diff options
| -rw-r--r-- | sys/conf/files | 1 | ||||
| -rw-r--r-- | sys/kern/uipc_sockbuf.c | 52 | ||||
| -rw-r--r-- | sys/kern/uipc_socket.c | 298 | ||||
| -rw-r--r-- | sys/kern/uipc_socket2.c | 397 |
4 files changed, 350 insertions, 398 deletions
diff --git a/sys/conf/files b/sys/conf/files index 6c7069e..4f18935 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -1459,7 +1459,6 @@ kern/uipc_mqueue.c optional p1003_1b_mqueue kern/uipc_sem.c optional p1003_1b_semaphores kern/uipc_sockbuf.c standard kern/uipc_socket.c standard -kern/uipc_socket2.c standard kern/uipc_syscalls.c standard kern/uipc_usrreq.c standard kern/vfs_acl.c standard diff --git a/sys/kern/uipc_sockbuf.c b/sys/kern/uipc_sockbuf.c index 638f485..2293eef 100644 --- a/sys/kern/uipc_sockbuf.c +++ b/sys/kern/uipc_sockbuf.c @@ -979,6 +979,58 @@ sbdroprecord(struct sockbuf *sb) SOCKBUF_UNLOCK(sb); } +/* + * Create a "control" mbuf containing the specified data + * with the specified type for presentation on a socket buffer. + */ +struct mbuf * +sbcreatecontrol(p, size, type, level) + caddr_t p; + register int size; + int type, level; +{ + register struct cmsghdr *cp; + struct mbuf *m; + + if (CMSG_SPACE((u_int)size) > MCLBYTES) + return ((struct mbuf *) NULL); + if (CMSG_SPACE((u_int)size) > MLEN) + m = m_getcl(M_DONTWAIT, MT_CONTROL, 0); + else + m = m_get(M_DONTWAIT, MT_CONTROL); + if (m == NULL) + return ((struct mbuf *) NULL); + cp = mtod(m, struct cmsghdr *); + m->m_len = 0; + KASSERT(CMSG_SPACE((u_int)size) <= M_TRAILINGSPACE(m), + ("sbcreatecontrol: short mbuf")); + if (p != NULL) + (void)memcpy(CMSG_DATA(cp), p, size); + m->m_len = CMSG_SPACE(size); + cp->cmsg_len = CMSG_LEN(size); + cp->cmsg_level = level; + cp->cmsg_type = type; + return (m); +} + +/* + * This does the same for sockbufs. Note that the xsockbuf structure, + * since it is always embedded in a socket, does not include a self + * pointer nor a length. We make this entry point public in case + * some other mechanism needs it. + */ +void +sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb) +{ + xsb->sb_cc = sb->sb_cc; + xsb->sb_hiwat = sb->sb_hiwat; + xsb->sb_mbcnt = sb->sb_mbcnt; + xsb->sb_mbmax = sb->sb_mbmax; + xsb->sb_lowat = sb->sb_lowat; + xsb->sb_flags = sb->sb_flags; + xsb->sb_timeo = sb->sb_timeo; +} + /* This takes the place of kern.maxsockbuf, which moved to kern.ipc. */ static int dummy; SYSCTL_INT(_kern, KERN_DUMMY, dummy, CTLFLAG_RW, &dummy, 0, ""); diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c index 2c9363e..7d5a95a 100644 --- a/sys/kern/uipc_socket.c +++ b/sys/kern/uipc_socket.c @@ -123,6 +123,7 @@ __FBSDID("$FreeBSD$"); #include <sys/socketvar.h> #include <sys/resourcevar.h> #include <sys/signalvar.h> +#include <sys/stat.h> #include <sys/sysctl.h> #include <sys/uio.h> #include <sys/jail.h> @@ -2593,6 +2594,129 @@ soo_kqfilter(struct file *fp, struct knote *kn) return (0); } +/* + * Some routines that return EOPNOTSUPP for entry points that are not + * supported by a protocol. Fill in as needed. + */ +int +pru_accept_notsupp(struct socket *so, struct sockaddr **nam) +{ + return EOPNOTSUPP; +} + +int +pru_attach_notsupp(struct socket *so, int proto, struct thread *td) +{ + return EOPNOTSUPP; +} + +int +pru_bind_notsupp(struct socket *so, struct sockaddr *nam, struct thread *td) +{ + return EOPNOTSUPP; +} + +int +pru_connect_notsupp(struct socket *so, struct