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SELinux: Convert avc_audit to use lsm_audit.h 

Convert avc_audit in security/selinux/avc.c to use lsm_audit.h,
for better maintainability and for less code duplication.

 - changed selinux to use common_audit_data instead of
   avc_audit_data
 - eliminated code in avc.c and used code from lsm_audit.h instead.

I have tested to make sure that the avcs look the same before and
after this patch.

Signed-off-by: Thomas Liu <tliu@redhat.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Thomas Liu 2009-07-10 10:31:04 -04:00 committed by James Morris
parent 65c3f0a2d0
commit 8113a8d80f
8 changed files with 134 additions and 297 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
security/Makefile
View File

@ -16,9 +16,7 @@ obj-$(CONFIG_SECURITYFS) += inode.o
# Must precede capability.o in order to stack properly.
obj-$(CONFIG_SECURITY_SELINUX) += selinux/built-in.o
obj-$(CONFIG_SECURITY_SMACK) += smack/built-in.o
ifeq ($(CONFIG_AUDIT),y)
obj-$(CONFIG_SECURITY_SMACK) += lsm_audit.o
endif
obj-$(CONFIG_AUDIT) += lsm_audit.o
obj-$(CONFIG_SECURITY_TOMOYO) += tomoyo/built-in.o
obj-$(CONFIG_SECURITY_ROOTPLUG) += root_plug.o
obj-$(CONFIG_CGROUP_DEVICE) += device_cgroup.o

