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[NETLINK]: Encapsulate eff_cap usage within security framework.
This patch encapsulates the usage of eff_cap (in netlink_skb_params) within the security framework by extending security_netlink_recv to include a required capability parameter and converting all direct usage of eff_caps outside of the lsm modules to use the interface. It also updates the SELinux implementation of the security_netlink_send and security_netlink_recv hooks to take advantage of the sid in the netlink_skb_params struct. This also enables SELinux to perform auditing of netlink capability checks. Please apply, for 2.6.18 if possible. Signed-off-by: Darrel Goeddel <dgoeddel@trustedcs.com> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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12 changed files with 35 additions and 34 deletions
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@ -229,7 +229,7 @@ static int nfnetlink_rcv_msg(struct sk_buff *skb,
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NFNL_SUBSYS_ID(nlh->nlmsg_type),
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NFNL_MSG_TYPE(nlh->nlmsg_type));
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if (!cap_raised(NETLINK_CB(skb).eff_cap, CAP_NET_ADMIN)) {
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if (security_netlink_recv(skb, CAP_NET_ADMIN)) {
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DEBUGP("missing CAP_NET_ADMIN\n");
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*errp = -EPERM;
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return -1;
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