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author | ed <ed@FreeBSD.org> | 2015-08-12 17:42:20 +0000 |
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committer | ed <ed@FreeBSD.org> | 2015-08-12 17:42:20 +0000 |
commit | 06774a9be2cb2fb2479675eefd5032a4276f5d66 (patch) | |
tree | 649f300fcccd320124115ba4af71c948d1349998 /sys/compat | |
parent | 63fee1ed3c12307e2e8fbbb11ada91970a9dcac9 (diff) | |
download | FreeBSD-src-06774a9be2cb2fb2479675eefd5032a4276f5d66.zip FreeBSD-src-06774a9be2cb2fb2479675eefd5032a4276f5d66.tar.gz |
Add the last remaining system calls: send() and recv().
There is still one TODO item for these calls: add file descriptor
passing. The data structures are already prepared for this. It's just
the translation that's missing.
Obtained from: http://github.com/NuxiNL/freebsd
Diffstat (limited to 'sys/compat')
-rw-r--r-- | sys/compat/cloudabi64/cloudabi64_sock.c | 104 |
1 files changed, 100 insertions, 4 deletions
diff --git a/sys/compat/cloudabi64/cloudabi64_sock.c b/sys/compat/cloudabi64/cloudabi64_sock.c index be35989..c612a32 100644 --- a/sys/compat/cloudabi64/cloudabi64_sock.c +++ b/sys/compat/cloudabi64/cloudabi64_sock.c @@ -26,23 +26,119 @@ #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 <compat/cloudabi/cloudabi_util.h> + #include <compat/cloudabi64/cloudabi64_syscalldefs.h> #include <compat/cloudabi64/cloudabi64_proto.h> +static MALLOC_DEFINE(M_SOCKET, "socket", "CloudABI socket"); + int cloudabi64_sys_sock_recv(struct thread *td, struct cloudabi64_sys_sock_recv_args *uap) { + struct sockaddr_storage ss; + cloudabi64_recv_in_t ri; + cloudabi64_recv_out_t ro = {}; + cloudabi64_iovec_t iovobj; + struct msghdr msghdr = {}; + 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); + for (i = 0; i < msghdr.msg_iovlen; i++) { + error = copyin(&((cloudabi64_iovec_t *)ri.ri_data)[i], &iovobj, + sizeof(iovobj)); + if (error != 0) { + free(msghdr.msg_iov, M_SOCKET); + return (error); + } + msghdr.msg_iov[i].iov_base = (void *)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; - /* Not implemented. */ - return (ENOSYS); + /* TODO(ed): Add file descriptor passing. */ + error = kern_recvit(td, uap->s, &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 cloudabi64_sys_sock_send(struct thread *td, struct cloudabi64_sys_sock_send_args *uap) { + cloudabi64_send_in_t si; + cloudabi64_send_out_t so = {}; + cloudabi64_ciovec_t iovobj; + struct msghdr msghdr = {}; + 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); + for (i = 0; i < msghdr.msg_iovlen; i++) { + error = copyin(&((cloudabi64_ciovec_t *)si.si_data)[i], &iovobj, + sizeof(iovobj)); + if (error != 0) { + free(msghdr.msg_iov, M_SOCKET); + return (error); + } + msghdr.msg_iov[i].iov_base = (void *)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->s, &msghdr, flags, NULL, UIO_USERSPACE); + free(msghdr.msg_iov, M_SOCKET); + if (error != 0) + return (error); - /* Not implemented. */ - return (ENOSYS); + /* 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))); } |