diff options
Diffstat (limited to 'arch/sparc64/solaris/socket.c')
| -rw-r--r-- | arch/sparc64/solaris/socket.c | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/arch/sparc64/solaris/socket.c b/arch/sparc64/solaris/socket.c new file mode 100644 index 000000000000..ec8e074c4eac --- /dev/null +++ b/arch/sparc64/solaris/socket.c @@ -0,0 +1,415 @@ +/* $Id: socket.c,v 1.6 2002/02/08 03:57:14 davem Exp $ + * socket.c: Socket syscall emulation for Solaris 2.6+ + * + * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) + * + * 1999-08-19 Fixed socketpair code + * Jason Rappleye (rappleye@ccr.buffalo.edu) + */ + +#include <linux/types.h> +#include <linux/smp_lock.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/socket.h> +#include <linux/file.h> +#include <linux/net.h> +#include <linux/compat.h> +#include <net/compat.h> + +#include <asm/uaccess.h> +#include <asm/string.h> +#include <asm/oplib.h> +#include <asm/idprom.h> + +#include "conv.h" + +#define SOCK_SOL_STREAM 2 +#define SOCK_SOL_DGRAM 1 +#define SOCK_SOL_RAW 4 +#define SOCK_SOL_RDM 5 +#define SOCK_SOL_SEQPACKET 6 + +#define SOL_SO_SNDLOWAT 0x1003 +#define SOL_SO_RCVLOWAT 0x1004 +#define SOL_SO_SNDTIMEO 0x1005 +#define SOL_SO_RCVTIMEO 0x1006 +#define SOL_SO_STATE 0x2000 + +#define SOL_SS_NDELAY 0x040 +#define SOL_SS_NONBLOCK 0x080 +#define SOL_SS_ASYNC 0x100 + +#define SO_STATE 0x000e + +static int socket_check(int family, int type) +{ + if (family != PF_UNIX && family != PF_INET) + return -ESOCKTNOSUPPORT; + switch (type) { + case SOCK_SOL_STREAM: type = SOCK_STREAM; break; + case SOCK_SOL_DGRAM: type = SOCK_DGRAM; break; + case SOCK_SOL_RAW: type = SOCK_RAW; break; + case SOCK_SOL_RDM: type = SOCK_RDM; break; + case SOCK_SOL_SEQPACKET: type = SOCK_SEQPACKET; break; + default: return -EINVAL; + } + return type; +} + +static int solaris_to_linux_sockopt(int optname) +{ + switch (optname) { + case SOL_SO_SNDLOWAT: optname = SO_SNDLOWAT; break; + case SOL_SO_RCVLOWAT: optname = SO_RCVLOWAT; break; + case SOL_SO_SNDTIMEO: optname = SO_SNDTIMEO; break; + case SOL_SO_RCVTIMEO: optname = SO_RCVTIMEO; break; + case SOL_SO_STATE: optname = SO_STATE; break; + }; + + return optname; +} + +asmlinkage int solaris_socket(int family, int type, int protocol) +{ + int (*sys_socket)(int, int, int) = + (int (*)(int, int, int))SYS(socket); + + type = socket_check (family, type); + if (type < 0) return type; + return sys_socket(family, type, protocol); +} + +asmlinkage int solaris_socketpair(int *usockvec) +{ + int (*sys_socketpair)(int, int, int, int *) = + (int (*)(int, int, int, int *))SYS(socketpair); + + /* solaris socketpair really only takes one arg at the syscall + * level, int * usockvec. The libs apparently take care of + * making sure that family==AF_UNIX and type==SOCK_STREAM. The + * pointer we really want ends up residing in the first (and + * supposedly only) argument. + */ + + return sys_socketpair(AF_UNIX, SOCK_STREAM, 0, (int *)usockvec); +} + +asmlinkage int solaris_bind(int