linux-security-module July 2008 archive
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linux-security-module: [rfc patch 2/2] security: remove dummy mo

[rfc patch 2/2] security: remove dummy module

From: Miklos Szeredi <miklos_at_nospam>
Date: Thu Jul 03 2008 - 18:56:05 GMT
To: linux-security-module@vger.kernel.org


From: Miklos Szeredi <mszeredi@suse.cz>

Remove the dummy module and make the "capability" module the default.

Compile and boot tested.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
security/Kconfig | 10 security/Makefile | 11 security/capability.c | 1046 +++++++++++++++++++++++++++++++++++++++-- security/dummy.c | 1249 -------------------------------------------------- security/security.c | 15
 5 files changed, 994 insertions(+), 1337 deletions(-)

Index: linux-2.6/security/Kconfig


  • linux-2.6.orig/security/Kconfig 2008-07-03 20:12:32.000000000 +0200 +++ linux-2.6/security/Kconfig 2008-07-03 20:14:27.000000000 +0200 @@ -73,17 +73,9 @@ config SECURITY_NETWORK_XFRM IPSec. If you are unsure how to answer this question, answer N.

-config SECURITY_CAPABILITIES

  • bool "Default Linux Capabilities"
  • depends on SECURITY
  • default y
  • help
  • This enables the "default" Linux capabilities functionality.
  • If you are unsure how to answer this question, answer Y.
    -
    config SECURITY_FILE_CAPABILITIES bool "File POSIX Capabilities (EXPERIMENTAL)"
  • depends on (SECURITY=n || SECURITY_CAPABILITIES!=n) && EXPERIMENTAL + depends on SECURITY && EXPERIMENTAL default n help This enables filesystem capabilities, allowing you to give Index: linux-2.6/security/Makefile
    • linux-2.6.orig/security/Makefile 2008-07-03 20:12:32.000000000 +0200 +++ linux-2.6/security/Makefile 2008-07-03 20:13:50.000000000 +0200 @@ -6,16 +6,13 @@ obj-$(CONFIG_KEYS) += keys/ subdir-$(CONFIG_SECURITY_SELINUX) += selinux subdir-$(CONFIG_SECURITY_SMACK) += smack

-# if we don't select a security model, use the default capabilities
-ifneq ($(CONFIG_SECURITY),y)

+# always enable default capabilities
 obj-y += commoncap.o
-endif
 

 # Object file lists
-obj-$(CONFIG_SECURITY) += security.o dummy.o inode.o
+obj-$(CONFIG_SECURITY) += security.o capability.o inode.o  # Must precede capability.o in order to stack properly. obj-$(CONFIG_SECURITY_SELINUX) += selinux/built-in.o
-obj-$(CONFIG_SECURITY_SMACK) += commoncap.o smack/built-in.o
-obj-$(CONFIG_SECURITY_CAPABILITIES) += commoncap.o capability.o
-obj-$(CONFIG_SECURITY_ROOTPLUG) += commoncap.o root_plug.o
+obj-$(CONFIG_SECURITY_SMACK) += smack/built-in.o +obj-$(CONFIG_SECURITY_ROOTPLUG) += root_plug.o obj-$(CONFIG_CGROUP_DEVICE) += device_cgroup.o Index: linux-2.6/security/capability.c ===================================================================
--- linux-2.6.orig/security/capability.c 2008-07-03 20:12:32.000000000 +0200
+++ linux-2.6/security/capability.c 2008-07-03 20:30:46.000000000 +0200 @@ -1,6 +1,8 @@ /* * Capabilities Linux Security Module * + * This is the default security module in case no other module is loaded. + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -8,75 +10,995 @@
  *
  */  

-#include <linux/init.h>
-#include <linux/kernel.h>
#include <linux/security.h>
-#include <linux/file.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/pagemap.h>
-#include <linux/swap.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <linux/ptrace.h>
-#include <linux/moduleparam.h>
-
-static struct security_operations capability_ops = {

  • .ptrace = cap_ptrace,
  • .capget = cap_capget,
  • .capset_check = cap_capset_check,
  • .capset_set = cap_capset_set,
  • .capable = cap_capable,
  • .settime = cap_settime,
  • .netlink_send = cap_netlink_send,
  • .netlink_recv = cap_netlink_recv,
    -
  • .bprm_apply_creds = cap_bprm_apply_creds,
  • .bprm_set_security = cap_bprm_set_security,
  • .bprm_secureexec = cap_bprm_secureexec,
    -
  • .inode_setxattr = cap_inode_setxattr,
  • .inode_removexattr = cap_inode_removexattr,
  • .inode_need_killpriv = cap_inode_need_killpriv,
  • .inode_killpriv = cap_inode_killpriv,
    -
  • .task_setscheduler = cap_task_setscheduler,
  • .task_setioprio = cap_task_setioprio,
  • .task_setnice = cap_task_setnice,
  • .task_post_setuid = cap_task_post_setuid,
  • .task_prctl = cap_task_prctl,
  • .task_reparent_to_init = cap_task_reparent_to_init,
  • .syslog = cap_syslog, +static int cap_acct(struct file *file) +{ + return 0; +}
  • .vm_enough_memory = cap_vm_enough_memory,
    -};
    +static int cap_sysctl(ctl_table *table, int op) +{ + return 0; +} + +static int cap_quotactl(int cmds, int type, int id, struct super_block *sb) +{ + return 0; +} + +static int cap_quota_on(struct dentry *dentry) +{ + return 0; +} + +static int cap_bprm_alloc_security(struct linux_binprm *bprm) +{ + return 0; +} + +static void cap_bprm_free_security(struct linux_binprm *bprm) +{ +} + +static void cap_bprm_post_apply_creds(struct linux_binprm *bprm) +{ +} + +static int cap_bprm_check_security(struct linux_binprm *bprm) +{ + return 0; +} + +static int cap_sb_alloc_security(struct super_block *sb) +{ + return 0; +} + +static void cap_sb_free_security(struct super_block *sb) +{ +} + +static int cap_sb_copy_data(char *orig, char *copy) +{ + return 0; +} + +static int cap_sb_kern_mount(struct super_block *sb, void *data) +{ + return 0; +} + +static int cap_sb_show_options(struct seq_file *m, struct super_block *sb) +{ + return 0; +} + +static int cap_sb_statfs(struct dentry *dentry) +{ + return 0; +} + +static int cap_sb_mount(char *dev_name, struct path *path, char *type, + unsigned long flags, void *data) +{ + return 0; +} + +static int cap_sb_check_sb(struct vfsmount *mnt, struct path *path) +{ + return 0; +} + +static int cap_sb_umount(struct vfsmount *mnt, int flags) +{ + return 0; +} + +static void cap_sb_umount_close(struct vfsmount *mnt) +{ +} + +static void cap_sb_umount_busy(struct vfsmount *mnt) +{ +} + +static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags, + void *data) +{ +} + +static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path) +{ +} + +static int cap_sb_pivotroot(struct path *old_path, struct path *new_path) +{ + return 0; +} + +static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path) +{ +} + +static int cap_sb_set_mnt_opts(struct super_block *sb, + struct security_mnt_opts *opts) +{ + if (unlikely(opts->num_mnt_opts)) + return -EOPNOTSUPP; + return 0; +} + +static void cap_sb_clone_mnt_opts(const struct super_block *oldsb, + struct super_block *newsb) +{ +} + +static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) +{ + return 0; +} + +static int cap_inode_alloc_security(struct inode *inode) +{ + return 0; +} + +static void cap_inode_free_security(struct inode *inode) +{ +} + +static int cap_inode_init_security(struct inode *inode, struct inode *dir, + char **name, void **value, size_t *len) +{ + return -EOPNOTSUPP; +} + +static int cap_inode_create(struct inode *inode, struct dentry *dentry, + int mask) +{ + return 0; +} + +static int cap_inode_link(struct dentry *old_dentry, struct inode *inode, + struct dentry *new_dentry) +{ + return 0; +} + +static int cap_inode_unlink(struct inode *inode, struct dentry *dentry) +{ + return 0; +} + +static int cap_inode_symlink(struct inode *inode, struct dentry *dentry, + const char *name) +{ + return 0; +} + +static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry, + int mask) +{ + return 0; +} + +static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry) +{ + return 0; +} + +static int cap_inode_mknod(struct inode *inode, struct dentry *dentry, + int mode, dev_t dev) +{ + return 0; +} + +static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry, + struct inode *new_inode, struct dentry *new_dentry) +{ + return 0; +} + +static int cap_inode_readlink(struct dentry *dentry) +{ + return 0; +} + +static int cap_inode_follow_link(struct dentry *dentry, + struct nameidata *nameidata) +{ + return 0; +} + +static int cap_inode_permission(struct inode *inode, int mask, + struct nameidata *nd) +{ + return 0; +} + +static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr) +{ + return 0; +} + +static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) +{ + return 0; +} + +static void cap_inode_delete(struct inode *ino) +{ +} + +static void cap_inode_post_setxattr(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags) +{ +} + +static int cap_inode_getxattr(struct dentry *dentry, const char *name) +{ + return 0; +} + +static int cap_inode_listxattr(struct dentry *dentry) +{ + return 0; +} + +static int cap_inode_getsecurity(const struct inode *inode, const char *name, + void **buffer, bool alloc) +{ + return -EOPNOTSUPP; +} + +static int cap_inode_setsecurity(struct inode *inode, const char *name, + const void *value, size_t size, int flags) +{ + return -EOPNOTSUPP; +} + +static int cap_inode_listsecurity(struct inode *inode, char *buffer, + size_t buffer_size) +{ + return 0; +} + +static void cap_inode_getsecid(const struct inode *inode, u32 *secid) +{ + *secid = 0; +} + +static int cap_file_permission(struct file *file, int mask) +{ + return 0; +} + +static int cap_file_alloc_security(struct file *file) +{ + return 0; +}

