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Implement sock_send_to and sock_recv_from system calls (#1457)

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This commit is contained in:
Marcin Kolny
2022-09-13 02:00:05 +01:00
committed by GitHub
parent 56b4a8bd4c
commit b731ca4668
16 changed files with 844 additions and 254 deletions
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50
core/iwasm/libraries/lib-socket/inc/wasi_socket_ext.h
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@ -126,6 +126,14 @@ recvmsg(int sockfd, struct msghdr *msg, int flags);
ssize_t
sendmsg(int sockfd, const struct msghdr *msg, int flags);
ssize_t
sendto(int sockfd, const void *buf, size_t len, int flags,
const struct sockaddr *dest_addr, socklen_t addrlen);
ssize_t
recvfrom(int sockfd, void *buf, size_t len, int flags,
struct sockaddr *src_addr, socklen_t *addrlen);
int
socket(int domain, int type, int protocol);
@ -257,6 +265,48 @@ __wasi_sock_bind(__wasi_fd_t fd, __wasi_addr_t *addr)
(int32_t)fd, (int32_t)addr);
}
/**
* Send data to a specific target
* Note: This is similar to `sendto` in POSIX
*/
int32_t
__imported_wasi_snapshot_preview1_sock_send_to(int32_t arg0, int32_t arg1,
int32_t arg2, int32_t arg3,
int32_t arg4, int32_t arg5)
__attribute__((__import_module__("wasi_snapshot_preview1"),
__import_name__("sock_send_to")));
static inline __wasi_errno_t
__wasi_sock_send_to(__wasi_fd_t fd, const __wasi_ciovec_t *si_data,
uint32_t si_data_len, __wasi_siflags_t si_flags,
const __wasi_addr_t *dest_addr, uint32_t *so_data_len)
{
return (__wasi_errno_t)__imported_wasi_snapshot_preview1_sock_send_to(
(int32_t)fd, (int32_t)si_data, (int32_t)si_data_len, (int32_t)si_flags,
(uint32_t)dest_addr, (uint32_t)so_data_len);
}
/**
* Receives data from a socket
* Note: This is similar to `recvfrom` in POSIX
*/
int32_t
__imported_wasi_snapshot_preview1_sock_recv_from(int32_t arg0, int32_t arg1,
int32_t arg2, int32_t arg3,
int32_t arg4, int32_t arg5)
__attribute__((__import_module__("wasi_snapshot_preview1"),
__import_name__("sock_recv_from")));
static inline __wasi_errno_t
__wasi_sock_recv_from(__wasi_fd_t fd, __wasi_ciovec_t *ri_data,
uint32_t ri_data_len, __wasi_riflags_t ri_flags,
__wasi_addr_t *src_addr, uint32_t *ro_data_len)
{
return (__wasi_errno_t)__imported_wasi_snapshot_preview1_sock_recv_from(
(int32_t)fd, (int32_t)ri_data, (int32_t)ri_data_len, (int32_t)ri_flags,
(uint32_t)src_addr, (uint32_t)ro_data_len);
}
/**
* Close a socket (this is an alias for `fd_close`)
* Note: This is similar to `close` in POSIX.