diff options
Diffstat (limited to 'sys/compat/cloudabi32/cloudabi32_sock.c')
| -rw-r--r-- | sys/compat/cloudabi32/cloudabi32_sock.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/sys/compat/cloudabi32/cloudabi32_sock.c b/sys/compat/cloudabi32/cloudabi32_sock.c new file mode 100644 index 0000000..24ed32c --- /dev/null +++ b/sys/compat/cloudabi32/cloudabi32_sock.c @@ -0,0 +1,148 @@ +/*- + * Copyright (c) 2015 Nuxi, https://nuxi.nl/ + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/proc.h> +#include <sys/socket.h> +#include <sys/syscallsubr.h> +#include <sys/systm.h> +#include <sys/uio.h> + +#include <contrib/cloudabi/cloudabi32_types.h> + +#include <compat/cloudabi/cloudabi_util.h> + +#include <compat/cloudabi32/cloudabi32_proto.h> +#include <compat/cloudabi32/cloudabi32_util.h> + +static MALLOC_DEFINE(M_SOCKET, "socket", "CloudABI socket"); + +int +cloudabi32_sys_sock_recv(struct thread *td, + struct cloudabi32_sys_sock_recv_args *uap) +{ + struct sockaddr_storage ss; + cloudabi32_recv_in_t ri; + cloudabi32_recv_out_t ro = {}; + cloudabi32_iovec_t iovobj; + struct msghdr msghdr = {}; + const cloudabi32_iovec_t *user_iov; + size_t i; + int error; + + error = copyin(uap->in, &ri, sizeof(ri)); + if (error != 0) + return (error); + + /* Convert results in cloudabi_recv_in_t to struct msghdr. */ + if (ri.ri_datalen > UIO_MAXIOV) + return (EINVAL); + msghdr.msg_iovlen = ri.ri_datalen; + msghdr.msg_iov = malloc(msghdr.msg_iovlen * sizeof(struct iovec), + M_SOCKET, M_WAITOK); + user_iov = TO_PTR(ri.ri_data); + for (i = 0; i < msghdr.msg_iovlen; i++) { + error = copyin(&user_iov[i], &iovobj, sizeof(iovobj)); + if (error != 0) { + free(msghdr.msg_iov, M_SOCKET); + return (error); + } + msghdr.msg_iov[i].iov_base = TO_PTR(iovobj.iov_base); + msghdr.msg_iov[i].iov_len = iovobj.iov_len; + } + msghdr.msg_name = &ss; + msghdr.msg_namelen = sizeof(ss); + if (ri.ri_flags & CLOUDABI_MSG_PEEK) + msghdr.msg_flags |= MSG_PEEK; + if (ri.ri_flags & CLOUDABI_MSG_WAITALL) + msghdr.msg_flags |= MSG_WAITALL; + + /* TODO(ed): Add file descriptor passing. */ + error = kern_recvit(td, uap->sock, &msghdr, UIO_SYSSPACE, NULL); + free(msghdr.msg_iov, M_SOCKET); + if (error != 0) + return (error); + + /* Convert results in msghdr to cloudabi_recv_out_t. */ + ro.ro_datalen = td->td_retval[0]; + cloudabi_convert_sockaddr((struct sockaddr *)&ss, + MIN(msghdr.msg_namelen, sizeof(ss)), &ro.ro_peername); + td->td_retval[0] = 0; + return (copyout(&ro, uap->out, sizeof(ro))); +} + +int +cloudabi32_sys_sock_send(struct thread *td, + struct cloudabi32_sys_sock_send_args *uap) +{ + cloudabi32_send_in_t si; + cloudabi32_send_out_t so = {}; + cloudabi32_ciovec_t iovobj; + struct msghdr msghdr = {}; + const cloudabi32_ciovec_t *user_iov; + size_t i; + int error, flags; + + error = copyin(uap->in, &si, sizeof(si)); + if (error != 0) + return (error); + + /* Convert results in cloudabi_send_in_t to struct msghdr. */ + if (si.si_datalen > UIO_MAXIOV) + return (EINVAL); + msghdr.msg_iovlen = si.si_datalen; + msghdr.msg_iov = malloc(msghdr.msg_iovlen * sizeof(struct iovec), + M_SOCKET, M_WAITOK); + user_iov = TO_PTR(si.si_data); + for (i = 0; i < msghdr.msg_iovlen; i++) { + error = copyin(&user_iov[i], &iovobj, sizeof(iovobj)); + if (error != 0) { + free(msghdr.msg_iov, M_SOCKET); + return (error); + } + msghdr.msg_iov[i].iov_base = TO_PTR(iovobj.iov_base); + msghdr.msg_iov[i].iov_len = iovobj.iov_len; + } + + flags = MSG_NOSIGNAL; + if (si.si_flags & CLOUDABI_MSG_EOR) + flags |= MSG_EOR; + + /* TODO(ed): Add file descriptor passing. */ + error = kern_sendit(td, uap->sock, &msghdr, flags, NULL, UIO_USERSPACE); + free(msghdr.msg_iov, M_SOCKET); + if (error != 0) + return (error); + + /* Convert results in msghdr to cloudabi_send_out_t. */ + so.so_datalen = td->td_retval[0]; + td->td_retval[0] = 0; + return (copyout(&so, uap->out, sizeof(so))); +} |