-/* flag to keep track of how we were registered */
-static int secondary;
+static void cap_file_free_security(struct file *file) +{ +} + +static int cap_file_ioctl(struct file *file, unsigned int command, + unsigned long arg) +{ + return 0; +} + +static int cap_file_mmap(struct file *file, unsigned long reqprot, + unsigned long prot, unsigned long flags, + unsigned long addr, unsigned long addr_only) +{ + if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO)) + return -EACCES; + return 0; +} + +static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, + unsigned long prot) +{ + return 0; +} + +static int cap_file_lock(struct file *file, unsigned int cmd) +{ + return 0; +} + +static int cap_file_fcntl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + return 0; +} + +static int cap_file_set_fowner(struct file *file) +{ + return 0; +} + +static int cap_file_send_sigiotask(struct task_struct *tsk, + struct fown_struct *fown, int sig) +{ + return 0; +} + +static int cap_file_receive(struct file *file) +{ + return 0; +} + +static int cap_dentry_open(struct file *file) +{ + return 0; +} + +static int cap_task_create(unsigned long clone_flags) +{ + return 0; +} + +static int cap_task_alloc_security(struct task_struct *p) +{ + return 0; +} + +static void cap_task_free_security(struct task_struct *p) +{ +} + +static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags) +{ + return 0; +} + +static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags) +{ + return 0; +} + +static int cap_task_setpgid(struct task_struct *p, pid_t pgid) +{ + return 0; +}

-static int capability_disable;
-module_param_named(disable, capability_disable, int, 0);
+static int cap_task_getpgid(struct task_struct *p) +{ + return 0; +}

-static int __init capability_init (void)
+static int cap_task_getsid(struct task_struct *p)  {
- if (capability_disable) {

  • printk(KERN_INFO "Capabilities disabled at initialization\n");
  • return 0;
  • }
  • /* register ourselves with the security framework */
  • if (register_security (&capability_ops)) {
  • /* try registering with primary module */
  • if (mod_reg_security (KBUILD_MODNAME, &capability_ops)) {
  • printk (KERN_INFO "Failure registering capabilities "
  • "with primary security module.\n");
  • return -EINVAL;
  • }
  • secondary = 1;
  • }
  • printk (KERN_INFO "Capability LSM initialized%s\n",
  • secondary ? " as secondary" : ""); return 0; }

