diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2012-04-03 16:15:34 +0200 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2012-04-03 16:21:23 +0200 |
commit | 58f665583e8023f1245910e953eafff05121e782 (patch) | |
tree | e8dca109f1fe737f098bb1558229c34d678eaee3 /cpukit/libnetworking/rtems | |
parent | Filesystem: Change type of ioctl_return (diff) | |
download | rtems-58f665583e8023f1245910e953eafff05121e782.tar.bz2 |
networking: socket to/from file descriptor
o Move rtems_bsdnet_fdToSocket() and rtems_bsdnet_makeFdForSocket() to
"cpukit/libnetworking/rtems/rtems_syscall.c".
o The rtems_bsdnet_makeFdForSocket() function is now static.
o Check in rtems_bsdnet_fdToSocket() function that the file descriptor
uses the socket handlers, otherwise an error status will be returned
and errno set to ENOTSOCK.
o New test libtests/syscall01.
Diffstat (limited to 'cpukit/libnetworking/rtems')
-rw-r--r-- | cpukit/libnetworking/rtems/rtems_bsdnet_internal.h | 2 | ||||
-rw-r--r-- | cpukit/libnetworking/rtems/rtems_syscall.c | 61 |
2 files changed, 58 insertions, 5 deletions
diff --git a/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h b/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h index 3e1ce72455..8c43701523 100644 --- a/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h +++ b/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h @@ -199,8 +199,6 @@ int ioctl (int, ioctl_command_t, ...); # error "Network event conflict" #endif -int rtems_bsdnet_makeFdForSocket( - void *so, const rtems_filesystem_file_handlers_r *h); struct socket *rtems_bsdnet_fdToSocket(int fd); #ifdef __cplusplus diff --git a/cpukit/libnetworking/rtems/rtems_syscall.c b/cpukit/libnetworking/rtems/rtems_syscall.c index 9935a69e67..0a4ae91371 100644 --- a/cpukit/libnetworking/rtems/rtems_syscall.c +++ b/cpukit/libnetworking/rtems/rtems_syscall.c @@ -13,7 +13,7 @@ #include <errno.h> #include <rtems.h> -#include <rtems/libio.h> +#include <rtems/libio_.h> #include <rtems/error.h> #include <rtems/rtems_bsdnet.h> @@ -44,6 +44,61 @@ ssize_t recv(int, void *, size_t, int); static const rtems_filesystem_file_handlers_r socket_handlers; /* + * Convert an RTEMS file descriptor to a BSD socket pointer. + */ +struct socket * +rtems_bsdnet_fdToSocket (int fd) +{ + rtems_libio_t *iop; + + /* same as rtems_libio_check_fd(_fd) but different return */ + if ((uint32_t)fd >= rtems_libio_number_iops) { + errno = EBADF; + return NULL; + } + iop = &rtems_libio_iops[fd]; + + /* same as rtems_libio_check_is_open(iop) but different return */ + if ((iop->flags & LIBIO_FLAGS_OPEN) == 0) { + errno = EBADF; + return NULL; + } + + if (iop->pathinfo.handlers != &socket_handlers) { + errno = ENOTSOCK; + return NULL; + } + + if (iop->data1 == NULL) + errno = EBADF; + return iop->data1; +} + +/* + * Create an RTEMS file descriptor for a socket + */ +static int +rtems_bsdnet_makeFdForSocket (void *so) +{ + rtems_libio_t *iop; + int fd; + + iop = rtems_libio_allocate(); + if (iop == 0) + rtems_set_errno_and_return_minus_one( ENFILE ); + + fd = iop - rtems_libio_iops; + iop->flags |= LIBIO_FLAGS_WRITE | LIBIO_FLAGS_READ; + iop->data0 = fd; + iop->data1 = so; + iop->pathinfo.handlers = &socket_handlers; + iop->pathinfo.ops = &rtems_filesystem_operations_default; + iop->pathinfo.mt_entry = &rtems_filesystem_null_mt_entry; + rtems_filesystem_location_add_to_mt_entry(&iop->pathinfo); + return fd; +} + +/* * Package system call argument into mbuf. */ static int @@ -82,7 +137,7 @@ socket (int domain, int type, int protocol) rtems_bsdnet_semaphore_obtain (); error = socreate(domain, &so, type, protocol, NULL); if (error == 0) { - fd = rtems_bsdnet_makeFdForSocket (so, &socket_handlers); + fd = rtems_bsdnet_makeFdForSocket (so); if (fd < 0) soclose (so); } @@ -233,7 +288,7 @@ accept (int s, struct sockaddr *name, int *namelen) TAILQ_REMOVE(&head->so_comp, so, so_list); head->so_qlen--; - fd = rtems_bsdnet_makeFdForSocket (so, &socket_handlers); + fd = rtems_bsdnet_makeFdForSocket (so); if (fd < 0) { TAILQ_INSERT_HEAD(&head->so_comp, so, so_list); head->so_qlen++; |