71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
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static void recv_config_state(int fd, struct sshbuf *conf) {
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recv_rexec_state(fd, conf);
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}
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static void recv_rexec_state(int fd, struct sshbuf *conf) {
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}
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static void send_config_state(int fd, struct sshbuf *conf) {
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send_rexec_state(fd, conf);
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}
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static void send_rexec_state(int fd, struct sshbuf *conf) {
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struct sshbuf *m = NULL, *inc = NULL, *hostkeys = NULL;
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struct include_item *item = NULL;
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int r, sz;
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debug3_f("entering fd = %d config len %zu", fd,
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sshbuf_len(conf));
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if ((m = sshbuf_new()) == NULL ||
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(inc = sshbuf_new()) == NULL)
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fatal_f("sshbuf_new failed");
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/* pack includes into a string */
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TAILQ_FOREACH(item, &includes, entry) {
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if ((r = sshbuf_put_cstring(inc, item->selector)) != 0 ||
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(r = sshbuf_put_cstring(inc, item->filename)) != 0 ||
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(r = sshbuf_put_stringb(inc, item->contents)) != 0)
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fatal_fr(r, "compose includes");
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}
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hostkeys = pack_hostkeys();
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/*
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* Protocol from reexec master to child:
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* string configuration
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* uint64 timing_secret
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* string host_keys[] {
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* string private_key
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* string public_key
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* string certificate
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* }
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* string included_files[] {
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* string selector
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* string filename
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* string contents
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* }
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*/
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if ((r = sshbuf_put_stringb(m, conf)) != 0 ||
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(r = sshbuf_put_u64(m, options.timing_secret)) != 0 ||
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(r = sshbuf_put_stringb(m, hostkeys)) != 0 ||
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(r = sshbuf_put_stringb(m, inc)) != 0)
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fatal_fr(r, "compose config");
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/* We need to fit the entire message inside the socket send buffer */
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sz = ROUNDUP(sshbuf_len(m) + 5, 16*1024);
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if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sz, sizeof sz) == -1)
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fatal_f("setsockopt SO_SNDBUF: %s", strerror(errno));
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if (ssh_msg_send(fd, 0, m) == -1)
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error_f("ssh_msg_send failed");
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sshbuf_free(m);
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sshbuf_free(inc);
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sshbuf_free(hostkeys);
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debug3_f("done");
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}
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