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Diffstat (limited to 'security/smack/smack_lsm.c')
-rw-r--r--security/smack/smack_lsm.c265
1 files changed, 244 insertions, 21 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 7091b46adab2..154548ea7d87 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -54,6 +54,149 @@
LIST_HEAD(smk_ipv6_port_list);
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static void smk_bu_mode(int mode, char *s)
+{
+ int i = 0;
+
+ if (mode & MAY_READ)
+ s[i++] = 'r';
+ if (mode & MAY_WRITE)
+ s[i++] = 'w';
+ if (mode & MAY_EXEC)
+ s[i++] = 'x';
+ if (mode & MAY_APPEND)
+ s[i++] = 'a';
+ if (mode & MAY_TRANSMUTE)
+ s[i++] = 't';
+ if (mode & MAY_LOCK)
+ s[i++] = 'l';
+ if (i == 0)
+ s[i++] = '-';
+ s[i] = '\0';
+}
+#endif
+
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static int smk_bu_note(char *note, struct smack_known *sskp, char *osp,
+ int mode, int rc)
+{
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+ return rc;
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) %s\n",
+ sskp->smk_known, osp, acc, note);
+ return 0;
+}
+#else
+#define smk_bu_note(note, sskp, osp, mode, RC) (RC)
+#endif
+
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static int smk_bu_current(char *note, char *osp, int mode, int rc)
+{
+ struct task_smack *tsp = current_security();
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+ return rc;
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) %s %s\n",
+ tsp->smk_task->smk_known, osp, acc, current->comm, note);
+ return 0;
+}
+#else
+#define smk_bu_current(note, osp, mode, RC) (RC)
+#endif
+
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static int smk_bu_task(struct task_struct *otp, int mode, int rc)
+{
+ struct task_smack *tsp = current_security();
+ struct task_smack *otsp = task_security(otp);
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+ return rc;
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) %s to %s\n",
+ tsp->smk_task->smk_known, otsp->smk_task->smk_known, acc,
+ current->comm, otp->comm);
+ return 0;
+}
+#else
+#define smk_bu_task(otp, mode, RC) (RC)
+#endif
+
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static int smk_bu_inode(struct inode *inode, int mode, int rc)
+{
+ struct task_smack *tsp = current_security();
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+ return rc;
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) inode=(%s %ld) %s\n",
+ tsp->smk_task->smk_known, smk_of_inode(inode), acc,
+ inode->i_sb->s_id, inode->i_ino, current->comm);
+ return 0;
+}
+#else
+#define smk_bu_inode(inode, mode, RC) (RC)
+#endif
+
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static int smk_bu_file(struct file *file, int mode, int rc)
+{
+ struct task_smack *tsp = current_security();
+ struct smack_known *sskp = tsp->smk_task;
+ struct inode *inode = file->f_inode;
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+ return rc;
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) file=(%s %ld %s) %s\n",
+ sskp->smk_known, (char *)file->f_security, acc,
+ inode->i_sb->s_id, inode->i_ino, file->f_dentry->d_name.name,
+ current->comm);
+ return 0;
+}
+#else
+#define smk_bu_file(file, mode, RC) (RC)
+#endif
+
+#ifdef CONFIG_SECURITY_SMACK_BRINGUP
+static int smk_bu_credfile(const struct cred *cred, struct file *file,
+ int mode, int rc)
+{
+ struct task_smack *tsp = cred->security;
+ struct smack_known *sskp = tsp->smk_task;
+ struct inode *inode = file->f_inode;
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+ return rc;
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) file=(%s %ld %s) %s\n",
+ sskp->smk_known, smk_of_inode(inode), acc,
+ inode->i_sb->s_id, inode->i_ino, file->f_dentry->d_name.name,
+ current->comm);
+ return 0;
+}
+#else
+#define smk_bu_credfile(cred, file, mode, RC) (RC)
+#endif
+
/**
* smk_fetch - Fetch the smack label from a file.
