diff options
Diffstat (limited to 'slirp/src/misc.c')
| -rw-r--r-- | slirp/src/misc.c | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/slirp/src/misc.c b/slirp/src/misc.c deleted file mode 100644 index 7c5db0e0aa..0000000000 --- a/slirp/src/misc.c +++ /dev/null @@ -1,321 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause */ -/* - * Copyright (c) 1995 Danny Gasparovski. - */ - -#include "slirp.h" - -inline void -insque(void *a, void *b) -{ - register struct quehead *element = (struct quehead *) a; - register struct quehead *head = (struct quehead *) b; - element->qh_link = head->qh_link; - head->qh_link = (struct quehead *)element; - element->qh_rlink = (struct quehead *)head; - ((struct quehead *)(element->qh_link))->qh_rlink - = (struct quehead *)element; -} - -inline void -remque(void *a) -{ - register struct quehead *element = (struct quehead *) a; - ((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink; - ((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link; - element->qh_rlink = NULL; -} - -/* TODO: IPv6 */ -struct gfwd_list * -add_guestfwd(struct gfwd_list **ex_ptr, - SlirpWriteCb write_cb, void *opaque, - struct in_addr addr, int port) -{ - struct gfwd_list *f = g_new0(struct gfwd_list, 1); - - f->write_cb = write_cb; - f->opaque = opaque; - f->ex_fport = port; - f->ex_addr = addr; - f->ex_next = *ex_ptr; - *ex_ptr = f; - - return f; -} - -struct gfwd_list * -add_exec(struct gfwd_list **ex_ptr, const char *cmdline, - struct in_addr addr, int port) -{ - struct gfwd_list *f = add_guestfwd(ex_ptr, NULL, NULL, addr, port); - - f->ex_exec = g_strdup(cmdline); - - return f; -} - -static int -slirp_socketpair_with_oob(int sv[2]) -{ - struct sockaddr_in addr = { - .sin_family = AF_INET, - .sin_port = 0, - .sin_addr.s_addr = INADDR_ANY, - }; - socklen_t addrlen = sizeof(addr); - int ret, s; - - sv[1] = -1; - s = slirp_socket(AF_INET, SOCK_STREAM, 0); - if (s < 0 || bind(s, (struct sockaddr *)&addr, addrlen) < 0 || - listen(s, 1) < 0 || - getsockname(s, (struct sockaddr *)&addr, &addrlen) < 0) { - goto err; - } - - sv[1] = slirp_socket(AF_INET, SOCK_STREAM, 0); - if (sv[1] < 0) { - goto err; - } - /* - * This connect won't block because we've already listen()ed on - * the server end (even though we won't accept() the connection - * until later on). - */ - do { - ret = connect(sv[1], (struct sockaddr *)&addr, addrlen); - } while (ret < 0 && errno == EINTR); - if (ret < 0) { - goto err; - } - - do { - sv[0] = accept(s, (struct sockaddr *)&addr, &addrlen); - } while (sv[0] < 0 && errno == EINTR); - if (sv[0] < 0) { - goto err; - } - - closesocket(s); - return 0; - -err: - g_critical("slirp_socketpair(): %s", strerror(errno)); - if (s >= 0) { - closesocket(s); - } - if (sv[1] >= 0) { - closesocket(sv[1]); - } - return -1; -} - -static void -fork_exec_child_setup(gpointer data) -{ -#ifndef _WIN32 - setsid(); -#endif -} - -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wdeprecated-declarations" - -#if !GLIB_CHECK_VERSION(2, 58, 0) -typedef struct SlirpGSpawnFds { - GSpawnChildSetupFunc child_setup; - gpointer user_data; - gint stdin_fd; - gint stdout_fd; - gint stderr_fd; -} SlirpGSpawnFds; - -static inline void -slirp_gspawn_fds_setup(gpointer user_data) -{ - SlirpGSpawnFds *q = (SlirpGSpawnFds *)user_data; - - dup2(q->stdin_fd, 0); - dup2(q->stdout_fd, 1); - dup2(q->stderr_fd, 2); - q->child_setup(q->user_data); -} -#endif - -static inline gboolean -g_spawn_async_with_fds_slirp(const gchar *working_directory, - gchar **argv, - gchar **envp, - GSpawnFlags flags, - GSpawnChildSetupFunc child_setup, - gpointer user_data, - GPid *child_pid, - gint stdin_fd, - gint stdout_fd, - gint stderr_fd, - GError **error) -{ -#if GLIB_CHECK_VERSION(2, 58, 0) - return g_spawn_async_with_fds(working_directory, argv, envp, flags, - child_setup, user_data, - child_pid, stdin_fd, stdout_fd, stderr_fd, - error); -#else - SlirpGSpawnFds setup = { - .child_setup = child_setup, - .user_data = user_data, - .stdin_fd = stdin_fd, - .stdout_fd = stdout_fd, - .stderr_fd = stderr_fd, - }; - - return