diff options
Diffstat (limited to 'source4/lib/socket/socket_ipv4.c')
| -rw-r--r-- | source4/lib/socket/socket_ipv4.c | 186 |
1 files changed, 141 insertions, 45 deletions
diff --git a/source4/lib/socket/socket_ipv4.c b/source4/lib/socket/socket_ipv4.c index 7cf2b73e4e..d6b6bf7be4 100644 --- a/source4/lib/socket/socket_ipv4.c +++ b/source4/lib/socket/socket_ipv4.c @@ -24,9 +24,22 @@ #include "includes.h" #include "system/network.h" -static NTSTATUS ipv4_tcp_init(struct socket_context *sock) +static NTSTATUS ipv4_init(struct socket_context *sock) { - sock->fd = socket(PF_INET, SOCK_STREAM, 0); + int type; + + switch (sock->type) { + case SOCKET_TYPE_STREAM: + type = SOCK_STREAM; + break; + case SOCKET_TYPE_DGRAM: + type = SOCK_DGRAM; + break; + default: + return NT_STATUS_INVALID_PARAMETER; + } + + sock->fd = socket(PF_INET, type, 0); if (sock->fd == -1) { return map_nt_error_from_unix(errno); } @@ -34,12 +47,12 @@ static NTSTATUS ipv4_tcp_init(struct socket_context *sock) return NT_STATUS_OK; } -static void ipv4_tcp_close(struct socket_context *sock) +static void ipv4_close(struct socket_context *sock) { close(sock->fd); } -static NTSTATUS ipv4_tcp_connect_complete(struct socket_context *sock, uint32_t flags) +static NTSTATUS ipv4_connect_complete(struct socket_context *sock, uint32_t flags) { int error=0, ret; socklen_t len = sizeof(error); @@ -67,7 +80,7 @@ static NTSTATUS ipv4_tcp_connect_complete(struct socket_context *sock, uint32_t } -static NTSTATUS ipv4_tcp_connect(struct socket_context *sock, +static NTSTATUS ipv4_connect(struct socket_context *sock, const char *my_address, int my_port, const char *srv_address, int srv_port, uint32_t flags) @@ -110,13 +123,17 @@ static NTSTATUS ipv4_tcp_connect(struct socket_context *sock, return map_nt_error_from_unix(errno); } - return ipv4_tcp_connect_complete(sock, flags); + return ipv4_connect_complete(sock, flags); } -static NTSTATUS ipv4_tcp_listen(struct socket_context *sock, - const char *my_address, int port, - int queue_size, uint32_t flags) +/* + note that for simplicity of the API, socket_listen() is also + use for DGRAM sockets, but in reality only a bind() is done +*/ +static NTSTATUS ipv4_listen(struct socket_context *sock, + const char *my_address, int port, + int queue_size, uint32_t flags) { struct sockaddr_in my_addr; struct ipv4_addr ip_addr; @@ -137,9 +154,11 @@ static NTSTATUS ipv4_tcp_listen(struct socket_context *sock, return map_nt_error_from_unix(errno); } - ret = listen(sock->fd, queue_size); - if (ret == -1) { - return map_nt_error_from_unix(errno); + if (sock->type == SOCKET_TYPE_STREAM) { + ret = listen(sock->fd, queue_size); + if (ret == -1) { + return map_nt_error_from_unix(errno); + } } if (!