-security_initcall (capability_init);
+static void cap_task_getsecid(struct task_struct *p, u32 *secid) +{ + *secid = 0; +} + +static int cap_task_setgroups(struct group_info *group_info) +{ + return 0; +} + +static int cap_task_getioprio(struct task_struct *p) +{ + return 0; +} + +static int cap_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) +{ + return 0; +} + +static int cap_task_getscheduler(struct task_struct *p) +{ + return 0; +} + +static int cap_task_movememory(struct task_struct *p) +{ + return 0; +} + +static int cap_task_wait(struct task_struct *p) +{ + return 0; +} + +static int cap_task_kill(struct task_struct *p, struct siginfo *info, + int sig, u32 secid) +{ + return 0; +} + +static void cap_task_to_inode(struct task_struct *p, struct inode *inode) +{ +} + +static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag) +{ + return 0; +} + +static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) +{ + *secid = 0; +} + +static int cap_msg_msg_alloc_security(struct msg_msg *msg) +{ + return 0; +} + +static void cap_msg_msg_free_security(struct msg_msg *msg) +{ +} + +static int cap_msg_queue_alloc_security(struct msg_queue *msq) +{ + return 0; +} + +static void cap_msg_queue_free_security(struct msg_queue *msq) +{ +} + +static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg) +{ + return 0; +} + +static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd) +{ + return 0; +} + +static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg, + int msgflg) +{ + return 0; +} + +static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, + struct task_struct *target, long type, int mode) +{ + return 0; +} + +static int cap_shm_alloc_security(struct shmid_kernel *shp) +{ + return 0; +} + +static void cap_shm_free_security(struct shmid_kernel *shp) +{ +} + +static int cap_shm_associate(struct shmid_kernel *shp, int shmflg) +{ + return 0; +} + +static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd) +{ + return 0; +} + +static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, + int shmflg) +{ + return 0; +} + +static int cap_sem_alloc_security(struct sem_array *sma) +{ + return 0; +} + +static void cap_sem_free_security(struct sem_array *sma) +{ +} + +static int cap_sem_associate(struct sem_array *sma, int semflg) +{ + return 0; +} + +static int cap_sem_semctl(struct sem_array *sma, int cmd) +{ + return 0; +} + +static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops, + unsigned nsops, int alter) +{ + return 0; +} + +#ifdef CONFIG_SECURITY_NETWORK +static int cap_unix_stream_connect(struct socket *sock, struct socket *other, + struct sock *newsk) +{ + return 0; +} + +static int cap_unix_may_send(struct socket *sock, struct socket *other) +{ + return 0; +} + +static int cap_socket_create(int family, int type, int protocol, int kern) +{ + return 0; +} + +static int cap_socket_post_create(struct socket *sock, int family, int type, + int protocol, int kern) +{ + return 0; +} + +static int cap_socket_bind(struct socket *sock, struct sockaddr *address, + int addrlen) +{ + return 0; +} + +static int cap_socket_connect(struct socket *sock, struct sockaddr *address, + int addrlen) +{ + return 0; +} + +static int cap_socket_listen(struct socket *sock, int backlog) +{ + return 0; +} + +static int cap_socket_accept(struct socket *sock, struct socket *newsock) +{ + return 0; +} + +static void cap_socket_post_accept(struct socket *sock, struct socket *newsock) +{ +} + +static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) +{ + return 0; +} + +static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg, + int size, int flags) +{ + return 0; +} + +static int cap_socket_getsockname(struct socket *sock) +{ + return 0; +} + +static int cap_socket_getpeername(struct socket *sock) +{ + return 0; +} + +static int cap_socket_setsockopt(struct socket *sock, int level, int optname) +{ + return 0; +} + +static int cap_socket_getsockopt(struct socket *sock, int level, int optname) +{ + return 0; +} + +static int cap_socket_shutdown(struct socket *sock, int how) +{ + return 0; +} + +static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) +{ + return 0; +} + +static int cap_socket_getpeersec_stream(struct socket *sock, + char __user *optval, + int __user *optlen, unsigned len) +{ + return -ENOPROTOOPT; +} + +static int cap_socket_getpeersec_dgram(struct socket *sock, + struct sk_buff *skb, u32 *secid) +{ + return -ENOPROTOOPT; +} + +static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority) +{ + return 0; +} + +static void cap_sk_free_security(struct sock *sk) +{ +} + +static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk) +{ +} + +static void cap_sk_getsecid(struct sock *sk, u32 *secid) +{ +} + +static void cap_sock_graft(struct sock *sk, struct socket *parent) +{ +} + +static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb, + struct request_sock *req) +{ + return 0; +} + +static void cap_inet_csk_clone(struct sock *newsk, + const struct request_sock *req) +{ +} + +static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb) +{ +} + +static void cap_req_classify_flow(const struct request_sock *req, + struct flowi *fl) +{ +} +#endif /* CONFIG_SECURITY_NETWORK */ + +#ifdef CONFIG_SECURITY_NETWORK_XFRM +static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp, + struct xfrm_user_sec_ctx *sec_ctx) +{ + return 0; +} + +static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx, + struct xfrm_sec_ctx **new_ctxp) +{ + return 0; +} + +static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx) +{ +} + +static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx) +{ + return 0; +} + +static int cap_xfrm_state_alloc_security(struct xfrm_state *x, + struct xfrm_user_sec_ctx *sec_ctx, + u32 secid) +{ + return 0; +} + +static void cap_xfrm_state_free_security(struct xfrm_state *x) +{ +} + +static int cap_xfrm_state_delete_security(struct xfrm_state *x) +{ + return 0; +} + +static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir) +{ + return 0; +} + +static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x, + struct xfrm_policy *xp, + struct flowi *fl) +{ + return 1; +} + +static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall) +{ + return 0; +} + +#endif /* CONFIG_SECURITY_NETWORK_XFRM */ +static int cap_register_security(const char *name, + struct security_operations *ops) +{ + return -EINVAL; +} + +static void cap_d_instantiate(struct dentry *dentry, struct inode *inode) +{ +} + +static int cap_getprocattr(struct task_struct *p, char *name, char **value) +{ + return -EINVAL; +} + +static int cap_setprocattr(struct task_struct *p, char *name, void *value, + size_t size) +{ + return -EINVAL; +} + +static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) +{ + return -EOPNOTSUPP; +} + +static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) +{ + return -EOPNOTSUPP; +} + +static void cap_release_secctx(char *secdata, u32 seclen) +{ +} + +#ifdef CONFIG_KEYS +static int cap_key_alloc(struct key *key, struct task_struct *ctx, + unsigned long flags) +{ + return 0; +} + +static void cap_key_free(struct key *key) +{ +} + +static int cap_key_permission(key_ref_t key_ref, struct task_struct *context, + key_perm_t perm) +{ + return 0; +} + +static int cap_key_getsecurity(struct key *key, char **_buffer) +{ + *_buffer = NULL; + return 0; +} + +#endif /* CONFIG_KEYS */ + +#ifdef CONFIG_AUDIT +static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) +{ + return 0; +} + +static int cap_audit_rule_known(struct audit_krule *krule) +{ + return 0; +} + +static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, + struct audit_context *actx) +{ + return 0; +} + +static void cap_audit_rule_free(void *lsmrule) +{ +} +#endif /* CONFIG_AUDIT */ + +struct security_operations default_security_ops = { + .name = "default", +}; + +#define set_to_cap_if_null(ops, function) \ + do { \ + if (!ops->function) { \ + ops->function = cap_##function; \ + pr_debug("Had to override the " #function \ + " security operation with the default.