diff options
Diffstat (limited to 'sys/compat/linux/linux_socket.c')
| -rw-r--r-- | sys/compat/linux/linux_socket.c | 704 |
1 files changed, 704 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c new file mode 100644 index 00000000000..664a246f99e --- /dev/null +++ b/sys/compat/linux/linux_socket.c @@ -0,0 +1,704 @@ +/* $NetBSD: linux_socket.c,v 1.12 1995/10/07 06:27:13 mycroft Exp $ */ + +/* + * Copyright (c) 1995 Frank van der Linden + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed for the NetBSD Project + * by Frank van der Linden + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/systm.h> +#include <sys/buf.h> +#include <sys/malloc.h> +#include <sys/ioctl.h> +#include <sys/tty.h> +#include <sys/file.h> +#include <sys/filedesc.h> +#include <sys/select.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <net/if.h> +#include <netinet/in.h> +#include <netinet/tcp.h> +#include <sys/mount.h> +#include <sys/proc.h> +#include <sys/vnode.h> +#include <sys/device.h> + +#include <sys/syscallargs.h> + +#include <compat/linux/linux_types.h> +#include <compat/linux/linux_util.h> +#include <compat/linux/linux_signal.h> +#include <compat/linux/linux_syscallargs.h> +#include <compat/linux/linux_ioctl.h> +#include <compat/linux/linux_socket.h> +#include <compat/linux/linux_socketcall.h> +#include <compat/linux/linux_sockio.h> + +/* + * All the calls in this file are entered via one common system + * call in Linux, represented here by linux_socketcall() + * Arguments for the various calls are on the user stack. A pointer + * to them is the only thing that is passed. It is up to the various + * calls to copy them in themselves. To make it look better, they + * are copied to structures. + */ + +/* + * Convert between Linux and BSD socket domain values + */ +int +linux_to_bsd_domain(ldom) + int ldom; +{ + + switch (ldom) { + case LINUX_AF_UNSPEC: + return AF_UNSPEC; + case LINUX_AF_UNIX: + return AF_LOCAL; + case LINUX_AF_INET: + return AF_INET; + case LINUX_AF_AX25: + return AF_CCITT; + case LINUX_AF_IPX: + return AF_IPX; + case LINUX_AF_APPLETALK: + return AF_APPLETALK; + default: + return -1; + } +} + +int +linux_socket(p, uap, retval) + struct proc *p; + struct linux_socket_args /* { + syscallarg(int) domain; + syscallarg(int) type; + syscallarg(int) protocol; + } */ *uap; + register_t *retval; +{ + struct linux_socket_args lsa; + struct sys_socket_args bsa; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lsa, sizeof lsa))) + return error; + + SCARG(&bsa, protocol) = lsa.protocol; + SCARG(&bsa, type) = lsa.type; + SCARG(&bsa, domain) = linux_to_bsd_domain(lsa.domain); + if (SCARG(&bsa, domain) == -1) + return EINVAL; + return sys_socket(p, &bsa, retval); +} + +int +linux_bind(p, uap, retval) + struct proc *p; + struct linux_bind_args /* { + syscallarg(int) s; + syscallarg(struct sockaddr *) name; + syscallarg(int) namelen; + } */ *uap; + register_t *retval; +{ + struct linux_bind_args lba; + struct sys_bind_args bba; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lba, sizeof lba))) + return error; + + SCARG(&bba, s) = lba.s; + SCARG(&bba, name) = (caddr_t) lba.name; + SCARG(&bba, namelen) = lba.namelen; + + return sys_bind(p, &bba, retval); +} + +int +linux_connect(p, uap, retval) + struct proc *p; + struct linux_connect_args /* { + syscallarg(int) s; + syscallarg(struct sockaddr *) name; + syscallarg(int) namelen; + } */ *uap; + register_t *retval; +{ + struct linux_connect_args lca; + struct sys_connect_args bca; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lca, sizeof lca))) + return error; + + SCARG(&bca, s) = lca.s; + SCARG(&bca, name) = (caddr_t) lca.name; + SCARG(&bca, namelen) = lca.namelen; + + return sys_connect(p, &bca, retval); +} + +int +linux_listen(p, uap, retval) + struct proc *p; + struct linux_listen_args /* { + syscallarg(int) s; + syscallarg(int) backlog; + } */ *uap; + register_t *retval; +{ + struct linux_listen_args lla; + struct sys_listen_args bla; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lla, sizeof lla))) + return error; + + SCARG(&bla, s) = lla.s; + SCARG(&bla, backlog) = lla.backlog; + + return sys_listen(p, &bla, retval); +} + +int +linux_accept(p, uap, retval) + struct proc *p; + struct linux_accept_args /* { + syscallarg(int) s; + syscallarg(struct sockaddr *) addr; + syscallarg(int *) namelen; + } */ *uap; + register_t *retval; +{ + struct linux_accept_args laa; + struct compat_43_sys_accept_args baa; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &laa, sizeof laa))) + return error; + + SCARG(&baa, s) = laa.s; + SCARG(&baa, name) = (caddr_t) laa.addr; + SCARG(&baa, anamelen) = laa.namelen; + + return compat_43_sys_accept(p, &baa, retval); +} + +int +linux_getsockname(p, uap, retval) + struct proc *p; + struct linux_getsockname_args /* { + syscallarg(int) s; + syscallarg(struct sockaddr *) addr; + syscallarg(int *) namelen; + } */ *uap; + register_t *retval; +{ + struct linux_getsockname_args lga; + struct compat_43_sys_getsockname_args bga; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lga, sizeof lga))) + return error; + + SCARG(&bga, fdec) = lga.s; + SCARG(&bga, asa) = (caddr_t) lga.addr; + SCARG(&bga, alen) = lga.namelen; + + return compat_43_sys_getsockname(p, &bga, retval); +} + +int +linux_getpeername(p, uap, retval) + struct proc *p; + struct linux_getpeername_args /* { + syscallarg(int) s; + syscallarg(struct sockaddr *) addr; + syscallarg(int *) namelen; + } */ *uap; + register_t *retval; +{ + struct linux_getpeername_args lga; + struct compat_43_sys_getpeername_args bga; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lga, sizeof lga))) + return error; + + SCARG(&bga, fdes) = lga.s; + SCARG(&bga, asa) = (caddr_t) lga.addr; + SCARG(&bga, alen) = lga.namelen; + + return compat_43_sys_getpeername(p, &bga, retval); +} + +int +linux_socketpair(p, uap, retval) + struct proc *p; + struct linux_socketpair_args /* { + syscallarg(int) domain; + syscallarg(int) type; + syscallarg(int) protocol; + syscallarg(int *) rsv; + } */ *uap; + register_t *retval; +{ + struct linux_socketpair_args lsa; + struct sys_socketpair_args bsa; + int error; + + if ((error = copyin((caddr_t) uap, &lsa, sizeof lsa))) + return error; + + SCARG(&bsa, domain) = linux_to_bsd_domain(lsa.domain); + if (SCARG(&bsa, domain) == -1) + return EINVAL; + SCARG(&bsa, type) = lsa.type; + SCARG(&bsa, protocol) = lsa.protocol; + SCARG(&bsa, rsv) = lsa.rsv; + + return sys_socketpair(p, &bsa, retval); +} + +int +linux_send(p, uap, retval) + struct proc *p; + struct linux_send_args /* { + syscallarg(int) s; + syscallarg(void *) msg; + syscallarg(int) len; + syscallarg(int) flags; + } */ *uap; + register_t *retval; +{ + struct linux_send_args lsa; + struct compat_43_sys_send_args bsa; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lsa, sizeof lsa))) + return error; + + SCARG(&bsa, s) = lsa.s; + SCARG(&bsa, buf) = lsa.msg; + SCARG(&bsa, len) = lsa.len; + SCARG(&bsa, flags) = lsa.flags; + + return compat_43_sys_send(p, &bsa, retval); +} + +int +linux_recv(p, uap, retval) + struct proc *p; + struct linux_recv_args /* { + syscallarg(int) s; + syscallarg(void *) msg; + syscallarg(int) len; + syscallarg(int) flags; + } */ *uap; + register_t *retval; +{ + struct linux_recv_args lra; + struct compat_43_sys_recv_args bra; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lra, sizeof lra))) + return error; + + SCARG(&bra, s) = lra.s; + SCARG(&bra, buf) = lra.msg; + SCARG(&bra, len) = lra.len; + SCARG(&bra, flags) = lra.flags; + + return compat_43_sys_recv(p, &bra, retval); +} + +int +linux_sendto(p, uap, retval) + struct proc *p; + struct linux_sendto_args /* { + syscallarg(int) s; + syscallarg(void *) msg; + syscallarg(int) len; + syscallarg(int) flags; + syscallarg(sockaddr *) to; + syscallarg(int) tolen; + } */ *uap; + register_t *retval; +{ + struct linux_sendto_args lsa; + struct sys_sendto_args bsa; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lsa, sizeof lsa))) + return error; + + SCARG(&bsa, s) = lsa.s; + SCARG(&bsa, buf) = lsa.msg; + SCARG(&bsa, len) = lsa.len; + SCARG(&bsa, flags) = lsa.flags; + SCARG(&bsa, to) = (caddr_t) lsa.to; + SCARG(&bsa, tolen) = lsa.tolen; + + return sys_sendto(p, &bsa, retval); +} + +int +linux_recvfrom(p, uap, retval) + struct proc *p; + struct linux_recvfrom_args /* { + syscallarg(int) s; + syscallarg(void *) buf; + syscallarg(int) len; + syscallarg(int) flags; + syscallarg(struct sockaddr *) from; + syscallarg(int *) fromlen; + } */ *uap; + register_t *retval; +{ + struct linux_recvfrom_args lra; + struct compat_43_sys_recvfrom_args bra; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lra, sizeof lra))) + return error; + + SCARG(&bra, s) = lra.s; + SCARG(&bra, buf) = lra.buf; + SCARG(&bra, len) = lra.len; + SCARG(&bra, flags) = lra.flags; + SCARG(&bra, from) = (caddr_t) lra.from; + SCARG(&bra, fromlenaddr) = lra.fromlen; + + return compat_43_sys_recvfrom(p, &bra, retval); +} + +int +linux_shutdown(p, uap, retval) + struct proc *p; + struct linux_shutdown_args /* { + syscallarg(int) s; + syscallarg(int) how; + } */ *uap; + register_t *retval; +{ + struct linux_shutdown_args lsa; + struct sys_shutdown_args bsa; + int error; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lsa, sizeof lsa))) + return error; + + SCARG(&bsa, s) = lsa.s; + SCARG(&bsa, how) = lsa.how; + + return sys_shutdown(p, &bsa, retval); +} + +/* + * Convert socket option level from Linux to NetBSD value. Only SOL_SOCKET + * is different, the rest matches IPPROTO_* on both systems. + */ +int +linux_to_bsd_sopt_level(llevel) + int llevel; +{ + + switch (llevel) { + case LINUX_SOL_SOCKET: + return SOL_SOCKET; + case LINUX_SOL_IP: + return IPPROTO_IP; + case LINUX_SOL_TCP: + return IPPROTO_TCP; + case LINUX_SOL_UDP: + return IPPROTO_UDP; + default: + return -1; + } +} + +/* + * Convert Linux socket level socket option numbers to NetBSD values. + */ +int +linux_to_bsd_so_sockopt(lopt) + int lopt; +{ + + switch (lopt) { + case LINUX_SO_DEBUG: + return SO_DEBUG; + case LINUX_SO_REUSEADDR: + return SO_REUSEADDR; + case LINUX_SO_TYPE: + return SO_TYPE; + case LINUX_SO_ERROR: + return SO_ERROR; + case LINUX_SO_DONTROUTE: + return SO_DONTROUTE; + case LINUX_SO_BROADCAST: + return SO_BROADCAST; + case LINUX_SO_SNDBUF: + return SO_SNDBUF; + case LINUX_SO_RCVBUF: + return SO_RCVBUF; + case LINUX_SO_KEEPALIVE: + return SO_KEEPALIVE; + case LINUX_SO_OOBINLINE: + return SO_OOBINLINE; + case LINUX_SO_LINGER: + return SO_LINGER; + case LINUX_SO_PRIORITY: + case LINUX_SO_NO_CHECK: + default: + return -1; + } +} + +/* + * Convert Linux IP level socket option number to NetBSD values. + */ +int +linux_to_bsd_ip_sockopt(lopt) + int lopt; +{ + + switch (lopt) { + case LINUX_IP_TOS: + return IP_TOS; + case LINUX_IP_TTL: + return IP_TTL; + case LINUX_IP_MULTICAST_TTL: + return IP_MULTICAST_TTL; + case LINUX_IP_MULTICAST_LOOP: + return IP_MULTICAST_LOOP; + case LINUX_IP_MULTICAST_IF: + return IP_MULTICAST_IF; + case LINUX_IP_ADD_MEMBERSHIP: + return IP_ADD_MEMBERSHIP; + case LINUX_IP_DROP_MEMBERSHIP: + return IP_DROP_MEMBERSHIP; + default: + return -1; + } +} + +/* + * Convert Linux TCP level socket option number to NetBSD values. + */ +int +linux_to_bsd_tcp_sockopt(lopt) + int lopt; +{ + + switch (lopt) { + case LINUX_TCP_NODELAY: + return TCP_NODELAY; + case LINUX_TCP_MAXSEG: + return TCP_MAXSEG; + default: + return -1; + } +} + +/* + * Convert Linux UDP level socket option number to NetBSD values. + */ +int +linux_to_bsd_udp_sockopt(lopt) + int lopt; +{ + + switch (lopt) { + default: + return -1; + } +} + +/* + * Another reasonably straightforward function: setsockopt(2). + * The level and option numbers are converted; the values passed + * are not (yet) converted, the ones