218
security/selinux/avc.c
View File

@ -492,23 +492,50 @@ out:
return node;
}
static inline void avc_print_ipv6_addr(struct audit_buffer *ab,
struct in6_addr *addr, __be16 port,
char *name1, char *name2)
/**
* avc_audit_pre_callback - SELinux specific information
* will be called by generic audit code
* @ab: the audit buffer
* @a: audit_data
*/
static void avc_audit_pre_callback(struct audit_buffer *ab, void *a)
{
if (!ipv6_addr_any(addr))
audit_log_format(ab, " %s=%pI6", name1, addr);
if (port)
audit_log_format(ab, " %s=%d", name2, ntohs(port));
struct common_audit_data *ad = a;
struct av_decision *avd = ad->selinux_audit_data.avd;
u32 requested = ad->selinux_audit_data.requested;
int result = ad->selinux_audit_data.result;
u32 denied, audited;
denied = requested & ~avd->allowed;
if (denied) {
audited = denied;
if (!(audited & avd->auditdeny))
return;
} else if (result) {
audited = denied = requested;
} else {
audited = requested;
if (!(audited & avd->auditallow))
return;
}
audit_log_format(ab, "avc: %s ", denied ? "denied" : "granted");
avc_dump_av(ab, ad->selinux_audit_data.tclass,
ad->selinux_audit_data.audited);
audit_log_format(ab, " for ");
}
static inline void avc_print_ipv4_addr(struct audit_buffer *ab, __be32 addr,
__be16 port, char *name1, char *name2)
/**
* avc_audit_post_callback - SELinux specific information
* will be called by generic audit code
* @ab: the audit buffer
* @a: audit_data
*/
static void avc_audit_post_callback(struct audit_buffer *ab, void *a)
{
if (addr)
audit_log_format(ab, " %s=%pI4", name1, &addr);
if (port)
audit_log_format(ab, " %s=%d", name2, ntohs(port));
struct common_audit_data *ad = a;
audit_log_format(ab, " ");
avc_dump_query(ab, ad->selinux_audit_data.ssid,
ad->selinux_audit_data.tsid,
ad->selinux_audit_data.tclass);
}
/**
@ -532,163 +559,14 @@ static inline void avc_print_ipv4_addr(struct audit_buffer *ab, __be32 addr,
*/
void avc_audit(u32 ssid, u32 tsid,
u16 tclass, u32 requested,
struct av_decision *avd, int result, struct avc_audit_data *a)
struct av_decision *avd, int result, struct common_audit_data *a)
{
struct task_struct *tsk = current;
struct inode *inode = NULL;
u32 denied, audited;
struct audit_buffer *ab;
denied = requested & ~avd->allowed;
if (denied) {
audited = denied;
if (!(audited & avd->auditdeny))
return;
} else if (result) {
audited = denied = requested;
} else {
audited = requested;
if (!(audited & avd->auditallow))
return;
}
ab = audit_log_start(current->audit_context, GFP_ATOMIC, AUDIT_AVC);
if (!ab)
return; /* audit_panic has been called */
audit_log_format(ab, "avc: %s ", denied ? "denied" : "granted");
avc_dump_av(ab, tclass, audited);
audit_log_format(ab, " for ");
if (a && a->tsk)
tsk = a->tsk;
if (tsk && tsk->pid) {
audit_log_format(ab, " pid=%d comm=", tsk->pid);
audit_log_untrustedstring(ab, tsk->comm);
}
if (a) {
switch (a->type) {
case AVC_AUDIT_DATA_IPC:
audit_log_format(ab, " key=%d", a->u.ipc_id);
break;
case AVC_AUDIT_DATA_CAP:
audit_log_format(ab, " capability=%d", a->u.cap);
break;
case AVC_AUDIT_DATA_FS:
if (a->u.fs.path.dentry) {
struct dentry *dentry = a->u.fs.path.dentry;
if (a->u.fs.path.mnt) {
audit_log_d_path(ab, "path=",
&a->u.fs.path);
} else {
audit_log_format(ab, " name=");
audit_log_untrustedstring(ab, dentry->d_name.name);
}
inode = dentry->d_inode;
} else if (a->u.fs.inode) {
struct dentry *dentry;
inode = a->u.fs.inode;
dentry = d_find_alias(inode);
if (dentry) {
audit_log_format(ab, " name=");
audit_log_untrustedstring(ab, dentry->d_name.name);
dput(dentry);
}
}
if (inode)
audit_log_format(ab, " dev=%s ino=%lu",
inode->i_sb->s_id,
inode->i_ino);
break;
case AVC_AUDIT_DATA_NET:
if (a->u.net.sk) {
struct sock *sk = a->u.net.sk;
struct unix_sock *u;
int len = 0;
char *p = NULL;
switch (sk->sk_family) {
case AF_INET: {
struct inet_sock *inet = inet_sk(sk);
avc_print_ipv4_addr(ab, inet->rcv_saddr,
inet->sport,
"laddr", "lport");
avc_print_ipv4_addr(ab, inet->daddr,
inet->dport,
"faddr", "fport");
break;
}
case AF_INET6: {
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *inet6 = inet6_sk(sk);
avc_print_ipv6_addr(ab, &inet6->rcv_saddr,
inet->sport,
"laddr", "lport");
avc_print_ipv6_addr(ab, &inet6->daddr,
inet->dport,
"faddr", "fport");
break;
}
case AF_UNIX:
u = unix_sk(sk);
if (u->dentry) {
struct path path = {
.dentry = u->dentry,
.mnt = u->mnt
};
audit_log_d_path(ab, "path=",
&path);
break;
}
if (!u->addr)
break;
len = u->addr->len-sizeof(short);
p = &u->addr->name->sun_path[0];
audit_log_format(ab, " path=");
if (*p)
audit_log_untrustedstring(ab, p);
else
audit_log_n_hex(ab, p, len);
break;
}
}
switch (a->u.net.family) {
case AF_INET:
avc_print_ipv4_addr(ab, a->u.net.v4info.saddr,
a->u.net.sport,
"saddr", "src");
avc_print_ipv4_addr(ab, a->u.net.v4info.daddr,
a->u.net.dport,
"daddr", "dest");
break;
case AF_INET6:
avc_print_ipv6_addr(ab, &a->u.net.v6info.saddr,
a->u.net.sport,
"saddr", "src");
avc_print_ipv6_addr(ab, &a->u.net.v6info.daddr,
a->u.net.dport,
"daddr", "dest");
break;
}
if (a->u.net.netif > 0) {
struct net_device *dev;
/* NOTE: we always use init's namespace */
dev = dev_get_by_index(&init_net,
a->u.net.netif);
if (dev) {
audit_log_format(ab, " netif=%s",
dev->name);
dev_put(dev);
}
}
break;
}
}
audit_log_format(ab, " ");
avc_dump_query(ab, ssid, tsid, tclass);
audit_log_end(ab);
a->selinux_audit_data.avd = avd;
a->selinux_audit_data.tclass = tclass;
a->selinux_audit_data.requested = requested;
a->lsm_pre_audit = avc_audit_pre_callback;
a->lsm_post_audit = avc_audit_post_callback;
common_lsm_audit(a);
}
/**
@ -956,7 +834,7 @@ out:
* another -errno upon other errors.
*/
int avc_has_perm(u32 ssid, u32 tsid, u16 tclass,
u32 requested, struct avc_audit_data *auditdata)
u32 requested, struct common_audit_data *auditdata)
{
struct av_decision avd;
int rc;