* @ip: a pointer to the inode
@@ -507,6 +650,7 @@ static int smack_sb_statfs(struct dentry *dentry)
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
rc = smk_curacc(sbp->smk_floor, MAY_READ, &ad);
+ rc = smk_bu_current("statfs", sbp->smk_floor, MAY_READ, rc);
return rc;
}
@@ -697,11 +841,13 @@ static int smack_inode_link(struct dentry *old_dentry, struct inode *dir,
isp = smk_of_inode(old_dentry->d_inode);
rc = smk_curacc(isp, MAY_WRITE, &ad);
+ rc = smk_bu_inode(old_dentry->d_inode, MAY_WRITE, rc);
if (rc == 0 && new_dentry->d_inode != NULL) {
isp = smk_of_inode(new_dentry->d_inode);
smk_ad_setfield_u_fs_path_dentry(&ad, new_dentry);
rc = smk_curacc(isp, MAY_WRITE, &ad);
+ rc = smk_bu_inode(new_dentry->d_inode, MAY_WRITE, rc);
}
return rc;
@@ -728,6 +874,7 @@ static int smack_inode_unlink(struct inode *dir, struct dentry *dentry)
* You need write access to the thing you're unlinking
*/
rc = smk_curacc(smk_of_inode(ip), MAY_WRITE, &ad);
+ rc = smk_bu_inode(ip, MAY_WRITE, rc);
if (rc == 0) {
/*
* You also need write access to the containing directory
@@ -735,6 +882,7 @@ static int smack_inode_unlink(struct inode *dir, struct dentry *dentry)
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_INODE);
smk_ad_setfield_u_fs_inode(&ad, dir);
rc = smk_curacc(smk_of_inode(dir), MAY_WRITE, &ad);
+ rc = smk_bu_inode(dir, MAY_WRITE, rc);
}
return rc;
}
@@ -759,6 +907,7 @@ static int smack_inode_rmdir(struct inode *dir, struct dentry *dentry)
* You need write access to the thing you're removing
*/
rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
+ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
if (rc == 0) {
/*
* You also need write access to the containing directory
@@ -766,6 +915,7 @@ static int smack_inode_rmdir(struct inode *dir, struct dentry *dentry)
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_INODE);
smk_ad_setfield_u_fs_inode(&ad, dir);
rc = smk_curacc(smk_of_inode(dir), MAY_WRITE, &ad);
+ rc = smk_bu_inode(dir, MAY_WRITE, rc);
}
return rc;
@@ -797,11 +947,13 @@ static int smack_inode_rename(struct inode *old_inode,
isp = smk_of_inode(old_dentry->d_inode);
rc = smk_curacc(isp, MAY_READWRITE, &ad);
+ rc = smk_bu_inode(old_dentry->d_inode, MAY_READWRITE, rc);
if (rc == 0 && new_dentry->d_inode != NULL) {
isp = smk_of_inode(new_dentry->d_inode);
smk_ad_setfield_u_fs_path_dentry(&ad, new_dentry);
rc = smk_curacc(isp, MAY_READWRITE, &ad);
+ rc = smk_bu_inode(new_dentry->d_inode, MAY_READWRITE, rc);
}
return rc;
}
@@ -819,6 +971,7 @@ static int smack_inode_permission(struct inode *inode, int mask)
{
struct smk_audit_info ad;
int no_block = mask & MAY_NOT_BLOCK;
+ int rc;
mask &= (MAY_READ|MAY_WRITE|MAY_EXEC|MAY_APPEND);
/*
@@ -832,7 +985,9 @@ static int smack_inode_permission(struct inode *inode, int mask)
return -ECHILD;
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_INODE);
smk_ad_setfield_u_fs_inode(&ad, inode);
- return smk_curacc(smk_of_inode(inode), mask, &ad);
+ rc = smk_curacc(smk_of_inode(inode), mask, &ad);
+ rc = smk_bu_inode(inode, mask, rc);
+ return rc;
}
/**
@@ -845,6 +1000,8 @@ static int smack_inode_permission(struct inode *inode, int mask)
static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct smk_audit_info ad;
+ int rc;
+
/*
* Need to allow for clearing the setuid bit.