currently implemented don't + * need conversion, as they are the same on both systems. + */ +int +linux_setsockopt(p, uap, retval) + struct proc *p; + struct linux_setsockopt_args /* { + syscallarg(int) s; + syscallarg(int) level; + syscallarg(int) optname; + syscallarg(void *) optval; + syscallarg(int) optlen; + } */ *uap; + register_t *retval; +{ + struct linux_setsockopt_args lsa; + struct sys_setsockopt_args bsa; + int error, name; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lsa, sizeof lsa))) + return error; + + SCARG(&bsa, s) = lsa.s; + SCARG(&bsa, level) = linux_to_bsd_sopt_level(lsa.level); + SCARG(&bsa, val) = lsa.optval; + SCARG(&bsa, valsize) = lsa.optlen; + + switch (SCARG(&bsa, level)) { + case SOL_SOCKET: + name = linux_to_bsd_so_sockopt(lsa.optname); + break; + case IPPROTO_IP: + name = linux_to_bsd_ip_sockopt(lsa.optname); + break; + case IPPROTO_TCP: + name = linux_to_bsd_tcp_sockopt(lsa.optname); + break; + case IPPROTO_UDP: + name = linux_to_bsd_udp_sockopt(lsa.optname); + break; + default: + return EINVAL; + } + + if (name == -1) + return EINVAL; + SCARG(&bsa, name) = name; + + return sys_setsockopt(p, &bsa, retval); +} + +/* + * getsockopt(2) is very much the same as setsockopt(2) (see above) + */ +int +linux_getsockopt(p, uap, retval) + struct proc *p; + struct linux_getsockopt_args /* { + syscallarg(int) s; + syscallarg(int) level; + syscallarg(int) optname; + syscallarg(void *) optval; + syscallarg(int) *optlen; + } */ *uap; + register_t *retval; +{ + struct linux_getsockopt_args lga; + struct sys_getsockopt_args bga; + int error, name; + + if ((error = copyin((caddr_t) uap, (caddr_t) &lga, sizeof lga))) + return error; + + SCARG(&bga, s) = lga.s; + SCARG(&bga, level) = linux_to_bsd_sopt_level(lga.level); + SCARG(&bga, val) = lga.optval; + SCARG(&bga, avalsize) = lga.optlen; + + switch (SCARG(&bga, level)) { + case SOL_SOCKET: + name = linux_to_bsd_so_sockopt(lga.optname); + break; + case IPPROTO_IP: + name = linux_to_bsd_ip_sockopt(lga.optname); + break; + case IPPROTO_TCP: + name = linux_to_bsd_tcp_sockopt(lga.optname); + break; + case IPPROTO_UDP: + name = linux_to_bsd_udp_sockopt(lga.optname); + break; + default: + return EINVAL; + } + + if (name == -1) + return EINVAL; + SCARG(&bga, name) = name; + + return sys_getsockopt(p, &bga, retval); +} + +/* + * Entry point to all Linux socket calls. Just check which call to + * make and take appropriate action. + */ +int +linux_sys_socketcall(p, v, retval) + struct proc *p; + void *v; + register_t *retval; +{ + struct linux_sys_socketcall_args /* { + syscallarg(int) what; + syscallarg(void *) args; + } */ *uap = v; + + switch (SCARG(uap, what)) { + case LINUX_SYS_socket: + return linux_socket(p, SCARG(uap, args), retval); + case LINUX_SYS_bind: + return linux_bind(p, SCARG(uap, args), retval); + case LINUX_SYS_connect: + return linux_connect(p, SCARG(uap, args), retval); + case LINUX_SYS_listen: + return linux_listen(p, SCARG(uap, args), retval); + case LINUX_SYS_accept: + return linux_accept(p, SCARG(uap, args), retval); + case LINUX_SYS_getsockname: + return linux_getsockname(p, SCARG(uap, args), retval); + case LINUX_SYS_getpeername: + return linux_getpeername(p, SCARG(uap, args), retval); + case LINUX_SYS_socketpair: + return linux_socketpair(p, SCARG(uap, args), retval); + case LINUX_SYS_send: + return linux_send(p, SCARG(uap, args), retval); + case LINUX_SYS_recv: + return linux_recv(p, SCARG(uap, args), retval); + case LINUX_SYS_sendto: + return linux_sendto(p, SCARG(uap, args), retval); + case LINUX_SYS_recvfrom: + return linux_recvfrom(p, SCARG(uap, args), retval); + case LINUX_SYS_shutdown: + return linux_shutdown(p, SCARG(uap, args), retval); + case LINUX_SYS_setsockopt: + return linux_setsockopt(p, SCARG(uap, args), retval); + case LINUX_SYS_getsockopt: + return linux_getsockopt(p, SCARG(uap, args), retval); + default: + return ENOSYS; + } +} |