fd, struct sockaddr *addr, int addrlen) +{ + int (*sys_bind)(int, struct sockaddr *, int) = + (int (*)(int, struct sockaddr *, int))SUNOS(104); + + return sys_bind(fd, addr, addrlen); +} + +asmlinkage int solaris_setsockopt(int fd, int level, int optname, u32 optval, int optlen) +{ + int (*sunos_setsockopt)(int, int, int, u32, int) = + (int (*)(int, int, int, u32, int))SUNOS(105); + + optname = solaris_to_linux_sockopt(optname); + if (optname < 0) + return optname; + if (optname == SO_STATE) + return 0; + + return sunos_setsockopt(fd, level, optname, optval, optlen); +} + +asmlinkage int solaris_getsockopt(int fd, int level, int optname, u32 optval, u32 optlen) +{ + int (*sunos_getsockopt)(int, int, int, u32, u32) = + (int (*)(int, int, int, u32, u32))SUNOS(118); + + optname = solaris_to_linux_sockopt(optname); + if (optname < 0) + return optname; + + if (optname == SO_STATE) + optname = SOL_SO_STATE; + + return sunos_getsockopt(fd, level, optname, optval, optlen); +} + +asmlinkage int solaris_connect(int fd, struct sockaddr __user *addr, int addrlen) +{ + int (*sys_connect)(int, struct sockaddr __user *, int) = + (int (*)(int, struct sockaddr __user *, int))SYS(connect); + + return sys_connect(fd, addr, addrlen); +} + +asmlinkage int solaris_accept(int fd, struct sockaddr __user *addr, int __user *addrlen) +{ + int (*sys_accept)(int, struct sockaddr __user *, int __user *) = + (int (*)(int, struct sockaddr __user *, int __user *))SYS(accept); + + return sys_accept(fd, addr, addrlen); +} + +asmlinkage int solaris_listen(int fd, int backlog) +{ + int (*sys_listen)(int, int) = + (int (*)(int, int))SUNOS(106); + + return sys_listen(fd, backlog); +} + +asmlinkage int solaris_shutdown(int fd, int how) +{ + int (*sys_shutdown)(int, int) = + (int (*)(int, int))SYS(shutdown); + + return sys_shutdown(fd, how); +} + +#define MSG_SOL_OOB 0x1 +#define MSG_SOL_PEEK 0x2 +#define MSG_SOL_DONTROUTE 0x4 +#define MSG_SOL_EOR 0x8 +#define MSG_SOL_CTRUNC 0x10 +#define MSG_SOL_TRUNC 0x20 +#define MSG_SOL_WAITALL 0x40 +#define MSG_SOL_DONTWAIT 0x80 + +static int solaris_to_linux_msgflags(int flags) +{ + int fl = flags & (MSG_OOB|MSG_PEEK|MSG_DONTROUTE); + + if (flags & MSG_SOL_EOR) fl |= MSG_EOR; + if (flags & MSG_SOL_CTRUNC) fl |= MSG_CTRUNC; + if (flags & MSG_SOL_TRUNC) fl |= MSG_TRUNC; + if (flags & MSG_SOL_WAITALL) fl |= MSG_WAITALL; + if (flags & MSG_SOL_DONTWAIT) fl |= MSG_DONTWAIT; + return fl; +} + +static int linux_to_solaris_msgflags(int flags) +{ + int fl = flags & (MSG_OOB|MSG_PEEK|MSG_DONTROUTE); + + if (flags & MSG_EOR) fl |= MSG_SOL_EOR; + if (flags & MSG_CTRUNC) fl |= MSG_SOL_CTRUNC; + if (flags & MSG_TRUNC) fl |= MSG_SOL_TRUNC; + if (flags & MSG_WAITALL) fl |= MSG_SOL_WAITALL; + if (flags & MSG_DONTWAIT) fl |= MSG_SOL_DONTWAIT; + return fl; +} + +asmlinkage int solaris_recvfrom(int s, char __user *buf, int len, int flags, u32 from, u32 fromlen) +{ + int (*sys_recvfrom)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *) = + (int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *))SYS(recvfrom); + + return