sockaddr *nam, struct thread *td) +{ + return EOPNOTSUPP; +} + +int +pru_connect2_notsupp(struct socket *so1, struct socket *so2) +{ + return EOPNOTSUPP; +} + +int +pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data, + struct ifnet *ifp, struct thread *td) +{ + return EOPNOTSUPP; +} + +int +pru_disconnect_notsupp(struct socket *so) +{ + return EOPNOTSUPP; +} + +int +pru_listen_notsupp(struct socket *so, int backlog, struct thread *td) +{ + return EOPNOTSUPP; +} + +int +pru_peeraddr_notsupp(struct socket *so, struct sockaddr **nam) +{ + return EOPNOTSUPP; +} + +int +pru_rcvd_notsupp(struct socket *so, int flags) +{ + return EOPNOTSUPP; +} + +int +pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags) +{ + return EOPNOTSUPP; +} + +int +pru_send_notsupp(struct socket *so, int flags, struct mbuf *m, + struct sockaddr *addr, struct mbuf *control, struct thread *td) +{ + return EOPNOTSUPP; +} + +/* + * This isn't really a ``null'' operation, but it's the default one + * and doesn't do anything destructive. + */ +int +pru_sense_null(struct socket *so, struct stat *sb) +{ + sb->st_blksize = so->so_snd.sb_hiwat; + return 0; +} + +int +pru_shutdown_notsupp(struct socket *so) +{ + return EOPNOTSUPP; +} + +int +pru_sockaddr_notsupp(struct socket *so, struct sockaddr **nam) +{ + return EOPNOTSUPP; +} + +int +pru_sosend_notsupp(struct socket *so, struct sockaddr *addr, struct uio *uio, + struct mbuf *top, struct mbuf *control, int flags, struct thread *td) +{ + return EOPNOTSUPP; +} + +int +pru_soreceive_notsupp(struct socket *so, struct sockaddr **paddr, + struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, + int *flagsp) +{ + return EOPNOTSUPP; +} + +int +pru_sopoll_notsupp(struct socket *so, int events, struct ucred *cred, + struct thread *td) +{ + return EOPNOTSUPP; +} + static void filt_sordetach(struct knote *kn) { @@ -2701,3 +2825,177 @@ sysctl_somaxconn(SYSCTL_HANDLER_ARGS) somaxconn = val; return (0); } + +/* + * Primitive routines for operating on sockets. + */ + +/* + * Procedures to manipulate state flags of socket + * and do appropriate wakeups. Normal sequence from the + * active (originating) side is that soisconnecting() is + * called during processing of connect() call, + * resulting in an eventual call to soisconnected() if/when the + * connection is established. When the connection is torn down + * soisdisconnecting() is called during processing of disconnect() call, + * and soisdisconnected() is called when the connection to the peer + * is totally severed. The semantics of these routines are such that + * connectionless protocols can call soisconnected() and soisdisconnected() + * only, bypassing the in-progress calls when setting up a ``connection'' + * takes no time. + * + * From the passive side, a socket is created with + * two queues of sockets: so_incomp for connections in progress + * and so_comp for connections already made and awaiting user acceptance. + * As a protocol is preparing incoming connections, it creates a socket + * structure queued on so_incomp by calling sonewconn(). When the connection + * is established, soisconnected() is called, and transfers the + * socket structure to so_comp, making it available to accept(). + * + * If a socket is closed with sockets on either + * so_incomp or so_comp, these sockets are dropped. + * + * If higher level protocols are implemented in + * the