g_spawn_async(working_directory, argv, envp, flags, - slirp_gspawn_fds_setup, &setup, - child_pid, error); -#endif -} - -#define g_spawn_async_with_fds(wd, argv, env, f, c, d, p, ifd, ofd, efd, err) \ - g_spawn_async_with_fds_slirp(wd, argv, env, f, c, d, p, ifd, ofd, efd, err) - -#pragma GCC diagnostic pop - -int -fork_exec(struct socket *so, const char *ex) -{ - GError *err = NULL; - char **argv; - int opt, sp[2]; - - DEBUG_CALL("fork_exec"); - DEBUG_ARG("so = %p", so); - DEBUG_ARG("ex = %p", ex); - - if (slirp_socketpair_with_oob(sp) < 0) { - return 0; - } - - argv = g_strsplit(ex, " ", -1); - g_spawn_async_with_fds(NULL /* cwd */, - argv, - NULL /* env */, - G_SPAWN_SEARCH_PATH, - fork_exec_child_setup, NULL /* data */, - NULL /* child_pid */, - sp[1], sp[1], sp[1], - &err); - g_strfreev(argv); - - if (err) { - g_critical("fork_exec: %s", err->message); - g_error_free(err); - closesocket(sp[0]); - closesocket(sp[1]); - return 0; - } - - so->s = sp[0]; - closesocket(sp[1]); - slirp_socket_set_fast_reuse(so->s); - opt = 1; - setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int)); - slirp_set_nonblock(so->s); - so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque); - return 1; -} - -char *slirp_connection_info(Slirp *slirp) -{ - GString *str = g_string_new(NULL); - const char * const tcpstates[] = { - [TCPS_CLOSED] = "CLOSED", - [TCPS_LISTEN] = "LISTEN", - [TCPS_SYN_SENT] = "SYN_SENT", - [TCPS_SYN_RECEIVED] = "SYN_RCVD", - [TCPS_ESTABLISHED] = "ESTABLISHED", - [TCPS_CLOSE_WAIT] = "CLOSE_WAIT", - [TCPS_FIN_WAIT_1] = "FIN_WAIT_1", - [TCPS_CLOSING] = "CLOSING", - [TCPS_LAST_ACK] = "LAST_ACK", - [TCPS_FIN_WAIT_2] = "FIN_WAIT_2", - [TCPS_TIME_WAIT] = "TIME_WAIT", - }; - struct in_addr dst_addr; - struct sockaddr_in src; - socklen_t src_len; - uint16_t dst_port; - struct socket *so; - const char *state; - char buf[20]; - - g_string_append_printf(str, - " Protocol[State] FD Source Address Port " - "Dest. Address Port RecvQ SendQ\n"); - - /* TODO: IPv6 */ - - for (so = slirp->tcb.so_next; so != &slirp->tcb; so = so->so_next) { - if (so->so_state & SS_HOSTFWD) { - state = "HOST_FORWARD"; - } else if (so->so_tcpcb) { - state = tcpstates[so->so_tcpcb->t_state]; - } else { - state = "NONE"; - } - if (so->so_state & (SS_HOSTFWD | SS_INCOMING)) { - src_len = sizeof(src); - getsockname(so->s, (struct sockaddr *)&src, &src_len); - dst_addr = so->so_laddr; - dst_port = so->so_lport; - } else { - src.sin_addr = so->so_laddr; - src.sin_port = so->so_lport; - dst_addr = so->so_faddr; - dst_port = so->so_fport; - } - snprintf(buf, sizeof(buf), " TCP[%s]", state); - g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s, - src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*", - ntohs(src.sin_port)); - g_string_append_printf(str, "%15s %5d %5d %5d\n", - inet_ntoa(dst_addr), ntohs(dst_port), - so->so_rcv.sb_cc, so->so_snd.sb_cc); - } - - for (so = slirp->udb.so_next; so != &slirp->udb; so = so->so_next) { - if (so->so_state & SS_HOSTFWD) { - snprintf(buf, sizeof(buf), " UDP[HOST_FORWARD]"); - src_len = sizeof(src); - getsockname(so->s, (struct sockaddr *)&src, &src_len); - dst_addr = so->so_laddr; - dst_port = so->so_lport; - } else { - snprintf(buf, sizeof(buf), " UDP[%d sec]", - (so->so_expire - curtime) / 1000); - src.sin_addr = so->so_laddr; - src.sin_port = so->so_lport; - dst_addr = so->so_faddr; - dst_port = so->so_fport; - } - g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s, - src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*", - ntohs(src.sin_port)); - g_string_append_printf(str, "%15s %5d %5d %5d\n", - inet_ntoa(dst_addr), ntohs(dst_port), - so->so_rcv.sb_cc, so->so_snd.sb_cc); - } - - for (so = slirp->icmp.so_next; so != &slirp->icmp; so = so->so_next) { - snprintf(buf, sizeof(buf), " ICMP[%d sec]", - (so->so_expire - curtime) / 1000); - src.sin_addr = so->so_laddr; - dst_addr = so->so_faddr; - g_string_append_printf(str, "%-19s %3d %15s - ", buf, so->s, - src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*"); - g_string_append_printf(str, "%15s - %5d %5d\n", inet_ntoa(dst_addr), - so->so_rcv.sb_cc, so->so_snd.sb_cc); - } - - return g_string_free(str, FALSE); -} |