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ircd: support restarting ssld processes

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Add REHASH SSLD (admins only) that starts new sslds and marks the
existing ones as inactive until all their clients disconnect.

Very useful whenever the SSL library has a vulnerability because
new connections can use a new version of the library without
disconnecting existing clients/servers.

Add STATS S (admins only) to list ssld processes, status, and client
count.
This commit is contained in:
Simon Arlott 2016-02-10 22:57:16 +00:00 • committed by William Pitcock
parent dea27a087c
commit eb1b303d56
6 changed files with 88 additions and 5 deletions
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22
modules/m_stats.c
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@ -49,6 +49,7 @@
#include "reject.h"
#include "whowas.h"
#include "irc_radixtree.h"
#include "sslproc.h"
static int m_stats (struct Client *, struct Client *, int, const char **);
@ -109,6 +110,7 @@ static void stats_operedup(struct Client *);
static void stats_ports(struct Client *);
static void stats_tresv(struct Client *);
static void stats_resv(struct Client *);
static void stats_ssld(struct Client *);
static void stats_usage(struct Client *);
static void stats_tstats(struct Client *);
static void stats_uptime(struct Client *);
@ -162,6 +164,8 @@ static struct StatsStruct stats_cmd_table[] = {
{'Q', stats_resv, 1, 0, },
{'r', stats_usage, 1, 0, },
{'R', stats_usage, 1, 0, },
{'s', stats_ssld, 1, 1, },
{'S', stats_ssld, 1, 1, },
{'t', stats_tstats, 1, 0, },
{'T', stats_tstats, 1, 0, },
{'u', stats_uptime, 0, 0, },
@ -884,6 +888,24 @@ stats_resv(struct Client *source_p)
}
}
static void
stats_ssld_foreach(void *data, pid_t pid, int cli_count, enum ssld_status status)
{
struct Client *source_p = data;
sendto_one_numeric(source_p, RPL_STATSDEBUG,
"S :%u %c %u",
pid,
status == SSLD_DEAD ? 'D' : (status == SSLD_SHUTDOWN ? 'S' : 'A'),
cli_count);
}
static void
stats_ssld(struct Client *source_p)
{
ssld_foreach_info(stats_ssld_foreach, source_p);
}
static void
stats_usage (struct Client *source_p)
{