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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/atm/pvc.c | |
download | lwn-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz lwn-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'net/atm/pvc.c')
-rw-r--r-- | net/atm/pvc.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/net/atm/pvc.c b/net/atm/pvc.c new file mode 100644 index 000000000000..2684a92da22b --- /dev/null +++ b/net/atm/pvc.c @@ -0,0 +1,155 @@ +/* net/atm/pvc.c - ATM PVC sockets */ + +/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */ + + +#include <linux/config.h> +#include <linux/net.h> /* struct socket, struct proto_ops */ +#include <linux/atm.h> /* ATM stuff */ +#include <linux/atmdev.h> /* ATM devices */ +#include <linux/errno.h> /* error codes */ +#include <linux/kernel.h> /* printk */ +#include <linux/init.h> +#include <linux/skbuff.h> +#include <linux/bitops.h> +#include <net/sock.h> /* for sock_no_* */ + +#include "resources.h" /* devs and vccs */ +#include "common.h" /* common for PVCs and SVCs */ + + +static int pvc_shutdown(struct socket *sock,int how) +{ + return 0; +} + + +static int pvc_bind(struct socket *sock,struct sockaddr *sockaddr, + int sockaddr_len) +{ + struct sock *sk = sock->sk; + struct sockaddr_atmpvc *addr; + struct atm_vcc *vcc; + int error; + + if (sockaddr_len != sizeof(struct sockaddr_atmpvc)) return -EINVAL; + addr = (struct sockaddr_atmpvc *) sockaddr; + if (addr->sap_family != AF_ATMPVC) return -EAFNOSUPPORT; + lock_sock(sk); + vcc = ATM_SD(sock); + if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) { + error = -EBADFD; + goto out; + } + if (test_bit(ATM_VF_PARTIAL,&vcc->flags)) { + if (vcc->vpi != ATM_VPI_UNSPEC) addr->sap_addr.vpi = vcc->vpi; + if (vcc->vci != ATM_VCI_UNSPEC) addr->sap_addr.vci = vcc->vci; + } + error = vcc_connect(sock, addr->sap_addr.itf, addr->sap_addr.vpi, + addr->sap_addr.vci); +out: + release_sock(sk); + return error; +} + + +static int pvc_connect(struct socket *sock,struct sockaddr *sockaddr, + int sockaddr_len,int flags) +{ + return pvc_bind(sock,sockaddr,sockaddr_len); +} + +static int pvc_setsockopt(struct socket *sock, int level, int optname, + char __user *optval, int optlen) +{ + struct sock *sk = sock->sk; + int error; + + lock_sock(sk); + error = vcc_setsockopt(sock, level, optname, optval, optlen); + release_sock(sk); + return error; +} + + +static int pvc_getsockopt(struct socket *sock, int level, int optname, + char __user *optval, int __user *optlen) +{ + struct sock *sk = sock->sk; + int error; + + lock_sock(sk); + error = vcc_getsockopt(sock, level, optname, optval, optlen); + release_sock(sk); + return error; +} + + +static int pvc_getname(struct socket *sock,struct sockaddr *sockaddr, + int *sockaddr_len,int peer) +{ + struct sockaddr_atmpvc *addr; + struct atm_vcc *vcc = ATM_SD(sock); + + if (!vcc->dev || !test_bit(ATM_VF_ADDR,&vcc->flags)) return -ENOTCONN; + *sockaddr_len = sizeof(struct sockaddr_atmpvc); + addr = (struct sockaddr_atmpvc *) sockaddr; + addr->sap_family = AF_ATMPVC; + addr->sap_addr.itf = vcc->dev->number; + addr->sap_addr.vpi = vcc->vpi; + addr->sap_addr.vci = vcc->vci; + return 0; +} + + +static struct proto_ops pvc_proto_ops = { + .family = PF_ATMPVC, + .owner = THIS_MODULE, + + .release = vcc_release, + .bind = pvc_bind, + .connect = pvc_connect, + .socketpair = sock_no_socketpair, + .accept = sock_no_accept, + .getname = pvc_getname, + .poll = vcc_poll, + .ioctl = vcc_ioctl, + .listen = sock_no_listen, + .shutdown = pvc_shutdown, + .setsockopt = pvc_setsockopt, + .getsockopt = pvc_getsockopt, + .sendmsg = vcc_sendmsg, + .recvmsg = vcc_recvmsg, + .mmap = sock_no_mmap, + .sendpage = sock_no_sendpage, +}; + + +static int pvc_create(struct socket *sock,int protocol) +{ + sock->ops = &pvc_proto_ops; + return vcc_create(sock, protocol, PF_ATMPVC); +} + + +static struct net_proto_family pvc_family_ops = { + .family = PF_ATMPVC, + .create = pvc_create, + .owner = THIS_MODULE, +}; + + +/* + * Initialize the ATM PVC protocol family + */ + + +int __init atmpvc_init(void) +{ + return sock_register(&pvc_family_ops); +} + +void atmpvc_exit(void) +{ + sock_unregister(PF_ATMPVC); +} |