\n");\ + } \ + } while (0) + +void security_fixup_ops(struct security_operations *ops) +{ + set_to_cap_if_null(ops, ptrace); + set_to_cap_if_null(ops, capget); + set_to_cap_if_null(ops, capset_check); + set_to_cap_if_null(ops, capset_set); + set_to_cap_if_null(ops, acct); + set_to_cap_if_null(ops, capable); + set_to_cap_if_null(ops, quotactl); + set_to_cap_if_null(ops, quota_on); + set_to_cap_if_null(ops, sysctl); + set_to_cap_if_null(ops, syslog); + set_to_cap_if_null(ops, settime); + set_to_cap_if_null(ops, vm_enough_memory); + set_to_cap_if_null(ops, bprm_alloc_security); + set_to_cap_if_null(ops, bprm_free_security); + set_to_cap_if_null(ops, bprm_apply_creds); + set_to_cap_if_null(ops, bprm_post_apply_creds); + set_to_cap_if_null(ops, bprm_set_security); + set_to_cap_if_null(ops, bprm_check_security); + set_to_cap_if_null(ops, bprm_secureexec); + set_to_cap_if_null(ops, sb_alloc_security); + set_to_cap_if_null(ops, sb_free_security); + set_to_cap_if_null(ops, sb_copy_data); + set_to_cap_if_null(ops, sb_kern_mount); + set_to_cap_if_null(ops, sb_show_options); + set_to_cap_if_null(ops, sb_statfs); + set_to_cap_if_null(ops, sb_mount); + set_to_cap_if_null(ops, sb_check_sb); + set_to_cap_if_null(ops, sb_umount); + set_to_cap_if_null(ops, sb_umount_close); + set_to_cap_if_null(ops, sb_umount_busy); + set_to_cap_if_null(ops, sb_post_remount); + set_to_cap_if_null(ops, sb_post_addmount); + set_to_cap_if_null(ops, sb_pivotroot); + set_to_cap_if_null(ops, sb_post_pivotroot); + set_to_cap_if_null(ops, sb_set_mnt_opts); + set_to_cap_if_null(ops, sb_clone_mnt_opts); + set_to_cap_if_null(ops, sb_parse_opts_str); + set_to_cap_if_null(ops, inode_alloc_security); + set_to_cap_if_null(ops, inode_free_security); + set_to_cap_if_null(ops, inode_init_security); + set_to_cap_if_null(ops, inode_create); + set_to_cap_if_null(ops, inode_link); + set_to_cap_if_null(ops, inode_unlink); + set_to_cap_if_null(ops, inode_symlink); + set_to_cap_if_null(ops, inode_mkdir); + set_to_cap_if_null(ops, inode_rmdir); + set_to_cap_if_null(ops, inode_mknod); + set_to_cap_if_null(ops, inode_rename); + set_to_cap_if_null(ops, inode_readlink); + set_to_cap_if_null(ops, inode_follow_link); + set_to_cap_if_null(ops, inode_permission); + set_to_cap_if_null(ops, inode_setattr); + set_to_cap_if_null(ops, inode_getattr); + set_to_cap_if_null(ops, inode_delete); + set_to_cap_if_null(ops, inode_setxattr); + set_to_cap_if_null(ops, inode_post_setxattr); + set_to_cap_if_null(ops, inode_getxattr); + set_to_cap_if_null(ops, inode_listxattr); + set_to_cap_if_null(ops, inode_removexattr); + set_to_cap_if_null(ops, inode_need_killpriv); + set_to_cap_if_null(ops, inode_killpriv); + set_to_cap_if_null(ops, inode_getsecurity); + set_to_cap_if_null(ops, inode_setsecurity); + set_to_cap_if_null(ops, inode_listsecurity); + set_to_cap_if_null(ops, inode_getsecid); + set_to_cap_if_null(ops, file_permission); + set_to_cap_if_null(ops, file_alloc_security); + set_to_cap_if_null(ops, file_free_security); + set_to_cap_if_null(ops, file_ioctl); + set_to_cap_if_null(ops, file_mmap); + set_to_cap_if_null(ops, file_mprotect); + set_to_cap_if_null(ops, file_lock); + set_to_cap_if_null(ops, file_fcntl); + set_to_cap_if_null(ops, file_set_fowner); + set_to_cap_if_null(ops, file_send_sigiotask); + set_to_cap_if_null(ops, file_receive); + set_to_cap_if_null(ops, dentry_open); + set_to_cap_if_null(ops, task_create); + set_to_cap_if_null(ops, task_alloc_security); + set_to_cap_if_null(ops, task_free_security); + set_to_cap_if_null(ops, task_setuid); + set_to_cap_if_null(ops, task_post_setuid); + set_to_cap_if_null(ops, task_setgid); + set_to_cap_if_null(ops, task_setpgid); + set_to_cap_if_null(ops, task_getpgid); + set_to_cap_if_null(ops, task_getsid); + set_to_cap_if_null(ops, task_getsecid); + set_to_cap_if_null(ops, task_setgroups); + set_to_cap_if_null(ops, task_setnice); + set_to_cap_if_null(ops, task_setioprio); + set_to_cap_if_null(ops, task_getioprio); + set_to_cap_if_null(ops, task_setrlimit); + set_to_cap_if_null(ops, task_setscheduler); + set_to_cap_if_null(ops, task_getscheduler); + set_to_cap_if_null(ops, task_movememory); + set_to_cap_if_null(ops, task_wait); + set_to_cap_if_null(ops, task_kill); + set_to_cap_if_null(ops, task_prctl); + set_to_cap_if_null(ops, task_reparent_to_init); + set_to_cap_if_null(ops, task_to_inode); + set_to_cap_if_null(ops, ipc_permission); + set_to_cap_if_null(ops, ipc_getsecid); + set_to_cap_if_null(ops, msg_msg_alloc_security); + set_to_cap_if_null(ops, msg_msg_free_security); + set_to_cap_if_null(ops, msg_queue_alloc_security); + set_to_cap_if_null(ops, msg_queue_free_security); + set_to_cap_if_null(ops, msg_queue_associate); + set_to_cap_if_null(ops, msg_queue_msgctl); + set_to_cap_if_null(ops, msg_queue_msgsnd); + set_to_cap_if_null(ops, msg_queue_msgrcv); + set_to_cap_if_null(ops, shm_alloc_security); + set_to_cap_if_null(ops, shm_free_security); + set_to_cap_if_null(ops, shm_associate); + set_to_cap_if_null(ops, shm_shmctl); + set_to_cap_if_null(ops, shm_shmat); + set_to_cap_if_null(ops, sem_alloc_security); + set_to_cap_if_null(ops, sem_free_security); + set_to_cap_if_null(ops, sem_associate); + set_to_cap_if_null(ops, sem_semctl); + set_to_cap_if_null(ops, sem_semop); + set_to_cap_if_null(ops, netlink_send); + set_to_cap_if_null(ops, netlink_recv); + set_to_cap_if_null(ops, register_security); + set_to_cap_if_null(ops, d_instantiate); + set_to_cap_if_null(ops, getprocattr); + set_to_cap_if_null(ops, setprocattr); + set_to_cap_if_null(ops, secid_to_secctx); + set_to_cap_if_null(ops, secctx_to_secid); + set_to_cap_if_null(ops, release_secctx); +#ifdef CONFIG_SECURITY_NETWORK + set_to_cap_if_null(ops, unix_stream_connect); + set_to_cap_if_null(ops, unix_may_send); + set_to_cap_if_null(ops, socket_create); + set_to_cap_if_null(ops, socket_post_create); + set_to_cap_if_null(ops, socket_bind); + set_to_cap_if_null(ops, socket_connect); + set_to_cap_if_null(ops, socket_listen); + set_to_cap_if_null(ops, socket_accept); + set_to_cap_if_null(ops, socket_post_accept); + set_to_cap_if_null(ops, socket_sendmsg); + set_to_cap_if_null(ops, socket_recvmsg); + set_to_cap_if_null(ops, socket_getsockname); + set_to_cap_if_null(ops, socket_getpeername); + set_to_cap_if_null(ops, socket_setsockopt); + set_to_cap_if_null(ops, socket_getsockopt); + set_to_cap_if_null(ops, socket_shutdown); + set_to_cap_if_null(ops, socket_sock_rcv_skb); + set_to_cap_if_null(ops, socket_getpeersec_stream); + set_to_cap_if_null(ops, socket_getpeersec_dgram); + set_to_cap_if_null(ops, sk_alloc_security); + set_to_cap_if_null(ops, sk_free_security); + set_to_cap_if_null(ops, sk_clone_security); + set_to_cap_if_null(ops, sk_getsecid); + set_to_cap_if_null(ops, sock_graft); + set_to_cap_if_null(ops, inet_conn_request); + set_to_cap_if_null(ops, inet_csk_clone); + set_to_cap_if_null(ops, inet_conn_established); + set_to_cap_if_null(ops, req_classify_flow); +#endif /* CONFIG_SECURITY_NETWORK */ +#ifdef CONFIG_SECURITY_NETWORK_XFRM + set_to_cap_if_null(ops, xfrm_policy_alloc_security); + set_to_cap_if_null(ops, xfrm_policy_clone_security); + set_to_cap_if_null(ops, xfrm_policy_free_security); + set_to_cap_if_null(ops, xfrm_policy_delete_security); + set_to_cap_if_null(ops, xfrm_state_alloc_security); + set_to_cap_if_null(ops, xfrm_state_free_security); + set_to_cap_if_null(ops, xfrm_state_delete_security); + set_to_cap_if_null(ops, xfrm_policy_lookup); + set_to_cap_if_null(ops, xfrm_state_pol_flow_match); + set_to_cap_if_null(ops, xfrm_decode_session); +#endif /* CONFIG_SECURITY_NETWORK_XFRM */ +#ifdef CONFIG_KEYS + set_to_cap_if_null(ops, key_alloc); + set_to_cap_if_null(ops, key_free); + set_to_cap_if_null(ops, key_permission); + set_to_cap_if_null(ops, key_getsecurity); +#endif /* CONFIG_KEYS */ +#ifdef CONFIG_AUDIT + set_to_cap_if_null(ops, audit_rule_init); + set_to_cap_if_null(ops, audit_rule_known); + set_to_cap_if_null(ops, audit_rule_match); + set_to_cap_if_null(ops, audit_rule_free); +#endif +}
Index: linux-2.6/security/dummy.c


