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[WIP] Add manual reload functionality to mrouted for hotplugged network interfaces #63

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[WIP] Add manual reload functionality to mrouted for hotplugged network interfaces #63

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a864d7e
Add reload_iface command to mroutectl
cguimaraes Oct 25, 2024
07914a6
Properly reload interfaces as the given feedback
cguimaraes Oct 26, 2024
f4ced2f
Install vif if new interfaces are reloaded
cguimaraes Oct 30, 2024
c5e6b37
Free after cleanup
cguimaraes Nov 3, 2024
a1c7a2c
Improve add and remove
cguimaraes Nov 3, 2024
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2 changes: 2 additions & 0 deletions src/defs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,7 @@ extern int mrt_table_id;
extern int debug_list(int, char *, size_t);
extern int debug_parse(char *);
extern void restart(void);
extern void reload_iface(void);
extern char * scaletime(time_t);
extern int register_input_handler(int, ihfunc_t);
extern void deregister_input_handler(int);
Expand Down Expand Up @@ -452,6 +453,7 @@ extern int pidfile(const char *basename);
#define IPC_SHOW_MFC_CMD 21
#define IPC_SHOW_NEIGH_CMD 22
#define IPC_SHOW_ROUTES_CMD 23
#define IPC_RELOAD_IFACE_CMD 30
#define IPC_SHOW_COMPAT_CMD 250
#define IPC_EOF_CMD 254
#define IPC_ERR_CMD 255
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4 changes: 4 additions & 0 deletions src/ipc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -618,6 +618,10 @@ static void ipc_handle(int sd)
restart();
break;

case IPC_RELOAD_IFACE_CMD:
reload_iface();
break;

case IPC_DEBUG_CMD:
ipc_generic(client, &msg, do_debug, &msg);
break;
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45 changes: 45 additions & 0 deletions src/main.c
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Expand Up @@ -803,6 +803,51 @@ void restart(void)
timer_set(TIMER_INTERVAL, timer, NULL);
}

/*
* Reload ifaces
*/
void reload_iface(void)
{
FILE *fp = NULL;
char *s = NULL;

s = strdup (" reload");
if (s == NULL)
logit(LOG_ERR, 0, "out of memory");

/*
* reset all the entries, except routes and prunes
*/
timer_stop_all();
stop_all_vifs();
k_stop_dvmrp();
igmp_exit();
#ifndef IOCTL_OK_ON_RAW_SOCKET
close(udp_socket);
#endif
did_final_init = 0;

/*
* start processing again
*/
init_genid();

igmp_init();
init_routes();
init_ktable();
init_vifs();
/*XXX Schedule final_init() as main does? */
final_init(s);

/* Touch PID file to acknowledge SIGHUP */
pidfile(pid_file);

/* schedule timer interrupts */
timer_set(1, fasttimer, NULL);
timer_set(TIMER_INTERVAL, timer, NULL);
}


#define SCALETIMEBUFLEN 27
char *scaletime(time_t t)
{
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