142
security/selinux/hooks.c
View File

@ -1478,14 +1478,14 @@ static int task_has_capability(struct task_struct *tsk,
const struct cred *cred,
int cap, int audit)
{
struct avc_audit_data ad;
struct common_audit_data ad;
struct av_decision avd;
u16 sclass;
u32 sid = cred_sid(cred);
u32 av = CAP_TO_MASK(cap);
int rc;
AVC_AUDIT_DATA_INIT(&ad, CAP);
COMMON_AUDIT_DATA_INIT(&ad, CAP);
ad.tsk = tsk;
ad.u.cap = cap;
@ -1524,10 +1524,10 @@ static int task_has_system(struct task_struct *tsk,
static int inode_has_perm(const struct cred *cred,
struct inode *inode,
u32 perms,
struct avc_audit_data *adp)
struct common_audit_data *adp)
{
struct inode_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid;
if (unlikely(IS_PRIVATE(inode)))
@ -1538,7 +1538,7 @@ static int inode_has_perm(const struct cred *cred,
if (!adp) {
adp = &ad;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.inode = inode;
}
@ -1554,9 +1554,9 @@ static inline int dentry_has_perm(const struct cred *cred,
u32 av)
{
struct inode *inode = dentry->d_inode;
struct avc_audit_data ad;
struct common_audit_data ad;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.mnt = mnt;
ad.u.fs.path.dentry = dentry;
return inode_has_perm(cred, inode, av, &ad);
@ -1576,11 +1576,11 @@ static int file_has_perm(const struct cred *cred,
{
struct file_security_struct *fsec = file->f_security;
struct inode *inode = file->f_path.dentry->d_inode;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = cred_sid(cred);
int rc;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path = file->f_path;
if (sid != fsec->sid) {
@ -1611,7 +1611,7 @@ static int may_create(struct inode *dir,
struct inode_security_struct *dsec;
struct superblock_security_struct *sbsec;
u32 sid, newsid;
struct avc_audit_data ad;
struct common_audit_data ad;
int rc;
dsec = dir->i_security;
@ -1620,7 +1620,7 @@ static int may_create(struct inode *dir,
sid = tsec->sid;
newsid = tsec->create_sid;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = dentry;
rc = avc_has_perm(sid, dsec->sid, SECCLASS_DIR,
@ -1664,7 +1664,7 @@ static int may_link(struct inode *dir,
{
struct inode_security_struct *dsec, *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
u32 av;
int rc;
@ -1672,7 +1672,7 @@ static int may_link(struct inode *dir,
dsec = dir->i_security;
isec = dentry->d_inode->i_security;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = dentry;
av = DIR__SEARCH;
@ -1707,7 +1707,7 @@ static inline int may_rename(struct inode *old_dir,
struct dentry *new_dentry)
{
struct inode_security_struct *old_dsec, *new_dsec, *old_isec, *new_isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
u32 av;
int old_is_dir, new_is_dir;
@ -1718,7 +1718,7 @@ static inline int may_rename(struct inode *old_dir,
old_is_dir = S_ISDIR(old_dentry->d_inode->i_mode);
new_dsec = new_dir->i_security;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = old_dentry;
rc = avc_has_perm(sid, old_dsec->sid, SECCLASS_DIR,
@ -1760,7 +1760,7 @@ static inline int may_rename(struct inode *old_dir,
static int superblock_has_perm(const struct cred *cred,
struct super_block *sb,
u32 perms,
struct avc_audit_data *ad)
struct common_audit_data *ad)
{
struct superblock_security_struct *sbsec;
u32 sid = cred_sid(cred);
@ -2100,7 +2100,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
const struct task_security_struct *old_tsec;
struct task_security_struct *new_tsec;
struct inode_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
struct inode *inode = bprm->file->f_path.dentry->d_inode;
int rc;
@ -2138,7 +2138,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
return rc;
}
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path = bprm->file->f_path;
if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID)
@ -2231,7 +2231,7 @@ extern struct dentry *selinux_null;
static inline void flush_unauthorized_files(const struct cred *cred,
struct files_struct *files)
{
struct avc_audit_data ad;
struct common_audit_data ad;
struct file *file, *devnull = NULL;
struct tty_struct *tty;
struct fdtable *fdt;
@ -2265,7 +2265,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
/* Revalidate access to inherited open files. */
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
spin_lock(&files->file_lock);
for (;;) {
@ -2514,7 +2514,7 @@ out:
static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
const struct cred *cred = current_cred();
struct avc_audit_data ad;
struct common_audit_data ad;
int rc;
rc = superblock_doinit(sb, data);
@ -2525,7 +2525,7 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
if (flags & MS_KERNMOUNT)
return 0;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = sb->s_root;
return superblock_has_perm(cred, sb, FILESYSTEM__MOUNT, &ad);
}
@ -2533,9 +2533,9 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
static int selinux_sb_statfs(struct dentry *dentry)
{
const struct cred *cred = current_cred();
struct avc_audit_data ad;
struct common_audit_data ad;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = dentry->d_sb->s_root;
return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
}
@ -2755,7 +2755,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
struct inode *inode = dentry->d_inode;
struct inode_security_struct *isec = inode->i_security;