*/
@@ -853,7 +1010,9 @@ static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr)
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
- return smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
+ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
+ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ return rc;
}
/**
@@ -867,13 +1026,16 @@ static int smack_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
{
struct smk_audit_info ad;
struct path path;
+ int rc;
path.dentry = dentry;
path.mnt = mnt;
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, path);
- return smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
+ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
+ rc = smk_bu_inode(dentry->d_inode, MAY_READ, rc);
+ return rc;
}
/**
@@ -932,8 +1094,10 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
- if (rc == 0)
+ if (rc == 0) {
rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
+ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ }
return rc;
}
@@ -993,11 +1157,14 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
static int smack_inode_getxattr(struct dentry *dentry, const char *name)
{
struct smk_audit_info ad;
+ int rc;
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
- return smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
+ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
+ rc = smk_bu_inode(dentry->d_inode, MAY_READ, rc);
+ return rc;
}
/**
@@ -1033,6 +1200,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
+ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
if (rc != 0)
return rc;
@@ -1213,11 +1381,15 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
- if (_IOC_DIR(cmd) & _IOC_WRITE)
+ if (_IOC_DIR(cmd) & _IOC_WRITE) {
rc = smk_curacc(file->f_security, MAY_WRITE, &ad);
+ rc = smk_bu_file(file, MAY_WRITE, rc);
+ }
- if (rc == 0 && (_IOC_DIR(cmd) & _IOC_READ))
+ if (rc == 0 && (_IOC_DIR(cmd) & _IOC_READ)) {
rc = smk_curacc(file->f_security, MAY_READ, &ad);
+ rc = smk_bu_file(file, MAY_READ, rc);
+ }
return rc;
}
@@ -1232,10 +1404,13 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
static int smack_file_lock(struct file *file, unsigned int cmd)
{
struct smk_audit_info ad;
+ int rc;
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
- return smk_curacc(file->f_security, MAY_LOCK, &ad);
+ rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
+ rc = smk_bu_file(file, MAY_LOCK, rc);
+ return rc;
}
/**
@@ -1265,12 +1440,14 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
+ rc = smk_bu_file(file, MAY_LOCK, rc);
break;
case F_SETOWN:
case F_SETSIG:
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
rc = smk_curacc(file->f_security, MAY_WRITE, &ad);
+ rc = smk_bu_file(file, MAY_WRITE, rc);
break;
default:
break;
@@ -1425,6 +1602,7 @@ static int smack_file_send_sigiotask(struct task_struct *tsk,
/* we don't log here as rc can be overriden */
skp = smk_find_entry(file->f_security);
rc = smk_access(skp, tkp->smk_known, MAY_WRITE, NULL);
+ rc = smk_bu_note("sigiotask", skp, tkp->smk_known, MAY_WRITE, rc);
if (rc != 0 && has_capability(tsk, CAP_MAC_OVERRIDE))
rc = 0;
@@ -1442,6 +1620,7 @@ static int smack_file_send_sigiotask(struct task_struct *tsk,
*/
static int smack_file_receive(struct file *file)
{
+ int rc;
int may = 0;
struct smk_audit_info ad;
@@ -1455,7 +1634,9 @@ static int smack_file_receive(struct file *file)
if (file->f_mode & FMODE_WRITE)
may |= MAY_WRITE;
- return smk_curacc(file->f_security, may, &ad);
+ rc = smk_curacc(file->f_security, may, &ad);
+ rc = smk_bu_file(file, may, rc);
+ return rc;
}
/**
@@ -1485,6 +1666,7 @@ static int smack_file_open(struct file *file, const struct cred *cred)
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
rc = smk_access(tsp->smk_task, isp->smk_inode, MAY_READ, &ad);
+ rc = smk_bu_credfile(cred, file, MAY_READ, rc);
if (rc == 0)
file->f_security = isp->smk_inode;
@@ -1641,10 +1823,13 @@ static int smk_curacc_on_task(struct task_struct *p, int access,
{
struct smk_audit_info ad;
struct smack_known *skp = smk_of_task(task_security(p));
+ int rc;
smk_ad_init(&ad, caller, LSM_AUDIT_DATA_TASK);
smk_ad_setfield_u_tsk(&ad, p);
- return smk_curacc(skp->smk_known, access, &ad);
+ rc = smk_curacc(skp->smk_known, access, &ad);
+ rc = smk_bu_task(p, access, rc);
+ return rc;
}
/**
@@ -1798,6 +1983,7 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
struct smk_audit_info ad;
struct smack_known *skp;
struct smack_known *tkp = smk_of_task(task_security(p));
+ int rc;
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
smk_ad_setfield_u_tsk(&ad, p);
@@ -1805,15 +1991,20 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
* Sending a signal requires that the sender
* can write the receiver.