kernel, the wakeups done here will sometimes + * cause software-interrupt process scheduling. + */ + +void +soisconnecting(so) + register struct socket *so; +{ + + SOCK_LOCK(so); + so->so_state &= ~(SS_ISCONNECTED|SS_ISDISCONNECTING); + so->so_state |= SS_ISCONNECTING; + SOCK_UNLOCK(so); +} + +void +soisconnected(so) + struct socket *so; +{ + struct socket *head; + + ACCEPT_LOCK(); + SOCK_LOCK(so); + so->so_state &= ~(SS_ISCONNECTING|SS_ISDISCONNECTING|SS_ISCONFIRMING); + so->so_state |= SS_ISCONNECTED; + head = so->so_head; + if (head != NULL && (so->so_qstate & SQ_INCOMP)) { + if ((so->so_options & SO_ACCEPTFILTER) == 0) { + SOCK_UNLOCK(so); + TAILQ_REMOVE(&head->so_incomp, so, so_list); + head->so_incqlen--; + so->so_qstate &= ~SQ_INCOMP; + TAILQ_INSERT_TAIL(&head->so_comp, so, so_list); + head->so_qlen++; + so->so_qstate |= SQ_COMP; + ACCEPT_UNLOCK(); + sorwakeup(head); + wakeup_one(&head->so_timeo); + } else { + ACCEPT_UNLOCK(); + so->so_upcall = + head->so_accf->so_accept_filter->accf_callback; + so->so_upcallarg = head->so_accf->so_accept_filter_arg; + so->so_rcv.sb_flags |= SB_UPCALL; + so->so_options &= ~SO_ACCEPTFILTER; + SOCK_UNLOCK(so); + so->so_upcall(so, so->so_upcallarg, M_DONTWAIT); + } + return; + } + SOCK_UNLOCK(so); + ACCEPT_UNLOCK(); + wakeup(&so->so_timeo); + sorwakeup(so); + sowwakeup(so); +} + +void +soisdisconnecting(so) + register struct socket *so; +{ + + /* + * Note: This code assumes that SOCK_LOCK(so) and + * SOCKBUF_LOCK(&so->so_rcv) are the same. + */ + SOCKBUF_LOCK(&so->so_rcv); + so->so_state &= ~SS_ISCONNECTING; + so->so_state |= SS_ISDISCONNECTING; + so->so_rcv.sb_state |= SBS_CANTRCVMORE; + sorwakeup_locked(so); + SOCKBUF_LOCK(&so->so_snd); + so->so_snd.sb_state |= SBS_CANTSENDMORE; + sowwakeup_locked(so); + wakeup(&so->so_timeo); +} + +void +soisdisconnected(so) + register struct socket *so; +{ + + /* + * Note: This code assumes that SOCK_LOCK(so) and + * SOCKBUF_LOCK(&so->so_rcv) are the same. + */ + SOCKBUF_LOCK(&so->so_rcv); + so->so_state &= ~(SS_ISCONNECTING|SS_ISCONNECTED|SS_ISDISCONNECTING); + so->so_state |= SS_ISDISCONNECTED; + so->so_rcv.sb_state |= SBS_CANTRCVMORE; + sorwakeup_locked(so); + SOCKBUF_LOCK(&so->so_snd); + so->so_snd.sb_state |= SBS_CANTSENDMORE; + sbdrop_locked(&so->so_snd, so->so_snd.sb_cc); + sowwakeup_locked(so); + wakeup(&so->so_timeo); +} + +/* + * Make a copy of a sockaddr in a malloced buffer of type M_SONAME. + */ +struct sockaddr * +sodupsockaddr(const struct sockaddr *sa, int mflags) +{ + struct sockaddr *sa2; + + sa2 = malloc(sa->sa_len, M_SONAME, mflags); + if (sa2) + bcopy(sa, sa2, sa->sa_len); + return sa2; +} + +/* + * Create an external-format (``xsocket'') structure using the information + * in the kernel-format socket structure pointed to by so. This is done + * to reduce the spew of irrelevant information over this interface, + * to isolate user code from changes in the kernel structure, and + * potentially to provide information-hiding if we decide that + * some of this information should be hidden from users. + */ +void +sotoxsocket(struct socket *so, struct xsocket *xso) +{ + xso->xso_len = sizeof *xso; + xso->xso_so = so; + xso->so_type = so->so_type; + xso->so_options = so->so_options; + xso->so_linger = so->so_linger; + xso->so_state = so->so_state; + xso->so_pcb = so->so_pcb; + xso->xso_protocol = so->so_proto->pr_protocol; + xso->xso_family = so->so_proto->pr_domain->dom_family; + xso->so_qlen = so->so_qlen; + xso->so_incqlen = so->so_incqlen; + xso->so_qlimit = so->so_qlimit; + xso->so_timeo = so->so_timeo; + xso->so_error = so->so_error; + xso->so_pgid = so->so_sigio ? so->so_sigio->sio_pgid : 0; + xso->so_oobmark = so->so_oobmark; + sbtoxsockbuf(&so->so_snd, &xso->so_snd); + sbtoxsockbuf(&so->so_rcv, &xso->so_rcv); + xso->so_uid = so->so_cred->cr_uid; +} diff --git a/sys/kern/uipc_socket2.c b/sys/kern/uipc_socket2.c deleted file mode 100644 index 5a4a261..0000000 --- a/sys/kern/uipc_socket2.c +++ /dev/null @@ -1,397 +0,0 @@ -/*- - * Copyright (c) 1982, 1986, 1988, 1990, 1993 - * The Regents of the University of California. 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. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. - * - * @(#)uipc_socket2.c 8.1 (Berkeley) 6/10/93 - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "opt_param.h" - -#include <sys/param.h> -#include <sys/domain.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/mutex.h> -#include <sys/proc.h> -#include <sys/protosw.h> -#include <sys/resourcevar.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/stat.h> - -/* - * Primitive routines for operating on sockets. - */ - -/* - * Procedures to manipulate state flags of socket - * and do appropriate wakeups. Normal sequence from the - * active (originating) side is that soisconnecting() is - * called during processing of connect() call, - * resulting in an eventual call to soisconnected() if/when the - * connection is established. When the connection is torn down - * soisdisconnecting() is called during processing of disconnect() call, - * and soisdisconnected() is called when the connection to the peer - * is totally severed. The semantics of these routines are such that - * connectionless protocols can call soisconnected() and soisdisconnected() - * only, bypassing the in-progress calls when setting up a ``connection'' - * takes no time. - * - * From the passive side, a socket is created with - * two queues of sockets: so_incomp for connections in progress - * and so_comp for connections already made and awaiting user acceptance. - * As a protocol is preparing incoming connections, it creates a socket - * structure queued on so_incomp by calling sonewconn(). When the connection - * is established, soisconnected() is called, and transfers the - * socket structure to so_comp, making it available to accept(). - * - * If a socket is closed with sockets on either - * so_incomp or so_comp, these sockets are dropped. - * - * If higher level protocols are implemented in - * the kernel, the wakeups done here will sometimes - * cause software-interrupt process scheduling. - */ - -void -soisconnecting(so) - register struct socket *so; -{ - - SOCK_LOCK(so); - so->so_state &= ~(SS_ISCONNECTED|SS_ISDISCONNECTING); - so->so_state |= SS_ISCONNECTING; - SOCK_UNLOCK(so); -} - -void -soisconnected(so) - struct socket *so; -{ - struct socket *head; - - ACCEPT_LOCK(); - SOCK_LOCK(so); - so->so_state &= ~(SS_ISCONNECTING|SS_ISDISCONNECTING|SS_ISCONFIRMING); - so->so_state |= SS_ISCONNECTED; - head = so->so_head; - if (head != NULL && (so->so_qstate & SQ_INCOMP)) { - if ((so->so_options & SO_ACCEPTFILTER) == 0) { - SOCK_UNLOCK(so); - TAILQ_REMOVE(&head->so_incomp, so, so_list); - head->so_incqlen--; - so->so_qstate &= ~SQ_INCOMP; - TAILQ_INSERT_TAIL(&head->so_comp, so, so_list); - head->so_qlen++; - so->so_qstate |= SQ_COMP; - ACCEPT_UNLOCK(); - sorwakeup(head); - wakeup_one(&head->so_timeo); - } else { - ACCEPT_UNLOCK(); - so->so_upcall = - head->so_accf->so_accept_filter->accf_callback; - so->so_upcallarg = head->so_accf->so_accept_filter_arg; - so->so_rcv.sb_flags |= SB_UPCALL; - so->so_options &= ~SO_ACCEPTFILTER; - SOCK_UNLOCK(so); - so->so_upcall(so, so->so_upcallarg, M_DONTWAIT); - } - return; - } - SOCK_UNLOCK(so); - ACCEPT_UNLOCK(); - wakeup(&so->so_timeo); - sorwakeup(so); - sowwakeup(so); -} - -void -soisdisconnecting(so) - register struct socket *so; -{ - - /* - * Note: This code assumes that SOCK_LOCK(so) and - * SOCKBUF_LOCK(&so->so_rcv) are the same. - */ - SOCKBUF_LOCK(&so->so_rcv); - so->so_state &= ~SS_ISCONNECTING; - so->so_state |= SS_ISDISCONNECTING; - so->so_rcv.sb_state |= SBS_CANTRCVMORE; - sorwakeup_locked(so); - SOCKBUF_LOCK(&so->so_snd); - so->so_snd.sb_state |= SBS_CANTSENDMORE; - sowwakeup_locked(so); - wakeup(&so->so_timeo); -} - -void -soisdisconnected(so) - register struct socket *so; -{ - - /* - * Note: This code assumes that SOCK_LOCK(so) and - * SOCKBUF_LOCK(&so->so_rcv) are the same. - */ - SOCKBUF_LOCK(&so->so_rcv); - so->so_state &= ~(SS_ISCONNECTING|SS_ISCONNECTED|SS_ISDISCONNECTING); - so->so_state |= SS_ISDISCONNECTED; - so->so_rcv.sb_state |= SBS_CANTRCVMORE; - sorwakeup_locked(so); - SOCKBUF_LOCK(&so->so_snd); - so->so_snd.sb_state |= SBS_CANTSENDMORE; - sbdrop_locked(&so->so_snd, so->so_snd.sb_cc); - sowwakeup_locked(so); - wakeup(&so->so_timeo); -} - -/* - * Create a "control" mbuf containing the specified data - * with the specified type for presentation on a socket buffer. - */ -struct mbuf * -sbcreatecontrol(p, size, type, level) - caddr_t p; - register int size; - int type, level; -{ - register struct cmsghdr *cp; - struct mbuf *m; - - if (CMSG_SPACE((u_int)size) > MCLBYTES) - return ((struct mbuf *) NULL); - if (CMSG_SPACE((u_int)size) > MLEN) - m = m_getcl(M_DONTWAIT, MT_CONTROL, 0); - else - m = m_get(M_DONTWAIT, MT_CONTROL); - if (m == NULL) - return ((struct mbuf *) NULL); - cp = mtod(m, struct cmsghdr *); - m->m_len = 0; - KASSERT(CMSG_SPACE((u_int)size) <= M_TRAILINGSPACE(m), - ("sbcreatecontrol: short mbuf")); - if (p != NULL) - (void)memcpy(CMSG_DATA(cp), p, size); - m->m_len = CMSG_SPACE(size); - cp->cmsg_len = CMSG_LEN(size); - cp->cmsg_level = level; - cp->cmsg_type = type; - return (m); -} - -/* - * Some routines that return EOPNOTSUPP for entry points that are not - * supported by a protocol. Fill in as needed. - */ -int -pru_accept_notsupp(struct socket *so, struct sockaddr **nam) -{ - return EOPNOTSUPP; -} - -int -pru_attach_notsupp(struct socket *so, int proto, struct thread *td) -{ - return EOPNOTSUPP; -} - -int -pru_bind_notsupp(struct socket *so, struct sockaddr *nam, struct thread *td) -{ - return EOPNOTSUPP; -} - -int -pru_connect_notsupp(struct socket *so, struct sockaddr *nam, struct thread *td) -{ - return EOPNOTSUPP; -} - -int -pru_connect2_notsupp(struct socket *so1, struct socket *so2) -{ - return EOPNOTSUPP; -} - -int -pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data, - struct ifnet *ifp, struct thread *td) -{ - return EOPNOTSUPP; -} - -int -pru_disconnect_notsupp(struct socket *so) -{ - return EOPNOTSUPP; -} - -int -pru_listen_notsupp(struct socket *so, int backlog, struct