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-rw-r--r--net/netlink/af_netlink.c21
-rw-r--r--net/netlink/genetlink.c68
2 files changed, 44 insertions, 45 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index d56e0d21f91..276131fe56d 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -699,7 +699,7 @@ static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid)
struct sock *netlink_getsockbyfilp(struct file *filp)
{
- struct inode *inode = filp->f_dentry->d_inode;
+ struct inode *inode = filp->f_path.dentry->d_inode;
struct sock *sock;
if (!S_ISSOCK(inode->i_mode))
@@ -1075,8 +1075,9 @@ static int netlink_getsockopt(struct socket *sock, int level, int optname,
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_RECV_PKTINFO ? 1 : 0;
- put_user(len, optlen);
- put_user(val, optval);
+ if (put_user(len, optlen) ||
+ put_user(val, optval))
+ return -EFAULT;
err = 0;
break;
default:
@@ -1147,12 +1148,11 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (len > sk->sk_sndbuf - 32)
goto out;
err = -ENOBUFS;
- skb = nlmsg_new(len, GFP_KERNEL);
+ skb = alloc_skb(len, GFP_KERNEL);
if (skb==NULL)
goto out;
NETLINK_CB(skb).pid = nlk->pid;
- NETLINK_CB(skb).dst_pid = dst_pid;
NETLINK_CB(skb).dst_group = dst_group;
NETLINK_CB(skb).loginuid = audit_get_loginuid(current->audit_context);
selinux_get_task_sid(current, &(NETLINK_CB(skb).sid));
@@ -1434,14 +1434,13 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)
struct sk_buff *skb;
struct nlmsghdr *rep;
struct nlmsgerr *errmsg;
- int size;
+ size_t payload = sizeof(*errmsg);
- if (err == 0)
- size = nlmsg_total_size(sizeof(*errmsg));
- else
- size = nlmsg_total_size(sizeof(*errmsg) + nlmsg_len(nlh));
+ /* error messages get the original request appened */
+ if (err)
+ payload += nlmsg_len(nlh);
- skb = nlmsg_new(size, GFP_KERNEL);
+ skb = nlmsg_new(payload, GFP_KERNEL);
if (!skb) {
struct sock *sk;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 49bc2db7982..548e4e6e698 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -143,6 +143,13 @@ int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
goto errout;
}
+ if (ops->dumpit)
+ ops->flags |= GENL_CMD_CAP_DUMP;
+ if (ops->doit)
+ ops->flags |= GENL_CMD_CAP_DO;
+ if (ops->policy)
+ ops->flags |= GENL_CMD_CAP_HASPOL;
+
genl_lock();
list_add_tail(&ops->ops_list, &family->ops_list);
genl_unlock();
@@ -331,7 +338,7 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
}
*errp = err = netlink_dump_start(genl_sock, skb, nlh,
- ops->dumpit, NULL);
+ ops->dumpit, ops->done);
if (err == 0)
skb_pull(skb, min(NLMSG_ALIGN(nlh->nlmsg_len),
skb->len));
@@ -384,16 +391,19 @@ static void genl_rcv(struct sock *sk, int len)
* Controller
**************************************************************************/
+static struct genl_family genl_ctrl = {
+ .id = GENL_ID_CTRL,
+ .name = "nlctrl",
+ .version = 0x2,
+ .maxattr = CTRL_ATTR_MAX,
+};
+
static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
u32 flags, struct sk_buff *skb, u8 cmd)
{
- struct nlattr *nla_ops;
- struct genl_ops *ops;
void *hdr;
- int idx = 1;
- hdr = genlmsg_put(skb, pid, seq, GENL_ID_CTRL, 0, flags, cmd,
- family->version);
+ hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd);
if (hdr == NULL)
return -1;
@@ -403,34 +413,31 @@ static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
NLA_PUT_U32(skb, CTRL_ATTR_HDRSIZE, family->hdrsize);
NLA_PUT_U32(skb, CTRL_ATTR_MAXATTR, family->maxattr);
- nla_ops = nla_nest_start(skb, CTRL_ATTR_OPS);
- if (nla_ops == NULL)
- goto nla_put_failure;
-
- list_for_each_entry(ops, &family->ops_list, ops_list) {
- struct nlattr *nest;
+ if (!list_empty(&family->ops_list)) {
+ struct nlattr *nla_ops;
+ struct genl_ops *ops;
+ int idx = 1;
- nest = nla_nest_start(skb, idx++);
- if (nest == NULL)
+ nla_ops = nla_nest_start(skb, CTRL_ATTR_OPS);
+ if (nla_ops == NULL)
goto nla_put_failure;
- NLA_PUT_U32(skb, CTRL_ATTR_OP_ID, ops->cmd);
- NLA_PUT_U32(skb, CTRL_ATTR_OP_FLAGS, ops->flags);
+ list_for_each_entry(ops, &family->ops_list, ops_list) {
+ struct nlattr *nest;
- if (ops->policy)
- NLA_PUT_FLAG(skb, CTRL_ATTR_OP_POLICY);
+ nest = nla_nest_start(skb, idx++);
+ if (nest == NULL)
+ goto nla_put_failure;
- if (ops->doit)
- NLA_PUT_FLAG(skb, CTRL_ATTR_OP_DOIT);
+ NLA_PUT_U32(skb, CTRL_ATTR_OP_ID, ops->cmd);
+ NLA_PUT_U32(skb, CTRL_ATTR_OP_FLAGS, ops->flags);
- if (ops->dumpit)
- NLA_PUT_FLAG(skb, CTRL_ATTR_OP_DUMPIT);
+ nla_nest_end(skb, nest);
+ }
- nla_nest_end(skb, nest);
+ nla_nest_end(skb, nla_ops);
}
- nla_nest_end(skb, nla_ops);
-
return genlmsg_end(skb, hdr);
nla_put_failure:
@@ -480,7 +487,7 @@ static struct sk_buff *ctrl_build_msg(struct genl_family *family, u32 pid,
struct sk_buff *skb;
int err;
- skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (skb == NULL)
return ERR_PTR(-ENOBUFS);
@@ -529,7 +536,7 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
goto errout;
}
- err = genlmsg_unicast(msg, info->snd_pid);
+ err = genlmsg_reply(msg, info);
errout:
return err;
}
@@ -562,13 +569,6 @@ static struct genl_ops genl_ctrl_ops = {
.policy = ctrl_policy,
};
-static struct genl_family genl_ctrl = {
- .id = GENL_ID_CTRL,
- .name = "nlctrl",
- .version = 0x1,
- .maxattr = CTRL_ATTR_MAX,
-};
-
static int __init genl_init(void)
{
int i, err;