struct superblock_security_struct *sbsec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 newsid, sid = current_sid();
int rc = 0;
@ -2769,7 +2769,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
if (!is_owner_or_cap(inode))
return -EPERM;
AVC_AUDIT_DATA_INIT(&ad, FS);
COMMON_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = dentry;
rc = avc_has_perm(sid, isec->sid, isec->sclass,
@ -3401,7 +3401,7 @@ static void selinux_task_to_inode(struct task_struct *p,
/* Returns error only if unable to parse addresses */
static int selinux_parse_skb_ipv4(struct sk_buff *skb,
struct avc_audit_data *ad, u8 *proto)
struct common_audit_data *ad, u8 *proto)
{
int offset, ihlen, ret = -EINVAL;
struct iphdr _iph, *ih;
@ -3482,7 +3482,7 @@ out:
/* Returns error only if unable to parse addresses */
static int selinux_parse_skb_ipv6(struct sk_buff *skb,
struct avc_audit_data *ad, u8 *proto)
struct common_audit_data *ad, u8 *proto)
{
u8 nexthdr;
int ret = -EINVAL, offset;
@ -3553,7 +3553,7 @@ out:
#endif /* IPV6 */
static int selinux_parse_skb(struct sk_buff *skb, struct avc_audit_data *ad,
static int selinux_parse_skb(struct sk_buff *skb, struct common_audit_data *ad,
char **_addrp, int src, u8 *proto)
{
char *addrp;
@ -3635,7 +3635,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
u32 perms)
{
struct inode_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid;
int err = 0;
@ -3645,7 +3645,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
goto out;
sid = task_sid(task);
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sk = sock->sk;
err = avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad);
@ -3732,7 +3732,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
if (family == PF_INET || family == PF_INET6) {
char *addrp;
struct inode_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
struct sockaddr_in *addr4 = NULL;
struct sockaddr_in6 *addr6 = NULL;
unsigned short snum;
@ -3761,7 +3761,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
snum, &sid);
if (err)
goto out;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sport = htons(snum);
ad.u.net.family = family;
err = avc_has_perm(isec->sid, sid,
@ -3794,7 +3794,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
if (err)
goto out;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sport = htons(snum);
ad.u.net.family = family;
@ -3828,7 +3828,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
isec = SOCK_INODE(sock)->i_security;
if (isec->sclass == SECCLASS_TCP_SOCKET ||
isec->sclass == SECCLASS_DCCP_SOCKET) {
struct avc_audit_data ad;
struct common_audit_data ad;
struct sockaddr_in *addr4 = NULL;
struct sockaddr_in6 *addr6 = NULL;
unsigned short snum;
@ -3853,7 +3853,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
perm = (isec->sclass == SECCLASS_TCP_SOCKET) ?
TCP_SOCKET__NAME_CONNECT : DCCP_SOCKET__NAME_CONNECT;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.dport = htons(snum);
ad.u.net.family = sk->sk_family;
err = avc_has_perm(isec->sid, sid, isec->sclass, perm, &ad);
@ -3943,13 +3943,13 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
struct sk_security_struct *ssec;
struct inode_security_struct *isec;
struct inode_security_struct *other_isec;
struct avc_audit_data ad;
struct common_audit_data ad;
int err;
isec = SOCK_INODE(sock)->i_security;
other_isec = SOCK_INODE(other)->i_security;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sk = other->sk;
err = avc_has_perm(isec->sid, other_isec->sid,
@ -3975,13 +3975,13 @@ static int selinux_socket_unix_may_send(struct socket *sock,
{
struct inode_security_struct *isec;
struct inode_security_struct *other_isec;
struct avc_audit_data ad;
struct common_audit_data ad;
int err;
isec = SOCK_INODE(sock)->i_security;
other_isec = SOCK_INODE(other)->i_security;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sk = other->sk;
err = avc_has_perm(isec->sid, other_isec->sid,
@ -3994,7 +3994,7 @@ static int selinux_socket_unix_may_send(struct socket *sock,
static int selinux_inet_sys_rcv_skb(int ifindex, char *addrp, u16 family,
u32 peer_sid,
struct avc_audit_data *ad)
struct common_audit_data *ad)
{
int err;
u32 if_sid;
@ -4022,10 +4022,10 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
struct sk_security_struct *sksec = sk->sk_security;
u32 peer_sid;
u32 sk_sid = sksec->sid;
struct avc_audit_data ad;
struct common_audit_data ad;
char *addrp;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.netif = skb->iif;
ad.u.net.family = family;
err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
@ -4063,7 +4063,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
struct sk_security_struct *sksec = sk->sk_security;
u16 family = sk->sk_family;
u32 sk_sid = sksec->sid;
struct avc_audit_data ad;
struct common_audit_data ad;
char *addrp;
u8 secmark_active;
u8 peerlbl_active;
@ -4087,7 +4087,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
if (!secmark_active && !peerlbl_active)
return 0;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.netif = skb->iif;
ad.u.net.family = family;
err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
@ -4345,7 +4345,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
int err;
char *addrp;
u32 peer_sid;
struct avc_audit_data ad;
struct common_audit_data ad;