  • linux-2.6.orig/security/dummy.c 2008-07-03 20:13:49.000000000 +0200 +++ /dev/null 1970-01-01 00:00:00.000000000 +0000 @@ -1,1249 +0,0 @@
    -/*
    • * Stub functions for the default security function pointers in case no
    • * security model is loaded.
    • *
    • * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
    • * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
    • * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
    • *
    • * This program is free software; you can redistribute it and/or modify
    • * it under the terms of the GNU General Public License as published by
    • * the Free Software Foundation; either version 2 of the License, or
    • * (at your option) any later version.
    • */
      -
      -#undef DEBUG
      -
      -#include <linux/capability.h>
      -#include <linux/kernel.h>
      -#include <linux/mman.h>
      -#include <linux/pagemap.h>
      -#include <linux/swap.h>
      -#include <linux/security.h>
      -#include <linux/skbuff.h>
      -#include <linux/netlink.h>
      -#include <net/sock.h>
      -#include <linux/xattr.h>
      -#include <linux/hugetlb.h>
      -#include <linux/ptrace.h>
      -#include <linux/file.h>
      -#include <linux/prctl.h>
      -#include <linux/securebits.h>
      -
      -static int dummy_ptrace (struct task_struct *parent, struct task_struct *child)
      -{
    • return 0;
      -}
      -
      -static int dummy_capget (struct task_struct *target, kernel_cap_t * effective,
    • kernel_cap_t * inheritable, kernel_cap_t * permitted)
      -{
    • if (target->euid == 0) {
    • cap_set_full(*permitted);
    • cap_set_init_eff(*effective);
    • } else {
    • cap_clear(*permitted);
    • cap_clear(*effective);
    • }
      -
    • cap_clear(*inheritable);
      -
    • if (target->fsuid != 0) {
    • *permitted = cap_drop_fs_set(*permitted);
    • *effective = cap_drop_fs_set(*effective);
    • }
    • return 0;
      -}
      -
      -static int dummy_capset_check (struct task_struct *target,
    • kernel_cap_t * effective,
    • kernel_cap_t * inheritable,
    • kernel_cap_t * permitted)
      -{
    • return -EPERM;
      -}
      -
      -static void dummy_capset_set (struct task_struct *target,
    • kernel_cap_t * effective,
    • kernel_cap_t * inheritable,
    • kernel_cap_t * permitted)
      -{
    • return;
      -}
      -
      -static int dummy_acct (struct file *file)
      -{
    • return 0;
      -}
      -
      -static int dummy_capable (struct task_struct *tsk, int cap)
      -{
    • if (cap_raised (tsk->cap_effective, cap))
    • return 0;
    • return -EPERM;
      -}
      -
      -static int dummy_sysctl (ctl_table * table, int op)
      -{
    • return 0;
      -}
      -
      -static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb)
      -{
    • return 0;
      -}
      -
      -static int dummy_quota_on (struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_syslog (int type)
      -{
    • if ((type != 3 && type != 10) && current->euid)
    • return -EPERM;
    • return 0;
      -}
      -
      -static int dummy_settime(struct timespec *ts, struct timezone *tz)
      -{
    • if (!capable(CAP_SYS_TIME))
    • return -EPERM;
    • return 0;
      -}
      -
      -static int dummy_vm_enough_memory(struct mm_struct *mm, long pages)
      -{
    • int cap_sys_admin = 0;
      -
    • if (dummy_capable(current, CAP_SYS_ADMIN) == 0)
    • cap_sys_admin = 1;
    • return __vm_enough_memory(mm, pages, cap_sys_admin);
      -}
      -
      -static int dummy_bprm_alloc_security (struct linux_binprm *bprm)
      -{
    • return 0;
      -}
      -
      -static void dummy_bprm_free_security (struct linux_binprm *bprm)
      -{
    • return;
      -}
      -
      -static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
      -{
    • if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) {
    • set_dumpable(current->mm, suid_dumpable);
      -
    • if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) {
    • bprm->e_uid = current->uid;
    • bprm->e_gid = current->gid;
    • }
    • }
      -
    • current->suid = current->euid = current->fsuid = bprm->e_uid;
    • current->sgid = current->egid = current->fsgid = bprm->e_gid;
      -
    • dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
      -}
      -
      -static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm)
      -{
    • return;
      -}
      -
      -static int dummy_bprm_set_security (struct linux_binprm *bprm)
      -{
    • return 0;
      -}
      -
      -static int dummy_bprm_check_security (struct linux_binprm *bprm)
      -{
    • return 0;
      -}
      -
      -static int dummy_bprm_secureexec (struct linux_binprm *bprm)
      -{
    • /* The new userland will simply use the value provided
    • in the AT_SECURE field to decide whether secure mode
    • is required. Hence, this logic is required to preserve
    • the legacy decision algorithm used by the old userland. */
    • return (current->euid != current->uid ||
    • current->egid != current->gid);
      -}
      -
      -static int dummy_sb_alloc_security (struct super_block *sb)
      -{
    • return 0;
      -}
      -
      -static void dummy_sb_free_security (struct super_block *sb)
      -{
    • return;
      -}
      -
      -static int dummy_sb_copy_data (char *orig, char *copy)
      -{
    • return 0;
      -}
      -
      -static int dummy_sb_kern_mount (struct super_block *sb, void *data)
      -{
    • return 0;
      -}
      -
      -static int dummy_sb_show_options(struct seq_file *m, struct super_block *sb)
      -{
    • return 0;
      -}
      -
      -static int dummy_sb_statfs (struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_sb_mount (char *dev_name, struct path *path, char *type,
    • unsigned long flags, void *data)
      -{
    • return 0;
      -}
      -
      -static int dummy_sb_check_sb (struct vfsmount *mnt, struct path *path)
      -{
    • return 0;
      -}
      -
      -static int dummy_sb_umount (struct vfsmount *mnt, int flags)
      -{
    • return 0;
      -}
      -
      -static void dummy_sb_umount_close (struct vfsmount *mnt)
      -{
    • return;
      -}
      -
      -static void dummy_sb_umount_busy (struct vfsmount *mnt)
      -{
    • return;
      -}
      -
      -static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags,
    • void *data)
      -{
    • return;
      -}
      -
      -
      -static void dummy_sb_post_addmount (struct vfsmount *mnt, struct path *path)
      -{
    • return;
      -}
      -
      -static int dummy_sb_pivotroot (struct path *old_path, struct path *new_path)
      -{
    • return 0;
      -}
      -
      -static void dummy_sb_post_pivotroot (struct path *old_path, struct path *new_path)
      -{
    • return;
      -}
      -
      -static int dummy_sb_set_mnt_opts(struct super_block *sb,
    • struct security_mnt_opts *opts)
      -{
    • if (unlikely(opts->num_mnt_opts))
    • return -EOPNOTSUPP;
    • return 0;
      -}
      -
      -static void dummy_sb_clone_mnt_opts(const struct super_block *oldsb,
    • struct super_block *newsb)
      -{
    • return;
      -}
      -
      -static int dummy_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_alloc_security (struct inode *inode)
      -{
    • return 0;
      -}
      -
      -static void dummy_inode_free_security (struct inode *inode)
      -{
    • return;
      -}
      -
      -static int dummy_inode_init_security (struct inode *inode, struct inode *dir,
    • char **name, void **value, size_t *len)
      -{
    • return -EOPNOTSUPP;
      -}
      -
      -static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
    • int mask)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
    • struct dentry *new_dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry,
    • const char *name)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
    • int mask)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry,
    • int mode, dev_t dev)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_rename (struct inode *old_inode,
    • struct dentry *old_dentry,
    • struct inode *new_inode,
    • struct dentry *new_dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_readlink (struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_follow_link (struct dentry *dentry,
    • struct nameidata *nameidata)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static void dummy_inode_delete (struct inode *ino)
      -{
    • return;
      -}
      -
      -static int dummy_inode_setxattr (struct dentry *dentry, const char *name,
    • const void *value, size_t size, int flags)