sys_recvfrom(s, buf, len, solaris_to_linux_msgflags(flags), A(from), A(fromlen)); +} + +asmlinkage int solaris_recv(int s, char __user *buf, int len, int flags) +{ + int (*sys_recvfrom)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *) = + (int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *))SYS(recvfrom); + + return sys_recvfrom(s, buf, len, solaris_to_linux_msgflags(flags), NULL, NULL); +} + +asmlinkage int solaris_sendto(int s, char __user *buf, int len, int flags, u32 to, u32 tolen) +{ + int (*sys_sendto)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *) = + (int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *))SYS(sendto); + + return sys_sendto(s, buf, len, solaris_to_linux_msgflags(flags), A(to), A(tolen)); +} + +asmlinkage int solaris_send(int s, char *buf, int len, int flags) +{ + int (*sys_sendto)(int, void *, size_t, unsigned, struct sockaddr *, int *) = + (int (*)(int, void *, size_t, unsigned, struct sockaddr *, int *))SYS(sendto); + + return sys_sendto(s, buf, len, solaris_to_linux_msgflags(flags), NULL, NULL); +} + +asmlinkage int solaris_getpeername(int fd, struct sockaddr *addr, int *addrlen) +{ + int (*sys_getpeername)(int, struct sockaddr *, int *) = + (int (*)(int, struct sockaddr *, int *))SYS(getpeername); + + return sys_getpeername(fd, addr, addrlen); +} + +asmlinkage int solaris_getsockname(int fd, struct sockaddr *addr, int *addrlen) +{ + int (*sys_getsockname)(int, struct sockaddr *, int *) = + (int (*)(int, struct sockaddr *, int *))SYS(getsockname); + + return sys_getsockname(fd, addr, addrlen); +} + +/* XXX This really belongs in some header file... -DaveM */ +#define MAX_SOCK_ADDR 128 /* 108 for Unix domain - + 16 for IP, 16 for IPX, + 24 for IPv6, + about 80 for AX.25 */ + +struct sol_nmsghdr { + u32 msg_name; + int msg_namelen; + u32 msg_iov; + u32 msg_iovlen; + u32 msg_control; + u32 msg_controllen; + u32 msg_flags; +}; + +struct sol_cmsghdr { + u32 cmsg_len; + int cmsg_level; + int cmsg_type; + unsigned char cmsg_data[0]; +}; + +static inline int msghdr_from_user32_to_kern(struct msghdr *kmsg, + struct sol_nmsghdr __user *umsg) +{ + u32 tmp1, tmp2, tmp3; + int err; + + err = get_user(tmp1, &umsg->msg_name); + err |= __get_user(tmp2, &umsg->msg_iov); + err |= __get_user(tmp3, &umsg->msg_control); + if (err) + return -EFAULT; + + kmsg->msg_name = A(tmp1); + kmsg->msg_iov = A(tmp2); + kmsg->msg_control = A(tmp3); + + err = get_user(kmsg->msg_namelen, &umsg->msg_namelen); + err |= get_user(kmsg->msg_controllen, &umsg->msg_controllen); + err |= get_user(kmsg->msg_flags, &umsg->msg_flags); + + kmsg->msg_flags = solaris_to_linux_msgflags(kmsg->msg_flags); + + return err; +} + +asmlinkage int solaris_sendmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned user_flags) +{ + struct socket *sock; + char address[MAX_SOCK_ADDR]; + struct iovec iov[UIO_FASTIOV]; + unsigned char ctl[sizeof(struct cmsghdr) + 20]; + unsigned char *ctl_buf = ctl; + struct msghdr kern_msg; + int err, total_len; + + if(msghdr_from_user32_to_kern(&kern_msg, user_msg)) + return -EFAULT; + if(kern_msg.msg_iovlen > UIO_MAXIOV) + return -EINVAL; + err = verify_compat_iovec(&kern_msg, iov, address, VERIFY_READ); + if (err < 0) + goto out; + total_len = err; + + if(kern_msg.msg_controllen) { + struct sol_cmsghdr __user *ucmsg = kern_msg.msg_control; + unsigned long *kcmsg; + compat_size_t cmlen; + + if(kern_msg.msg_controllen > sizeof(ctl) && + kern_msg.msg_controllen <= 256) { + err = -ENOBUFS; + ctl_buf = kmalloc(kern_msg.msg_controllen, GFP_KERNEL); + if(!ctl_buf) + goto out_freeiov; + } + __get_user(cmlen, &ucmsg->cmsg_len); + kcmsg = (unsigned long *) ctl_buf; + *kcmsg++ = (unsigned long)cmlen; + err = -EFAULT; + if(copy_from_user(kcmsg, &ucmsg->cmsg_level, + kern_msg.msg_controllen - sizeof(compat_size_t))) + goto out_freectl; + kern_msg.msg_control = ctl_buf; + } + kern_msg.msg_flags = solaris_to_linux_msgflags(user_flags); + + lock_kernel(); + sock = sockfd_lookup(fd, &err); + if (sock != NULL) { + if (sock->file->f_flags & O_NONBLOCK) + kern_msg.msg_flags |= MSG_DONTWAIT; + err = sock_sendmsg(sock, &kern_msg, total_len); + sockfd_put(sock); + } + unlock_kernel(); + +out_freectl: + /* N.B. Use kfree here, as kern_msg.msg_controllen might change? */ + if(ctl_buf != ctl) + kfree(ctl_buf); +out_freeiov: + if(kern_msg.msg_iov != iov) + kfree(kern_msg.msg_iov); +out: + return err; +} + +asmlinkage int solaris_recvmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned int user_flags) +{ + struct iovec iovstack[UIO_FASTIOV]; + struct msghdr kern_msg; + char addr[MAX_SOCK_ADDR]; + struct socket *sock; + struct iovec *iov = iovstack; + struct sockaddr __user *uaddr; + int __user *uaddr_len; + unsigned long cmsg_ptr; + int err, total_len, len = 0; + + if(msghdr_from_user32_to_kern(&kern_msg, user_msg)) + return -EFAULT; + if(kern_msg.msg_iovlen > UIO_MAXIOV) + return -EINVAL; + + uaddr = kern_msg.msg_name; + uaddr_len = &user_msg->msg_namelen; + err = verify_compat_iovec(&kern_msg, iov, addr, VERIFY_WRITE); + if (err < 0) + goto out; + total_len = err; + + cmsg_ptr = (unsigned long) kern_msg.msg_control; + kern_msg.msg_flags = 0; + + lock_kernel(); + sock = sockfd_lookup(fd, &err); + if (sock != NULL) { + if (sock->file->f_flags & O_NONBLOCK) + user_flags |= MSG_DONTWAIT; + err = sock_recvmsg(sock, &kern_msg, total_len, user_flags); + if(err >= 0) + len = err; + sockfd_put(sock); + } + unlock_kernel(); + + if(uaddr != NULL && err >= 0) + err = move_addr_to_user(addr, kern_msg.msg_namelen, uaddr, uaddr_len); + if(err >= 0) { + err = __put_user(linux_to_solaris_msgflags(kern_msg.msg_flags), &user_msg->msg_flags); + if(!err) { + /* XXX Convert cmsg back into userspace 32-bit format... */ + err = __put_user((unsigned long)kern_msg.msg_control - cmsg_ptr, + &user_msg->msg_controllen); + } + } + + if(kern_msg.msg_iov != iov) + kfree(kern_msg.msg_iov); +out: + if(err < 0) + return err; + return len; +} |