thread *td) -{ - return EOPNOTSUPP; -} - -int -pru_peeraddr_notsupp(struct socket *so, struct sockaddr **nam) -{ - return EOPNOTSUPP; -} - -int -pru_rcvd_notsupp(struct socket *so, int flags) -{ - return EOPNOTSUPP; -} - -int -pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags) -{ - return EOPNOTSUPP; -} - -int -pru_send_notsupp(struct socket *so, int flags, struct mbuf *m, - struct sockaddr *addr, struct mbuf *control, struct thread *td) -{ - return EOPNOTSUPP; -} - -/* - * This isn't really a ``null'' operation, but it's the default one - * and doesn't do anything destructive. - */ -int -pru_sense_null(struct socket *so, struct stat *sb) -{ - sb->st_blksize = so->so_snd.sb_hiwat; - return 0; -} - -int -pru_shutdown_notsupp(struct socket *so) -{ - return EOPNOTSUPP; -} - -int -pru_sockaddr_notsupp(struct socket *so, struct sockaddr **nam) -{ - return EOPNOTSUPP; -} - -int -pru_sosend_notsupp(struct socket *so, struct sockaddr *addr, struct uio *uio, - struct mbuf *top, struct mbuf *control, int flags, struct thread *td) -{ - return EOPNOTSUPP; -} - -int -pru_soreceive_notsupp(struct socket *so, struct sockaddr **paddr, - struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, - int *flagsp) -{ - return EOPNOTSUPP; -} - -int -pru_sopoll_notsupp(struct socket *so, int events, struct ucred *cred, - struct thread *td) -{ - return EOPNOTSUPP; -} - -/* - * Make a copy of a sockaddr in a malloced buffer of type M_SONAME. - */ -struct sockaddr * -sodupsockaddr(const struct sockaddr *sa, int mflags) -{ - struct sockaddr *sa2; - - sa2 = malloc(sa->sa_len, M_SONAME, mflags); - if (sa2) - bcopy(sa, sa2, sa->sa_len); - return sa2; -} - -/* - * Create an external-format (``xsocket'') structure using the information - * in the kernel-format socket structure pointed to by so. This is done - * to reduce the spew of irrelevant information over this interface, - * to isolate user code from changes in the kernel structure, and - * potentially to provide information-hiding if we decide that - * some of this information should be hidden from users. - */ -void -sotoxsocket(struct socket *so, struct xsocket *xso) -{ - xso->xso_len = sizeof *xso; - xso->xso_so = so; - xso->so_type = so->so_type; - xso->so_options = so->so_options; - xso->so_linger = so->so_linger; - xso->so_state = so->so_state; - xso->so_pcb = so->so_pcb; - xso->xso_protocol = so->so_proto->pr_protocol; - xso->xso_family = so->so_proto->pr_domain->dom_family; - xso->so_qlen = so->so_qlen; - xso->so_incqlen = so->so_incqlen; - xso->so_qlimit = so->so_qlimit; - xso->so_timeo = so->so_timeo; - xso->so_error = so->so_error; - xso->so_pgid = so->so_sigio ? so->so_sigio->sio_pgid : 0; - xso->so_oobmark = so->so_oobmark; - sbtoxsockbuf(&so->so_snd, &xso->so_snd); - sbtoxsockbuf(&so->so_rcv, &xso->so_rcv); - xso->so_uid = so->so_cred->cr_uid; -} - -/* - * This does the same for sockbufs. Note that the xsockbuf structure, - * since it is always embedded in a socket, does not include a self - * pointer nor a length. We make this entry point public in case - * some other mechanism needs it. - */ -void -sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb) -{ - xsb->sb_cc = sb->sb_cc; - xsb->sb_hiwat = sb->sb_hiwat; - xsb->sb_mbcnt = sb->sb_mbcnt; - xsb->sb_mbmax = sb->sb_mbmax; - xsb->sb_lowat = sb->sb_lowat; - xsb->sb_flags = sb->sb_flags; - xsb->sb_timeo = sb->sb_timeo; -} |