*/
- if (secid == 0)
- return smk_curacc(tkp->smk_known, MAY_WRITE, &ad);
+ if (secid == 0) {
+ rc = smk_curacc(tkp->smk_known, MAY_WRITE, &ad);
+ rc = smk_bu_task(p, MAY_WRITE, rc);
+ return rc;
+ }
/*
* If the secid isn't 0 we're dealing with some USB IO
* specific behavior. This is not clean. For one thing
* we can't take privilege into account.
*/
skp = smack_from_secid(secid);
- return smk_access(skp, tkp->smk_known, MAY_WRITE, &ad);
+ rc = smk_access(skp, tkp->smk_known, MAY_WRITE, &ad);
+ rc = smk_bu_note("USB signal", skp, tkp->smk_known, MAY_WRITE, rc);
+ return rc;
}
/**
@@ -2005,6 +2196,7 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
sk_lbl = SMACK_UNLABELED_SOCKET;
skp = ssp->smk_out;
rc = smk_access(skp, hostsp, MAY_WRITE, &ad);
+ rc = smk_bu_note("IPv4 host check", skp, hostsp, MAY_WRITE, rc);
} else {
sk_lbl = SMACK_CIPSO_SOCKET;
rc = 0;
@@ -2107,6 +2299,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
unsigned short port = 0;
char *object;
struct smk_audit_info ad;
+ int rc;
#ifdef CONFIG_AUDIT
struct lsm_network_audit net;
#endif
@@ -2160,7 +2353,9 @@ auditout:
else
ad.a.u.net->v6info.daddr = address->sin6_addr;
#endif
- return smk_access(skp, object, MAY_WRITE, &ad);
+ rc = smk_access(skp, object, MAY_WRITE, &ad);
+ rc = smk_bu_note("IPv6 port check", skp, object, MAY_WRITE, rc);
+ return rc;
}
/**
@@ -2399,12 +2594,15 @@ static int smk_curacc_shm(struct shmid_kernel *shp, int access)
{
char *ssp = smack_of_shm(shp);
struct smk_audit_info ad;
+ int rc;
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
ad.a.u.ipc_id = shp->shm_perm.id;
#endif
- return smk_curacc(ssp, access, &ad);
+ rc = smk_curacc(ssp, access, &ad);
+ rc = smk_bu_current("shm", ssp, access, rc);
+ return rc;
}
/**
@@ -2523,12 +2721,15 @@ static int smk_curacc_sem(struct sem_array *sma, int access)
{
char *ssp = smack_of_sem(sma);
struct smk_audit_info ad;
+ int rc;
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
ad.a.u.ipc_id = sma->sem_perm.id;
#endif
- return smk_curacc(ssp, access, &ad);
+ rc = smk_curacc(ssp, access, &ad);
+ rc = smk_bu_current("sem", ssp, access, rc);
+ return rc;
}
/**
@@ -2653,12 +2854,15 @@ static int smk_curacc_msq(struct msg_queue *msq, int access)
{
char *msp = smack_of_msq(msq);
struct smk_audit_info ad;
+ int rc;
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
ad.a.u.ipc_id = msq->q_perm.id;
#endif
- return smk_curacc(msp, access, &ad);
+ rc = smk_curacc(msp, access, &ad);
+ rc = smk_bu_current("msq", msp, access, rc);
+ return rc;
}
/**
@@ -2754,12 +2958,15 @@ static int smack_ipc_permission(struct kern_ipc_perm *ipp, short flag)
