int run_chassis_tbs(struct katcp_dispatch *d, struct katcp_arb *a, unsigned int mode)
{
struct input_event event;
int rr, fd;
fd = fileno_arb_katcp(d, a);
if(mode & KATCP_ARB_READ){
rr = read(fd, &event, sizeof(struct input_event));
if(rr == sizeof(struct input_event)){
log_message_katcp(d, KATCP_LEVEL_TRACE, NULL, "input event type=%d, code=%d, value=%d", event.type, event.code, event.value);
if(event.type == EV_KEY && (event.value > 0)){
switch(event.code){
case KEY_POWER :
case KEY_SYSRQ :
log_message_katcp(d, KATCP_LEVEL_WARN, NULL, "power button pressed, shutting down");
terminate_katcp(d, KATCP_EXIT_HALT);
break;
}
}
}
}
return 0;
}
int write_event_tbs(struct katcp_dispatch *d, struct katcp_arb *a, int type, int code, int value)
{
int fd, result;
struct input_event event;
fd = fileno_arb_katcp(d, a);
if(fd < 0){
log_message_katcp(d, KATCP_LEVEL_ERROR, NULL, "no valid file descriptor as event target");
return -1;
}
event.type = type;
event.code = code;
event.value = value;
result = write(fd, &event, sizeof(struct input_event));
if(result == sizeof(struct input_event)){
return 0;
}
if(result < 0){
log_message_katcp(d, KATCP_LEVEL_ERROR, NULL, "event write failed: %s", strerror(errno));
} else {
log_message_katcp(d, KATCP_LEVEL_ERROR, NULL, "logic problem, short event write");
}
return -1;
}
int accept_flat_katcp(struct katcp_dispatch *d, struct katcp_arb *a, unsigned int mode)
{
#define LABEL_BUFFER 32
int fd, nfd;
unsigned int len;
struct sockaddr_in sa;
struct katcp_flat *f;
struct katcp_listener *kl;
char label[LABEL_BUFFER];
long opts;
int result;
result = 0;
if(mode & KATCP_ARB_READ){
fd = fileno_arb_katcp(d, a);
len = sizeof(struct sockaddr_in);
nfd = accept(fd, (struct sockaddr *) &sa, &len);
if(nfd < 0){
log_message_katcp(d, KATCP_LEVEL_TRACE, NULL, "accept on %s failed: %s", name_arb_katcp(d, a), strerror(errno));
return 0;
}
kl = data_arb_katcp(d, a);
sane_listener_katcl(kl);
if(kl->l_group == NULL){
log_message_katcp(d, KATCP_LEVEL_ERROR, NULL, "group needed for accept");
close(fd);
return 0;
}
opts = fcntl(nfd, F_GETFL, NULL);
if(opts >= 0){
opts = fcntl(nfd, F_SETFL, opts | O_NONBLOCK);
}
fcntl(nfd, F_SETFD, FD_CLOEXEC);
snprintf(label, LABEL_BUFFER, "%s:%d", inet_ntoa(sa.sin_addr), ntohs(sa.sin_port));
label[LABEL_BUFFER - 1] = '\0';
log_message_katcp(d, KATCP_LEVEL_INFO, NULL, "accepted new connection from %s via %s", label, name_arb_katcp(d, a));
f = create_flat_katcp(d, nfd, KATCP_FLAT_TOCLIENT, label, kl->l_group);
if(f == NULL){
close(nfd);
}
}
if(mode & KATCP_ARB_STOP){
kl = data_arb_katcp(d, a);
sane_listener_katcl(kl);
release_listener_katcp(d, kl);
}
if(mode & KATCP_ARB_WRITE){
log_message_katcp(d, KATCP_LEVEL_FATAL, NULL, "listener callback called in mode 0x%x", mode);
result = (-1);
}
return result;
#undef LABEL_BUFFER
}