u8 secmark_active;
u8 netlbl_active;
u8 peerlbl_active;
@ -4362,7 +4362,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
if (selinux_skb_peerlbl_sid(skb, family, &peer_sid) != 0)
return NF_DROP;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.netif = ifindex;
ad.u.net.family = family;
if (selinux_parse_skb(skb, &ad, &addrp, 1, NULL) != 0)
@ -4450,7 +4450,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
{
struct sock *sk = skb->sk;
struct sk_security_struct *sksec;
struct avc_audit_data ad;
struct common_audit_data ad;
char *addrp;
u8 proto;
@ -4458,7 +4458,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
return NF_ACCEPT;
sksec = sk->sk_security;
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.netif = ifindex;
ad.u.net.family = family;
if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto))
@ -4482,7 +4482,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
u32 secmark_perm;
u32 peer_sid;
struct sock *sk;
struct avc_audit_data ad;
struct common_audit_data ad;
char *addrp;
u8 secmark_active;
u8 peerlbl_active;
@ -4541,7 +4541,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
secmark_perm = PACKET__SEND;
}
AVC_AUDIT_DATA_INIT(&ad, NET);
COMMON_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.netif = ifindex;
ad.u.net.family = family;
if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL))
@ -4611,13 +4611,13 @@ static int selinux_netlink_send(struct sock *sk, struct sk_buff *skb)
static int selinux_netlink_recv(struct sk_buff *skb, int capability)
{
int err;
struct avc_audit_data ad;
struct common_audit_data ad;
err = cap_netlink_recv(skb, capability);
if (err)
return err;
AVC_AUDIT_DATA_INIT(&ad, CAP);
COMMON_AUDIT_DATA_INIT(&ad, CAP);
ad.u.cap = capability;
return avc_has_perm(NETLINK_CB(skb).sid, NETLINK_CB(skb).sid,
@ -4676,12 +4676,12 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
u32 perms)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
isec = ipc_perms->security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = ipc_perms->key;
return avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad);
@ -4701,7 +4701,7 @@ static void selinux_msg_msg_free_security(struct msg_msg *msg)
static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
int rc;
@ -4711,7 +4711,7 @@ static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
isec = msq->q_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = msq->q_perm.key;
rc = avc_has_perm(sid, isec->sid, SECCLASS_MSGQ,
@ -4731,12 +4731,12 @@ static void selinux_msg_queue_free_security(struct msg_queue *msq)
static int selinux_msg_queue_associate(struct msg_queue *msq, int msqflg)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
isec = msq->q_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = msq->q_perm.key;
return avc_has_perm(sid, isec->sid, SECCLASS_MSGQ,
@ -4775,7 +4775,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
{
struct ipc_security_struct *isec;
struct msg_security_struct *msec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
int rc;
@ -4796,7 +4796,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
return rc;
}
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = msq->q_perm.key;
/* Can this process write to the queue? */
@ -4820,14 +4820,14 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
{
struct ipc_security_struct *isec;
struct msg_security_struct *msec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = task_sid(target);
int rc;
isec = msq->q_perm.security;
msec = msg->security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = msq->q_perm.key;
rc = avc_has_perm(sid, isec->sid,
@ -4842,7 +4842,7 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
static int selinux_shm_alloc_security(struct shmid_kernel *shp)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
int rc;
@ -4852,7 +4852,7 @@ static int selinux_shm_alloc_security(struct shmid_kernel *shp)
isec = shp->shm_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = shp->shm_perm.key;
rc = avc_has_perm(sid, isec->sid, SECCLASS_SHM,
@ -4872,12 +4872,12 @@ static void selinux_shm_free_security(struct shmid_kernel *shp)
static int selinux_shm_associate(struct shmid_kernel *shp, int shmflg)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
isec = shp->shm_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = shp->shm_perm.key;
return avc_has_perm(sid, isec->sid, SECCLASS_SHM,
@ -4934,7 +4934,7 @@ static int selinux_shm_shmat(struct shmid_kernel *shp,
static int selinux_sem_alloc_security(struct sem_array *sma)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
int rc;
@ -4944,7 +4944,7 @@ static int selinux_sem_alloc_security(struct sem_array *sma)
isec = sma->sem_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = sma->sem_perm.key;
rc = avc_has_perm(sid, isec->sid, SECCLASS_SEM,
@ -4964,12 +4964,12 @@ static void selinux_sem_free_security(struct sem_array *sma)
static int selinux_sem_associate(struct sem_array *sma, int semflg)
{
struct ipc_security_struct *isec;
struct avc_audit_data ad;
struct common_audit_data ad;
u32 sid = current_sid();
isec = sma->sem_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
COMMON_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = sma->sem_perm.key;
return avc_has_perm(sid, isec->sid, SECCLASS_SEM,