      -{
    • if (!strncmp(name, XATTR_SECURITY_PREFIX,
    • sizeof(XATTR_SECURITY_PREFIX) - 1) &&
    • !capable(CAP_SYS_ADMIN))
    • return -EPERM;
    • return 0;
      -}
      -
      -static void dummy_inode_post_setxattr (struct dentry *dentry, const char *name,
    • const void *value, size_t size,
    • int flags)
      -{
      -}
      -
      -static int dummy_inode_getxattr (struct dentry *dentry, const char *name)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_listxattr (struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_removexattr (struct dentry *dentry, const char *name)
      -{
    • if (!strncmp(name, XATTR_SECURITY_PREFIX,
    • sizeof(XATTR_SECURITY_PREFIX) - 1) &&
    • !capable(CAP_SYS_ADMIN))
    • return -EPERM;
    • return 0;
      -}
      -
      -static int dummy_inode_need_killpriv(struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_killpriv(struct dentry *dentry)
      -{
    • return 0;
      -}
      -
      -static int dummy_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
      -{
    • return -EOPNOTSUPP;
      -}
      -
      -static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
      -{
    • return -EOPNOTSUPP;
      -}
      -
      -static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
      -{
    • return 0;
      -}
      -
      -static void dummy_inode_getsecid(const struct inode *inode, u32 *secid)
      -{
    • *secid = 0;
      -}
      -
      -static int dummy_file_permission (struct file *file, int mask)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_alloc_security (struct file *file)
      -{
    • return 0;
      -}
      -
      -static void dummy_file_free_security (struct file *file)
      -{
    • return;
      -}
      -
      -static int dummy_file_ioctl (struct file *file, unsigned int command,
    • unsigned long arg)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_mmap (struct file *file, unsigned long reqprot,
    • unsigned long prot,
    • unsigned long flags,
    • unsigned long addr,
    • unsigned long addr_only)
      -{
    • if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
    • return -EACCES;
    • return 0;
      -}
      -
      -static int dummy_file_mprotect (struct vm_area_struct *vma,
    • unsigned long reqprot,
    • unsigned long prot)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_lock (struct file *file, unsigned int cmd)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_fcntl (struct file *file, unsigned int cmd,
    • unsigned long arg)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_set_fowner (struct file *file)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_send_sigiotask (struct task_struct *tsk,
    • struct fown_struct *fown, int sig)
      -{
    • return 0;
      -}
      -
      -static int dummy_file_receive (struct file *file)
      -{
    • return 0;
      -}
      -
      -static int dummy_dentry_open (struct file *file)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_create (unsigned long clone_flags)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_alloc_security (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static void dummy_task_free_security (struct task_struct *p)
      -{
    • return;
      -}
      -
      -static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
      -{
    • dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
    • return 0;
      -}
      -
      -static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_setpgid (struct task_struct *p, pid_t pgid)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_getpgid (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_getsid (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static void dummy_task_getsecid (struct task_struct *p, u32 *secid)
      -{
    • *secid = 0;
      -}
      -
      -static int dummy_task_setgroups (struct group_info *group_info)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_setnice (struct task_struct *p, int nice)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_setioprio (struct task_struct *p, int ioprio)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_getioprio (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_setscheduler (struct task_struct *p, int policy,
    • struct sched_param *lp)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_getscheduler (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_movememory (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_wait (struct task_struct *p)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
    • int sig, u32 secid)
      -{
    • return 0;
      -}
      -
      -static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3,
    • unsigned long arg4, unsigned long arg5, long *rc_p)
      -{
    • switch (option) {
    • case PR_CAPBSET_READ:
    • *rc_p = (cap_valid(arg2) ? 1 : -EINVAL);
    • break;
    • case PR_GET_KEEPCAPS:
    • *rc_p = issecure(SECURE_KEEP_CAPS);
    • break;
    • case PR_SET_KEEPCAPS:
    • if (arg2 > 1)
    • *rc_p = -EINVAL;
    • else if (arg2)
    • current->securebits |= issecure_mask(SECURE_KEEP_CAPS);
    • else
    • current->securebits &=
    • ~issecure_mask(SECURE_KEEP_CAPS);
    • break;
    • default:
    • return 0;
    • }
      -
    • return 1;
      -}
      -
      -static void dummy_task_reparent_to_init (struct task_struct *p)
      -{
    • p->euid = p->fsuid = 0;
    • return;
      -}
      -
      -static void dummy_task_to_inode(struct task_struct *p, struct inode *inode)
      -{ }
      -
      -static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag)
      -{
    • return 0;
      -}
      -
      -static void dummy_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
      -{
    • *secid = 0;
      -}
      -
      -static int dummy_msg_msg_alloc_security (struct msg_msg *msg)
      -{
    • return 0;
      -}
      -
      -static void dummy_msg_msg_free_security (struct msg_msg *msg)
      -{
    • return;
      -}
      -
      -static int dummy_msg_queue_alloc_security (struct msg_queue *msq)
      -{
    • return 0;
      -}
      -
      -static void dummy_msg_queue_free_security (struct msg_queue *msq)
      -{
    • return;
      -}
      -
      -static int dummy_msg_queue_associate (struct msg_queue *msq,
    • int msqflg)
      -{
    • return 0;
      -}
      -
      -static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd)
      -{
    • return 0;
      -}
      -
      -static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg,
    • int msgflg)
      -{
    • return 0;
      -}
      -
      -static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg,
    • struct task_struct *target, long type,
    • int mode)
      -{
    • return 0;
      -}
      -
      -static int dummy_shm_alloc_security (struct shmid_kernel *shp)
      -{
    • return 0;
      -}
      -
      -static void dummy_shm_free_security (struct shmid_kernel *shp)
      -{
    • return;
      -}
      -
      -static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg)
      -{
    • return 0;
      -}
      -
      -static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd)
      -{
    • return 0;
      -}
      -
      -static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr,
    • int shmflg)
      -{
    • return 0;
      -}
      -
      -static int dummy_sem_alloc_security (struct sem_array *sma)
      -{
    • return 0;
      -}
      -
      -static void dummy_sem_free_security (struct sem_array *sma)
      -{
    • return;
      -}
      -
      -static int dummy_sem_associate (struct sem_array *sma, int semflg)
      -{
    • return 0;
      -}
      -
      -static int dummy_sem_semctl (struct sem_array *sma, int cmd)
      -{
    • return 0;
      -}
      -
      -static int dummy_sem_semop (struct sem_array *sma,
    • struct sembuf *sops, unsigned nsops, int alter)
      -{
    • return 0;
      -}
      -
      -static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
      -{
    • NETLINK_CB(skb).eff_cap = current->cap_effective;
    • return 0;
      -}
      -
      -static int dummy_netlink_recv (struct sk_buff *skb, int cap)
      -{
    • if (!cap_raised (NETLINK_CB (skb).eff_cap, cap))
    • return -EPERM;
    • return 0;
      -}
      -
      -#ifdef CONFIG_SECURITY_NETWORK
      -static int dummy_unix_stream_connect (struct socket *sock,
    • struct socket *other,
    • struct sock *newsk)
      -{
    • return 0;
      -}
      -
      -static int dummy_unix_may_send (struct socket *sock,
    • struct socket *other)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_create (int family, int type,
