Messages in this thread Patch in this message | | | From | David Howells <> | Subject | [PATCH 55/59] CRED: Wrap task credential accesses in the UNIX socket protocol | Date | Wed, 27 Aug 2008 14:50:26 +0100 |
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Wrap access to task credentials so that they can be separated more easily from the task_struct during the introduction of COW creds.
Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().
Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more sense to use RCU directly rather than a convenient wrapper; these will be addressed by later patches.
Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: netdev@vger.kernel.org ---
net/unix/af_unix.c | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 3c3e6e2..d6e2019 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -467,8 +467,7 @@ static int unix_listen(struct socket *sock, int backlog) sk->sk_state = TCP_LISTEN; /* set credentials so connect can copy them */ sk->sk_peercred.pid = task_tgid_vnr(current); - sk->sk_peercred.uid = current->euid; - sk->sk_peercred.gid = current->egid; + current_euid_egid(&sk->sk_peercred.uid, &sk->sk_peercred.gid); err = 0; out_unlock: @@ -1126,8 +1125,7 @@ restart: newsk->sk_state = TCP_ESTABLISHED; newsk->sk_type = sk->sk_type; newsk->sk_peercred.pid = task_tgid_vnr(current); - newsk->sk_peercred.uid = current->euid; - newsk->sk_peercred.gid = current->egid; + current_euid_egid(&newsk->sk_peercred.uid, &newsk->sk_peercred.gid); newu = unix_sk(newsk); newsk->sk_sleep = &newu->peer_wait; otheru = unix_sk(other); @@ -1187,8 +1185,9 @@ static int unix_socketpair(struct socket *socka, struct socket *sockb) unix_peer(ska)=skb; unix_peer(skb)=ska; ska->sk_peercred.pid = skb->sk_peercred.pid = task_tgid_vnr(current); - ska->sk_peercred.uid = skb->sk_peercred.uid = current->euid; - ska->sk_peercred.gid = skb->sk_peercred.gid = current->egid; + current_euid_egid(&skb->sk_peercred.uid, &skb->sk_peercred.gid); + ska->sk_peercred.uid = skb->sk_peercred.uid; + ska->sk_peercred.gid = skb->sk_peercred.gid; if (ska->sk_type != SOCK_DGRAM) { ska->sk_state = TCP_ESTABLISHED;
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