49
security/selinux/include/avc.h
View File

@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/audit.h>
#include <linux/lsm_audit.h>
#include <linux/in6.h>
#include <linux/path.h>
#include <asm/system.h>
@ -36,48 +37,6 @@ struct inode;
struct sock;
struct sk_buff;
/* Auxiliary data to use in generating the audit record. */
struct avc_audit_data {
char type;
#define AVC_AUDIT_DATA_FS 1
#define AVC_AUDIT_DATA_NET 2
#define AVC_AUDIT_DATA_CAP 3
#define AVC_AUDIT_DATA_IPC 4
struct task_struct *tsk;
union {
struct {
struct path path;
struct inode *inode;
} fs;
struct {
int netif;
struct sock *sk;
u16 family;
__be16 dport;
__be16 sport;
union {
struct {
__be32 daddr;
__be32 saddr;
} v4;
struct {
struct in6_addr daddr;
struct in6_addr saddr;
} v6;
} fam;
} net;
int cap;
int ipc_id;
} u;
};
#define v4info fam.v4
#define v6info fam.v6
/* Initialize an AVC audit data structure. */
#define AVC_AUDIT_DATA_INIT(_d,_t) \
{ memset((_d), 0, sizeof(struct avc_audit_data)); (_d)->type = AVC_AUDIT_DATA_##_t; }
/*
* AVC statistics
*/
@ -98,7 +57,9 @@ void __init avc_init(void);
void avc_audit(u32 ssid, u32 tsid,
u16 tclass, u32 requested,
struct av_decision *avd, int result, struct avc_audit_data *auditdata);
struct av_decision *avd,
int result,
struct common_audit_data *a);
#define AVC_STRICT 1 /* Ignore permissive mode. */
int avc_has_perm_noaudit(u32 ssid, u32 tsid,
@ -108,7 +69,7 @@ int avc_has_perm_noaudit(u32 ssid, u32 tsid,
int avc_has_perm(u32 ssid, u32 tsid,
u16 tclass, u32 requested,
struct avc_audit_data *auditdata);
struct common_audit_data *auditdata);
u32 avc_policy_seqno(void);

4
security/selinux/include/netlabel.h
View File

@ -59,7 +59,7 @@ int selinux_netlbl_socket_post_create(struct sock *sk, u16 family);
int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
struct sk_buff *skb,
u16 family,
struct avc_audit_data *ad);
struct common_audit_data *ad);
int selinux_netlbl_socket_setsockopt(struct socket *sock,
int level,
int optname);
@ -129,7 +129,7 @@ static inline int selinux_netlbl_socket_post_create(struct sock *sk,
static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
struct sk_buff *skb,
u16 family,
struct avc_audit_data *ad)
struct common_audit_data *ad)
{
return 0;
}

8
security/selinux/include/xfrm.h
View File

@ -41,9 +41,9 @@ static inline int selinux_xfrm_enabled(void)
}
int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
struct avc_audit_data *ad);
struct common_audit_data *ad);
int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
struct avc_audit_data *ad, u8 proto);
struct common_audit_data *ad, u8 proto);
int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
static inline void selinux_xfrm_notify_policyload(void)
@ -57,13 +57,13 @@ static inline int selinux_xfrm_enabled(void)
}
static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
struct avc_audit_data *ad)
struct common_audit_data *ad)
{
return 0;
}
static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
struct avc_audit_data *ad, u8 proto)
struct common_audit_data *ad, u8 proto)
{
return 0;
}

2
security/selinux/netlabel.c
View File

@ -342,7 +342,7 @@ int selinux_netlbl_socket_post_create(struct sock *sk, u16 family)
int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
struct sk_buff *skb,
u16 family,
struct avc_audit_data *ad)
struct common_audit_data *ad)
{
int rc;
u32 nlbl_sid;

4
security/selinux/xfrm.c
View File

@ -401,7 +401,7 @@ int selinux_xfrm_state_delete(struct xfrm_state *x)
* gone thru the IPSec process.
*/
int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
struct avc_audit_data *ad)
struct common_audit_data *ad)
{
int i, rc = 0;
struct sec_path *sp;
@ -442,7 +442,7 @@ int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
* checked in the selinux_xfrm_state_pol_flow_match hook above.
*/
int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
struct avc_audit_data *ad, u8 proto)
struct common_audit_data *ad, u8 proto)
{
struct dst_entry *dst;
int rc = 0;