    • int protocol, int kern)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_post_create (struct socket *sock, int family, int type,
    • int protocol, int kern)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_bind (struct socket *sock, struct sockaddr *address,
    • int addrlen)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_connect (struct socket *sock, struct sockaddr *address,
    • int addrlen)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_listen (struct socket *sock, int backlog)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_accept (struct socket *sock, struct socket *newsock)
      -{
    • return 0;
      -}
      -
      -static void dummy_socket_post_accept (struct socket *sock,
    • struct socket *newsock)
      -{
    • return;
      -}
      -
      -static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg,
    • int size)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg,
    • int size, int flags)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_getsockname (struct socket *sock)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_getpeername (struct socket *sock)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_setsockopt (struct socket *sock, int level, int optname)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_getsockopt (struct socket *sock, int level, int optname)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_shutdown (struct socket *sock, int how)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb)
      -{
    • return 0;
      -}
      -
      -static int dummy_socket_getpeersec_stream(struct socket *sock, char __user *optval,
    • int __user *optlen, unsigned len)
      -{
    • return -ENOPROTOOPT;
      -}
      -
      -static int dummy_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
      -{
    • return -ENOPROTOOPT;
      -}
      -
      -static inline int dummy_sk_alloc_security (struct sock *sk, int family, gfp_t priority)
      -{
    • return 0;
      -}
      -
      -static inline void dummy_sk_free_security (struct sock *sk)
      -{
      -}
      -
      -static inline void dummy_sk_clone_security (const struct sock *sk, struct sock *newsk)
      -{
      -}
      -
      -static inline void dummy_sk_getsecid(struct sock *sk, u32 *secid)
      -{
      -}
      -
      -static inline void dummy_sock_graft(struct sock* sk, struct socket *parent)
      -{
      -}
      -
      -static inline int dummy_inet_conn_request(struct sock *sk,
    • struct sk_buff *skb, struct request_sock *req)
      -{
    • return 0;
      -}
      -
      -static inline void dummy_inet_csk_clone(struct sock *newsk,
    • const struct request_sock *req)
      -{
      -}
      -
      -static inline void dummy_inet_conn_established(struct sock *sk,
    • struct sk_buff *skb)
      -{
      -}
      -
      -static inline void dummy_req_classify_flow(const struct request_sock *req,
    • struct flowi *fl)
      -{
      -}
      -#endif /* CONFIG_SECURITY_NETWORK */
      -
      -#ifdef CONFIG_SECURITY_NETWORK_XFRM
      -static int dummy_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
    • struct xfrm_user_sec_ctx *sec_ctx)
      -{
    • return 0;
      -}
      -
      -static inline int dummy_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
    • struct xfrm_sec_ctx **new_ctxp)
      -{
    • return 0;
      -}
      -
      -static void dummy_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
      -{
      -}
      -
      -static int dummy_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
      -{
    • return 0;
      -}
      -
      -static int dummy_xfrm_state_alloc_security(struct xfrm_state *x,
    • struct xfrm_user_sec_ctx *sec_ctx, u32 secid)
      -{
    • return 0;
      -}
      -
      -static void dummy_xfrm_state_free_security(struct xfrm_state *x)
      -{
      -}
      -
      -static int dummy_xfrm_state_delete_security(struct xfrm_state *x)
      -{
    • return 0;
      -}
      -
      -static int dummy_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx,
    • u32 sk_sid, u8 dir)
      -{
    • return 0;
      -}
      -
      -static int dummy_xfrm_state_pol_flow_match(struct xfrm_state *x,
    • struct xfrm_policy *xp, struct flowi *fl)
      -{
    • return 1;
      -}
      -
      -static int dummy_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
      -{
    • return 0;
      -}
      -
      -#endif /* CONFIG_SECURITY_NETWORK_XFRM */
      -static int dummy_register_security (const char *name, struct security_operations *ops)
      -{
    • return -EINVAL;
      -}
      -
      -static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode)
      -{
    • return;
      -}
      -
      -static int dummy_getprocattr(struct task_struct *p, char *name, char **value)
      -{
    • return -EINVAL;
      -}
      -
      -static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
      -{
    • return -EINVAL;
      -}
      -
      -static int dummy_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
      -{
    • return -EOPNOTSUPP;
      -}
      -
      -static int dummy_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
      -{
    • return -EOPNOTSUPP;
      -}
      -
      -static void dummy_release_secctx(char *secdata, u32 seclen)
      -{
      -}
      -
      -#ifdef CONFIG_KEYS
      -static inline int dummy_key_alloc(struct key *key, struct task_struct *ctx,
    • unsigned long flags)
      -{
    • return 0;
      -}
      -
      -static inline void dummy_key_free(struct key *key)
      -{
      -}
      -
      -static inline int dummy_key_permission(key_ref_t key_ref,
    • struct task_struct *context,
    • key_perm_t perm)
      -{
    • return 0;
      -}
      -
      -static int dummy_key_getsecurity(struct key *key, char **_buffer)
      -{
    • *_buffer = NULL;
    • return 0;
      -}
      -
      -#endif /* CONFIG_KEYS */
      -
      -#ifdef CONFIG_AUDIT
      -static inline int dummy_audit_rule_init(u32 field, u32 op, char *rulestr,
    • void **lsmrule)
      -{
    • return 0;
      -}
      -
      -static inline int dummy_audit_rule_known(struct audit_krule *krule)
      -{
    • return 0;
      -}
      -
      -static inline int dummy_audit_rule_match(u32 secid, u32 field, u32 op,
    • void *lsmrule,
    • struct audit_context *actx)
      -{
    • return 0;
      -}
      -
      -static inline void dummy_audit_rule_free(void *lsmrule)
      -{ }
      -
      -#endif /* CONFIG_AUDIT */
      -
      -struct security_operations dummy_security_ops = {
    • .name = "dummy",
      -};
      -
      -#define set_to_dummy_if_null(ops, function) \
    • do { \
    • if (!ops->function) { \
    • ops->function = dummy_##function; \
    • pr_debug("Had to override the " #function \
    • " security operation with the dummy one.\n");\
    • } \
    • } while (0)
      -
      -void security_fixup_ops (struct security_operations *ops)
      -{
    • set_to_dummy_if_null(ops, ptrace);
    • set_to_dummy_if_null(ops, capget);
    • set_to_dummy_if_null(ops, capset_check);
    • set_to_dummy_if_null(ops, capset_set);
    • set_to_dummy_if_null(ops, acct);
    • set_to_dummy_if_null(ops, capable);
    • set_to_dummy_if_null(ops, quotactl);
    • set_to_dummy_if_null(ops, quota_on);
    • set_to_dummy_if_null(ops, sysctl);
    • set_to_dummy_if_null(ops, syslog);
    • set_to_dummy_if_null(ops, settime);
    • set_to_dummy_if_null(ops, vm_enough_memory);
    • set_to_dummy_if_null(ops, bprm_alloc_security);
    • set_to_dummy_if_null(ops, bprm_free_security);
    • set_to_dummy_if_null(ops, bprm_apply_creds);
    • set_to_dummy_if_null(ops, bprm_post_apply_creds);
    • set_to_dummy_if_null(ops, bprm_set_security);
    • set_to_dummy_if_null(ops, bprm_check_security);
    • set_to_dummy_if_null(ops, bprm_secureexec);
    • set_to_dummy_if_null(ops, sb_alloc_security);
    • set_to_dummy_if_null(ops, sb_free_security);
    • set_to_dummy_if_null(ops, sb_copy_data);
    • set_to_dummy_if_null(ops, sb_kern_mount);
    • set_to_dummy_if_null(ops, sb_show_options);
    • set_to_dummy_if_null(ops, sb_statfs);
    • set_to_dummy_if_null(ops, sb_mount);
    • set_to_dummy_if_null(ops, sb_check_sb);
    • set_to_dummy_if_null(ops, sb_umount);
    • set_to_dummy_if_null(ops, sb_umount_close);
    • set_to_dummy_if_null(ops, sb_umount_busy);
    • set_to_dummy_if_null(ops, sb_post_remount);
    • set_to_dummy_if_null(ops, sb_post_addmount);
    • set_to_dummy_if_null(ops, sb_pivotroot);
    • set_to_dummy_if_null(ops, sb_post_pivotroot);
    • set_to_dummy_if_null(ops, sb_set_mnt_opts);
