i, j, rc; @@ -3611,7 +3605,7 @@ int policydb_write(struct policydb *p, void *fp) __le32 buf[4]; u32 config; size_t len; - struct policydb_compat_info *info; + const struct policydb_compat_info *info; /* * refuse to write policy older than compressed avtab diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index 6901dc07680d..69b2734311a6 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -99,7 +99,7 @@ static void context_struct_compute_av(struct policydb *policydb, struct extended_perms *xperms); static int selinux_set_mapping(struct policydb *pol, - struct security_class_mapping *map, + const struct security_class_mapping *map, struct selinux_map *out_map) { u16 i, j; @@ -121,7 +121,7 @@ static int selinux_set_mapping(struct policydb *pol, /* Store the raw class and permission values */ j = 0; while (map[j].name) { - struct security_class_mapping *p_in = map + (j++); + const struct security_class_mapping *p_in = map + (j++); struct selinux_mapping *p_out = out_map->mapping + j; /* An empty class string skips ahead */ @@ -358,27 +358,27 @@ static int constraint_expr_eval(struct policydb *policydb, l2 = &(tcontext->range.level[1]); goto mls_ops; mls_ops: - switch (e->op) { - case CEXPR_EQ: - s[++sp] = mls_level_eq(l1, l2); - continue; - case CEXPR_NEQ: - s[++sp] = !mls_level_eq(l1, l2); - continue; - case CEXPR_DOM: - s[++sp] = mls_level_dom(l1, l2); - continue; - case CEXPR_DOMBY: - s[++sp] = mls_level_dom(l2, l1); - continue; - case CEXPR_INCOMP: - s[++sp] = mls_level_incomp(l2, l1); - continue; - default: - BUG(); - return 0; - } - break; + switch (e->op) { + case CEXPR_EQ: + s[++sp] = mls_level_eq(l1, l2); + continue; + case CEXPR_NEQ: + s[++sp] = !mls_level_eq(l1, l2); + continue; + case CEXPR_DOM: + s[++sp] = mls_level_dom(l1, l2); + continue; + case CEXPR_DOMBY: + s[++sp] = mls_level_dom(l2, l1); + continue; + case CEXPR_INCOMP: + s[++sp] = mls_level_incomp(l2, l1); + continue; + default: + BUG(); + return 0; + } + break; default: BUG(); return 0; @@ -2980,7 +2980,6 @@ int security_fs_use(struct selinux_state *state, struct super_block *sb) } retry: - rc = 0; rcu_read_lock(); policy = rcu_dereference(state->policy); policydb = &policy->policydb; |