#include <unistd.h>
#include <errno.h>
-#include "swift_types.h"
-#include "swift_raw.h"
-
-enum sock_rw_state {
- STATE_NO_SHUT,
- STATE_SHUT_RD,
- STATE_SHUT_WR,
- STATE_SHUT_RDWR
-};
-
-/* socket management structure */
-struct sock_list {
- int s;
- struct sockaddr_sw addr;
- enum sock_rw_state rw_state;
- struct sock_list *next;
- struct sock_list *prev;
-};
-
-static struct sock_list sock_list_head = {
- .next = &sock_list_head,
- .prev = &sock_list_head
-};
-
-/*
- * Add new socket to list. Called by sw_socket "syscall".
- */
-
-static struct sock_list *list_add_socket(int s)
-{
- struct sock_list *ptr = malloc(sizeof(*ptr));
- if (ptr == NULL)
- return NULL;
-
- ptr->next = &sock_list_head;
- ptr->prev = sock_list_head.prev;
- sock_list_head.prev->next = ptr;
- sock_list_head.prev = ptr;
- ptr->s = s;
-
- return ptr;
-}
-
-/*
- * Bind socket to given address. Called by sw_bind "syscall".
- */
-
-static struct sock_list *list_update_socket_address(int s, __CONST_SOCKADDR_ARG addr)
-{
- struct sock_list *ptr;
-
- for (ptr = sock_list_head.next; ptr != &sock_list_head; ptr = ptr->next)
- if (ptr->s == s) {
- memcpy(&ptr->addr, addr, sizeof(ptr->addr));
- return ptr;
- }
-
- return NULL;
-}
-
-/*
- * Get list element containing socket s. Called by sw_send* "syscalls".
- */
-
-static struct sock_list *list_elem_from_socket(int s)
-{
- struct sock_list *ptr;
-
- for (ptr = sock_list_head.next; ptr != &sock_list_head; ptr = ptr->next)
- if (ptr->s == s) {
- return ptr;
- }
-
- return NULL;
-}
-
-/*
- * Get list element containing address addr. Called by sw_bind "syscall".
- */
-
-static struct sock_list *list_elem_from_address(__CONST_SOCKADDR_ARG addr)
-{
- struct sock_list *ptr;
-
- for (ptr = sock_list_head.next; ptr != &sock_list_head; ptr = ptr->next)
- if (memcmp(&ptr->addr, addr, sizeof(addr)) == 0)
- return ptr;
-
- return NULL;
-}
-
-static struct sock_list *list_unlink_socket(int s)
-{
- struct sock_list *ptr;
-
- for (ptr = sock_list_head.next; ptr != &sock_list_head; ptr = ptr->next)
- if (ptr->s == s) {
- ptr->next->prev = ptr->prev;
- ptr->prev->next = ptr->next;
- ptr->next = ptr;
- ptr->prev = ptr;
- return ptr;
- }
-
- return NULL;
-}
-
-/*
- * Remove socket from list. Called by sw_close "syscall".
- */
-
-static int list_remove_socket(int s)
-{
- struct sock_list *ptr;
-
- ptr = list_unlink_socket(s);
- if (ptr == NULL)
- return -1;
-
- free(ptr);
- return 0;
-}
-
+#include "include/swift_types.h"
+#include "include/swift_raw.h"
+#include "include/swift_list.h"
/*
* Create a new socket of type TYPE in domain DOMAIN, using
int s;
struct sock_list *list;
- if (__domain != PF_INET || __type != SOCK_RAW || __protocol != IPPROTO_SWIFT) {
+ if (__domain != PF_INET || __type != SOCK_DGRAM || __protocol != IPPROTO_SWIFT) {
errno = EINVAL;
goto sock_err;
}
goto list_add_err;
}
- /* Socket is fully open. */
- list->rw_state = STATE_NO_SHUT;
+ /* Socket is not bound. */
+ list->bind_state = STATE_NOTBOUND;
return s;
int sw_bind(int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
{
struct sock_list *list;
+ int rc;
+
+ rc = list_socket_is_bound(__fd);
+ if (rc == 1) {
+ errno = EINVAL;
+ goto socket_bound_err;
+ }
/* Check whether address is already in use. */
list = list_elem_from_address(__addr);
return 0;
+socket_bound_err:
list_update_err:
list_elem_err:
return -1;
struct sock_list *list;
struct iovec __iov[1];
struct msghdr __msgh;
-
+ struct sockaddr_sw *__sw_addr = (struct sockaddr_sw *) __addr;
+
+ printf("=== ADDR: %s ===", ntohl(__sw_addr->sin_addr.s_addr));
list = list_elem_from_socket(__fd);
if (list == NULL) {
errno = EBADF;
goto sock_err;
}
- if (list->rw_state == STATE_SHUT_WR || list->rw_state == STATE_SHUT_RDWR) {
- errno = ENOTCONN;
- goto sock_err;
- }
-/*
- if (list->state == STATE_NOBOUND) {
+
+ if (list->bind_state == STATE_NOTBOUND) {
errno = EDESTADDRREQ;
goto sock_err;
}
- */
+
/* Specify the components of the message in an "iovec". */
- __iov[0].iov_base = __buf;
+ __iov[0].iov_base = (void *) __buf;
__iov[0].iov_len = __n;
/* The message header contains parameters for sendmsg. */
* to *OPTVAL (which is OPTLEN bytes long).
* Returns 0 on success, -1 for errors.
*/
-
int sw_setsockopt(int __fd, int __level, int __optname,
__const void *__optval, socklen_t __optlen)
{
return setsockopt(__fd, __level, __optname, __optval, __optlen);
}
-/*
- * Shut down all or part of the connection open on socket FD.
- * HOW determines what to shut down:
- * SHUT_RD = No more receptions;
- * SHUT_WR = No more transmissions;
- * SHUT_RDWR = No more receptions or transmissions.
- * Returns 0 on success, -1 for errors.
- */
-int sw_shutdown(int __fd, int __how)
-{
- struct sock_list *list;
- int rc;
-
- /* Find socket in management structure. */
- list = list_elem_from_socket(__fd);
- if (list == NULL) {
- errno = EBADF;
- goto list_elem_err;
- }
-
- /* Check and update socket state. */
- if (__how == STATE_SHUT_RDWR)
- list->rw_state = STATE_SHUT_RDWR;
- else if (__how == STATE_SHUT_WR) {
- if (list->rw_state == STATE_SHUT_RD)
- list->rw_state = STATE_SHUT_RDWR;
- else if (list->rw_state == STATE_SHUT_WR) {
- errno = ENOTCONN;
- goto not_conn_err;
- }
- }
- else if (__how == STATE_SHUT_RD) {
- if (list->rw_state == STATE_SHUT_WR)
- list->rw_state = STATE_SHUT_RDWR;
- else if (list->rw_state == STATE_SHUT_RD) {
- errno = ENOTCONN;
- goto not_conn_err;
- }
- }
-
- /* Remove socket from socket management structure. */
- if (list->rw_state == STATE_SHUT_RDWR) {
- rc = list_remove_socket(__fd);
- if (rc < 0) {
- errno = EBADF;
- goto list_unlink_err;
- }
- }
-
- /* Call classical interface of shutdown(2). */
- return shutdown(__fd, __how);
-
-not_conn_err:
-list_elem_err:
-list_unlink_err:
- return -1;
-}
-
/*
* Close file descriptor for socket FD.
* Returns 0 on success, -1 for errors.
projects / swifty.git / blobdiff