    • set_to_dummy_if_null(ops, sb_clone_mnt_opts);
    • set_to_dummy_if_null(ops, sb_parse_opts_str);
    • set_to_dummy_if_null(ops, inode_alloc_security);
    • set_to_dummy_if_null(ops, inode_free_security);
    • set_to_dummy_if_null(ops, inode_init_security);
    • set_to_dummy_if_null(ops, inode_create);
    • set_to_dummy_if_null(ops, inode_link);
    • set_to_dummy_if_null(ops, inode_unlink);
    • set_to_dummy_if_null(ops, inode_symlink);
    • set_to_dummy_if_null(ops, inode_mkdir);
    • set_to_dummy_if_null(ops, inode_rmdir);
    • set_to_dummy_if_null(ops, inode_mknod);
    • set_to_dummy_if_null(ops, inode_rename);
    • set_to_dummy_if_null(ops, inode_readlink);
    • set_to_dummy_if_null(ops, inode_follow_link);
    • set_to_dummy_if_null(ops, inode_permission);
    • set_to_dummy_if_null(ops, inode_setattr);
    • set_to_dummy_if_null(ops, inode_getattr);
    • set_to_dummy_if_null(ops, inode_delete);
    • set_to_dummy_if_null(ops, inode_setxattr);
    • set_to_dummy_if_null(ops, inode_post_setxattr);
    • set_to_dummy_if_null(ops, inode_getxattr);
    • set_to_dummy_if_null(ops, inode_listxattr);
    • set_to_dummy_if_null(ops, inode_removexattr);
    • set_to_dummy_if_null(ops, inode_need_killpriv);
    • set_to_dummy_if_null(ops, inode_killpriv);
    • set_to_dummy_if_null(ops, inode_getsecurity);
    • set_to_dummy_if_null(ops, inode_setsecurity);
    • set_to_dummy_if_null(ops, inode_listsecurity);
    • set_to_dummy_if_null(ops, inode_getsecid);
    • set_to_dummy_if_null(ops, file_permission);
    • set_to_dummy_if_null(ops, file_alloc_security);
    • set_to_dummy_if_null(ops, file_free_security);
    • set_to_dummy_if_null(ops, file_ioctl);
    • set_to_dummy_if_null(ops, file_mmap);
    • set_to_dummy_if_null(ops, file_mprotect);
    • set_to_dummy_if_null(ops, file_lock);
    • set_to_dummy_if_null(ops, file_fcntl);
    • set_to_dummy_if_null(ops, file_set_fowner);
    • set_to_dummy_if_null(ops, file_send_sigiotask);
    • set_to_dummy_if_null(ops, file_receive);
    • set_to_dummy_if_null(ops, dentry_open);
    • set_to_dummy_if_null(ops, task_create);
    • set_to_dummy_if_null(ops, task_alloc_security);
    • set_to_dummy_if_null(ops, task_free_security);
    • set_to_dummy_if_null(ops, task_setuid);
    • set_to_dummy_if_null(ops, task_post_setuid);
    • set_to_dummy_if_null(ops, task_setgid);
    • set_to_dummy_if_null(ops, task_setpgid);
    • set_to_dummy_if_null(ops, task_getpgid);
    • set_to_dummy_if_null(ops, task_getsid);
    • set_to_dummy_if_null(ops, task_getsecid);
    • set_to_dummy_if_null(ops, task_setgroups);
    • set_to_dummy_if_null(ops, task_setnice);
    • set_to_dummy_if_null(ops, task_setioprio);
    • set_to_dummy_if_null(ops, task_getioprio);
    • set_to_dummy_if_null(ops, task_setrlimit);
    • set_to_dummy_if_null(ops, task_setscheduler);
    • set_to_dummy_if_null(ops, task_getscheduler);
    • set_to_dummy_if_null(ops, task_movememory);
    • set_to_dummy_if_null(ops, task_wait);
    • set_to_dummy_if_null(ops, task_kill);
    • set_to_dummy_if_null(ops, task_prctl);
    • set_to_dummy_if_null(ops, task_reparent_to_init);
    • set_to_dummy_if_null(ops, task_to_inode);
    • set_to_dummy_if_null(ops, ipc_permission);
    • set_to_dummy_if_null(ops, ipc_getsecid);
    • set_to_dummy_if_null(ops, msg_msg_alloc_security);
    • set_to_dummy_if_null(ops, msg_msg_free_security);
    • set_to_dummy_if_null(ops, msg_queue_alloc_security);
    • set_to_dummy_if_null(ops, msg_queue_free_security);
    • set_to_dummy_if_null(ops, msg_queue_associate);
    • set_to_dummy_if_null(ops, msg_queue_msgctl);
    • set_to_dummy_if_null(ops, msg_queue_msgsnd);
    • set_to_dummy_if_null(ops, msg_queue_msgrcv);
    • set_to_dummy_if_null(ops, shm_alloc_security);
    • set_to_dummy_if_null(ops, shm_free_security);
    • set_to_dummy_if_null(ops, shm_associate);
    • set_to_dummy_if_null(ops, shm_shmctl);
    • set_to_dummy_if_null(ops, shm_shmat);
    • set_to_dummy_if_null(ops, sem_alloc_security);
    • set_to_dummy_if_null(ops, sem_free_security);
    • set_to_dummy_if_null(ops, sem_associate);
    • set_to_dummy_if_null(ops, sem_semctl);
    • set_to_dummy_if_null(ops, sem_semop);
    • set_to_dummy_if_null(ops, netlink_send);
    • set_to_dummy_if_null(ops, netlink_recv);
    • set_to_dummy_if_null(ops, register_security);
    • set_to_dummy_if_null(ops, d_instantiate);
    • set_to_dummy_if_null(ops, getprocattr);
    • set_to_dummy_if_null(ops, setprocattr);
    • set_to_dummy_if_null(ops, secid_to_secctx);
    • set_to_dummy_if_null(ops, secctx_to_secid);
    • set_to_dummy_if_null(ops, release_secctx);
      -#ifdef CONFIG_SECURITY_NETWORK
    • set_to_dummy_if_null(ops, unix_stream_connect);
    • set_to_dummy_if_null(ops, unix_may_send);
    • set_to_dummy_if_null(ops, socket_create);
    • set_to_dummy_if_null(ops, socket_post_create);
    • set_to_dummy_if_null(ops, socket_bind);
    • set_to_dummy_if_null(ops, socket_connect);
    • set_to_dummy_if_null(ops, socket_listen);
    • set_to_dummy_if_null(ops, socket_accept);
    • set_to_dummy_if_null(ops, socket_post_accept);
    • set_to_dummy_if_null(ops, socket_sendmsg);
    • set_to_dummy_if_null(ops, socket_recvmsg);
    • set_to_dummy_if_null(ops, socket_getsockname);
    • set_to_dummy_if_null(ops, socket_getpeername);
    • set_to_dummy_if_null(ops, socket_setsockopt);
    • set_to_dummy_if_null(ops, socket_getsockopt);
    • set_to_dummy_if_null(ops, socket_shutdown);
    • set_to_dummy_if_null(ops, socket_sock_rcv_skb);
    • set_to_dummy_if_null(ops, socket_getpeersec_stream);
    • set_to_dummy_if_null(ops, socket_getpeersec_dgram);
    • set_to_dummy_if_null(ops, sk_alloc_security);
    • set_to_dummy_if_null(ops, sk_free_security);
    • set_to_dummy_if_null(ops, sk_clone_security);
    • set_to_dummy_if_null(ops, sk_getsecid);
    • set_to_dummy_if_null(ops, sock_graft);
    • set_to_dummy_if_null(ops, inet_conn_request);
    • set_to_dummy_if_null(ops, inet_csk_clone);
    • set_to_dummy_if_null(ops, inet_conn_established);
    • set_to_dummy_if_null(ops, req_classify_flow);
    • #endif /* CONFIG_SECURITY_NETWORK */
      -#ifdef CONFIG_SECURITY_NETWORK_XFRM
    • set_to_dummy_if_null(ops, xfrm_policy_alloc_security);
    • set_to_dummy_if_null(ops, xfrm_policy_clone_security);
    • set_to_dummy_if_null(ops, xfrm_policy_free_security);
    • set_to_dummy_if_null(ops, xfrm_policy_delete_security);
    • set_to_dummy_if_null(ops, xfrm_state_alloc_security);
    • set_to_dummy_if_null(ops, xfrm_state_free_security);
    • set_to_dummy_if_null(ops, xfrm_state_delete_security);
    • set_to_dummy_if_null(ops, xfrm_policy_lookup);
    • set_to_dummy_if_null(ops, xfrm_state_pol_flow_match);
    • set_to_dummy_if_null(ops, xfrm_decode_session);
      -#endif /* CONFIG_SECURITY_NETWORK_XFRM */
      -#ifdef CONFIG_KEYS
    • set_to_dummy_if_null(ops, key_alloc);
    • set_to_dummy_if_null(ops, key_free);
    • set_to_dummy_if_null(ops, key_permission);
    • set_to_dummy_if_null(ops, key_getsecurity);
      -#endif /* CONFIG_KEYS */
      -#ifdef CONFIG_AUDIT
    • set_to_dummy_if_null(ops, audit_rule_init);
    • set_to_dummy_if_null(ops, audit_rule_known);
    • set_to_dummy_if_null(ops, audit_rule_match);
    • set_to_dummy_if_null(ops, audit_rule_free);
      -#endif
      -}
      -
      Index: linux-2.6/security/security.c
  • linux-2.6.orig/security/security.c 2008-07-03 20:13:49.000000000 +0200 +++ linux-2.6/security/security.c 2008-07-03 20:29:33.000000000 +0200 @@ -20,8 +20,8 @@ /* Boot-time LSM user choice */ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];

-/* things that live in dummy.c */
-extern struct security_operations dummy_security_ops;
+/* things that live in capability.c */
+extern struct security_operations default_security_ops;  extern void security_fixup_ops(struct security_operations *ops);  

 struct security_operations *security_ops; /* Initialized to NULL */ @@ -57,13 +57,8 @@ int __init security_init(void)  {

         printk(KERN_INFO "Security Framework initialized\n");  

  • if (verify(&dummy_security_ops)) {
  • printk(KERN_ERR "%s could not verify "
  • "dummy_security_ops structure.\n", __func__);
  • return -EIO;
  • }
    -
  • security_ops = &dummy_security_ops; + security_fixup_ops(&default_security_ops); + security_ops = &default_security_ops; do_security_initcalls();

         return 0;
@@ -122,7 +117,7 @@ int register_security(struct security_op return -EINVAL; }
- if (security_ops != &dummy_security_ops)
+ if (security_ops != &default_security_ops) return -EAGAIN; security_ops = ops;

--
--

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