From acaf7df610ff3faf1778ce40d601fc3dd4a41b40 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Date: Tue, 8 Mar 2011 22:44:11 +0000 Subject: Phonet: provide pipe socket option to retrieve the pipe identifier MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit User-space sometimes needs this information. In particular, the GPRS context or the AT commands pipe setups may use the pipe handle as a reference. This removes the settable pipe handle with CONFIG_PHONET_PIPECTRLR. It did not handle error cases correctly. Furthermore, the kernel *could* implement a smart scheme for allocating handles (if ever needed), but userspace really cannot. Signed-off-by: Rémi Denis-Courmont Signed-off-by: David S. Miller --- net/phonet/pep.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) (limited to 'net/phonet') diff --git a/net/phonet/pep.c b/net/phonet/pep.c index c0fab4c..abfb795 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -853,6 +853,7 @@ static int pep_sock_connect(struct sock *sk, struct sockaddr *addr, int len) pn->pn_sk.dobject = pn_sockaddr_get_object(spn); pn->pn_sk.resource = pn_sockaddr_get_resource(spn); + pn->pipe_handle = 1; /* anything but INVALID_HANDLE */ return pipe_handler_request(sk, PNS_PEP_CONNECT_REQ, PN_PIPE_DISABLE, data, 4); } @@ -909,14 +910,6 @@ static int pep_setsockopt(struct sock *sk, int level, int optname, lock_sock(sk); switch (optname) { -#ifdef CONFIG_PHONET_PIPECTRLR - case PNPIPE_PIPE_HANDLE: - if (val) { - pn->pipe_handle = val; - break; - } -#endif - case PNPIPE_ENCAP: if (val && val != PNPIPE_ENCAP_IP) { err = -EINVAL; @@ -982,6 +975,12 @@ static int pep_getsockopt(struct sock *sk, int level, int optname, val = pn->ifindex; break; + case PNPIPE_HANDLE: + val = pn->pipe_handle; + if (val == PN_PIPE_INVALID_HANDLE) + return -EINVAL; + break; + #ifdef CONFIG_PHONET_PIPECTRLR case PNPIPE_ENABLE: val = sk->sk_state == TCP_ESTABLISHED; -- cgit v1.1