(flags & SOCKET_FLAG_BLOCK)) { @@ -154,12 +173,16 @@ static NTSTATUS ipv4_tcp_listen(struct socket_context *sock, return NT_STATUS_OK; } -static NTSTATUS ipv4_tcp_accept(struct socket_context *sock, struct socket_context **new_sock) +static NTSTATUS ipv4_accept(struct socket_context *sock, struct socket_context **new_sock) { struct sockaddr_in cli_addr; socklen_t cli_addr_len = sizeof(cli_addr); int new_fd; + if (sock->type != SOCKET_TYPE_STREAM) { + return NT_STATUS_INVALID_PARAMETER; + } + new_fd = accept(sock->fd, (struct sockaddr *)&cli_addr, &cli_addr_len); if (new_fd == -1) { return map_nt_error_from_unix(errno); @@ -198,7 +221,7 @@ static NTSTATUS ipv4_tcp_accept(struct socket_context *sock, struct socket_conte return NT_STATUS_OK; } -static NTSTATUS ipv4_tcp_recv(struct socket_context *sock, void *buf, +static NTSTATUS ipv4_recv(struct socket_context *sock, void *buf, size_t wantlen, size_t *nread, uint32_t flags) { ssize_t gotlen; @@ -227,7 +250,49 @@ static NTSTATUS ipv4_tcp_recv(struct socket_context *sock, void *buf, return NT_STATUS_OK; } -static NTSTATUS ipv4_tcp_send(struct socket_context *sock, + +static NTSTATUS ipv4_recvfrom(struct socket_context *sock, void *buf, + size_t wantlen, size_t *nread, uint32_t flags, + const char **src_addr, int *src_port) +{ + ssize_t gotlen; + int flgs = 0; + struct sockaddr_in from_addr; + socklen_t from_len = sizeof(from_addr); + const char *addr; + + if (flags & SOCKET_FLAG_PEEK) { + flgs |= MSG_PEEK; + } + + if (flags & SOCKET_FLAG_BLOCK) { + flgs |= MSG_WAITALL; + } + + *nread = 0; + + gotlen = recvfrom(sock->fd, buf, wantlen, flgs, + (struct sockaddr *)&from_addr, &from_len); + if (gotlen == 0) { + return NT_STATUS_END_OF_FILE; + } else if (gotlen == -1) { + return map_nt_error_from_unix(errno); + } + + addr = inet_ntoa(from_addr.sin_addr); + if (addr == NULL) { + return NT_STATUS_INTERNAL_ERROR; + } + *src_addr = talloc_strdup(sock, addr); + NT_STATUS_HAVE_NO_MEMORY(*src_addr); + *src_port = ntohs(from_addr.sin_port); + + *nread = gotlen; + + return NT_STATUS_OK; +} + +static NTSTATUS ipv4_send(struct socket_context *sock, const DATA_BLOB *blob, size_t *sendlen, uint32_t flags) { ssize_t len; @@ -245,13 +310,44 @@ static NTSTATUS ipv4_tcp_send(struct socket_context *sock, return NT_STATUS_OK; } -static NTSTATUS ipv4_tcp_set_option(struct socket_context *sock, const char *option, const char *val) +static NTSTATUS ipv4_sendto(struct socket_context *sock, + const DATA_BLOB *blob, size_t *sendlen, uint32_t flags, + const char *dest_addr, int dest_port) +{ + ssize_t len; + int flgs = 0; + struct sockaddr_in srv_addr; + struct ipv4_addr addr; + + ZERO_STRUCT(srv_addr); +#ifdef HAVE_SOCK_SIN_LEN + srv_addr.sin_len = sizeof(srv_addr); +#endif + addr = interpret_addr2(dest_addr); + srv_addr.sin_addr.s_addr = addr.addr; + srv_addr.sin_port = htons(dest_port); + srv_addr.sin_family = PF_INET; + + *sendlen = 0; + + len = sendto(sock->fd, blob->data, blob->length, flgs, + (struct sockaddr *)&srv_addr, sizeof(srv_addr)); + if (len == -1) { + return map_nt_error_from_unix(errno); + } + + *sendlen = len; + + return NT_STATUS_OK; +} + +static NTSTATUS ipv4_set_option(struct socket_context *sock, const char *option, const char *val) { set_socket_options(sock->fd, option); return NT_STATUS_OK; } -static char *ipv4_tcp_get_peer_name(struct socket_context *sock, TALLOC_CTX *mem_ctx) +static char *ipv4_get_peer_name(struct socket_context *sock, TALLOC_CTX *mem_ctx) { struct sockaddr_in peer_addr; socklen_t len = sizeof(peer_addr); @@ -271,7 +367,7 @@ static char *ipv4_tcp_get_peer_name(struct socket_context *sock, TALLOC_CTX *mem return talloc_strdup(mem_ctx, he->h_name); } -static char *ipv4_tcp_get_peer_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx) +static char *ipv4_get_peer_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx) { struct sockaddr_in peer_addr; socklen_t len = sizeof(peer_addr); @@ -285,7 +381,7 @@ static char *ipv4_tcp_get_peer_addr(struct socket_context *sock, TALLOC_CTX *mem return talloc_strdup(mem_ctx, inet_ntoa(peer_addr.sin_addr)); } -static int ipv4_tcp_get_peer_port(struct socket_context *sock) +static int ipv4_get_peer_port(struct socket_context *sock) { struct sockaddr_in peer_addr; socklen_t len = sizeof(peer_addr); @@ -299,7 +395,7 @@ static int ipv4_tcp_get_peer_port(struct socket_context *sock) return ntohs(peer_addr.sin_port); } -static char *ipv4_tcp_get_my_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx) +static char *ipv4_get_my_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx) { struct sockaddr_in my_addr; socklen_t len = sizeof(my_addr); @@ -313,7 +409,7 @@ static char *ipv4_tcp_get_my_addr(struct socket_context *sock, TALLOC_CTX *mem_c return talloc_strdup(mem_ctx, inet_ntoa(my_addr.sin_addr)); } -static int ipv4_tcp_get_my_port(struct socket_context *sock) +static int ipv4_get_my_port(struct socket_context *sock) { struct sockaddr_in my_addr; socklen_t len = sizeof(my_addr); @@ -327,36 +423,36 @@ static int ipv4_tcp_get_my_port(struct socket_context *sock) return ntohs(my_addr.sin_port); } -static int ipv4_tcp_get_fd(struct socket_context *sock) +static int ipv4_get_fd(struct socket_context *sock) { return sock->fd; } -static const struct socket_ops ipv4_tcp_ops = { +static const struct socket_ops ipv4_ops = { .name = "ipv4", - .type = SOCKET_TYPE_STREAM, - - .fn_init = ipv4_tcp_init, - .fn_connect = ipv4_tcp_connect, - .fn_connect_complete = ipv4_tcp_connect_complete, - .fn_listen = ipv4_tcp_listen, - .fn_accept = ipv4_tcp_accept, - .fn_recv = ipv4_tcp_recv, - .fn_send = ipv4_tcp_send, - .fn_close = ipv4_tcp_close, - - .fn_set_option = ipv4_tcp_set_option, - - .fn_get_peer_name = ipv4_tcp_get_peer_name, - .fn_get_peer_addr = ipv4_tcp_get_peer_addr, - .fn_get_peer_port = ipv4_tcp_get_peer_port, - .fn_get_my_addr = ipv4_tcp_get_my_addr, - .fn_get_my_port = ipv4_tcp_get_my_port, - - .fn_get_fd = ipv4_tcp_get_fd + .fn_init = ipv4_init, + .fn_connect = ipv4_connect, + .fn_connect_complete = ipv4_connect_complete, + .fn_listen = ipv4_listen, + .fn_accept = ipv4_accept, + .fn_recv = ipv4_recv, + .fn_recvfrom = ipv4_recvfrom, + .fn_send = ipv4_send, + .fn_sendto = ipv4_sendto, + .fn_close = ipv4_close, + + .fn_set_option = ipv4_set_option, + + .fn_get_peer_name = ipv4_get_peer_name, + .fn_get_peer_addr = ipv4_get_peer_addr, + .fn_get_peer_port = ipv4_get_peer_port, + .fn_get_my_addr = ipv4_get_my_addr, + .fn_get_my_port = ipv4_get_my_port, + + .fn_get_fd = ipv4_get_fd }; -const struct socket_ops *socket_ipv4_ops(void) +const struct socket_ops *socket_ipv4_ops(enum socket_type type) { - return &ipv4_tcp_ops; + return &ipv4_ops; } |