char *isp = ipp->security;
int may = smack_flags_to_may(flag);
struct smk_audit_info ad;
+ int rc;
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
ad.a.u.ipc_id = ipp->id;
#endif
- return smk_curacc(isp, may, &ad);
+ rc = smk_curacc(isp, may, &ad);
+ rc = smk_bu_current("svipc", isp, may, rc);
+ return rc;
}
/**
@@ -3092,8 +3299,13 @@ static int smack_unix_stream_connect(struct sock *sock,
smk_ad_setfield_u_net_sk(&ad, other);
#endif
rc = smk_access(skp, okp->smk_known, MAY_WRITE, &ad);
- if (rc == 0)
+ rc = smk_bu_note("UDS connect", skp, okp->smk_known,
+ MAY_WRITE, rc);
+ if (rc == 0) {
rc = smk_access(okp, okp->smk_known, MAY_WRITE, NULL);
+ rc = smk_bu_note("UDS connect", okp, okp->smk_known,
+ MAY_WRITE, rc);
+ }
}
/*
@@ -3121,6 +3333,7 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
struct socket_smack *osp = other->sk->sk_security;
struct smack_known *skp;
struct smk_audit_info ad;
+ int rc;
#ifdef CONFIG_AUDIT
struct lsm_network_audit net;
@@ -3133,7 +3346,10 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
return 0;
skp = ssp->smk_out;
- return smk_access(skp, osp->smk_in->smk_known, MAY_WRITE, &ad);
+ rc = smk_access(skp, osp->smk_in->smk_known, MAY_WRITE, &ad);
+ rc = smk_bu_note("UDS send", skp, osp->smk_in->smk_known,
+ MAY_WRITE, rc);
+ return rc;
}
/**
@@ -3348,6 +3564,8 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
* for networking.
*/
rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
+ rc = smk_bu_note("IPv4 delivery", skp, ssp->smk_in->smk_known,
+ MAY_WRITE, rc);
if (rc != 0)
netlbl_skbuff_err(skb, rc, 0);
break;
@@ -3528,6 +3746,8 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
* here. Read access is not required.
*/
rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
+ rc = smk_bu_note("IPv4 connect", skp, ssp->smk_in->smk_known,
+ MAY_WRITE, rc);
if (rc != 0)
return rc;
@@ -3631,6 +3851,7 @@ static int smack_key_permission(key_ref_t key_ref,
struct smk_audit_info ad;
struct smack_known *tkp = smk_of_task(cred->security);
int request = 0;
+ int rc;
keyp = key_ref_to_ptr(key_ref);
if (keyp == NULL)
@@ -3655,7 +3876,9 @@ static int smack_key_permission(key_ref_t key_ref,
request = MAY_READ;
if (perm & (KEY_NEED_WRITE | KEY_NEED_LINK | KEY_NEED_SETATTR))
request = MAY_WRITE;
- return smk_access(tkp, keyp->security, request, &ad);
+ rc = smk_access(tkp, keyp->security, request, &ad);
+ rc = smk_bu_note("key access", tkp, keyp->security, request, rc);
+ return rc;
}
#endif /* CONFIG_KEYS */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 09:15:13 +0000