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conf: don't load sourcedir during initstepslew and RTC init

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If the reload sources command was received in the chronyd start-up
sequence with initstepslew and/or RTC init (-s option), the sources
loaded from sourcedirs caused a crash due to failed assertion after
adding sources specified in the config.

Ignore the reload sources command until chronyd enters the normal
operation mode.

Fixes: 519796de37 ("conf: add sourcedirs directive")
This commit is contained in:
Miroslav Lichvar 2024-03-12 14:30:27 +01:00
parent 7fe98a83b8
commit f49be7f063
2 changed files with 36 additions and 1 deletions
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11
conf.c
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@ -298,6 +298,8 @@ static ARR_Instance ntp_sources;
static ARR_Instance ntp_source_dirs;
/* Array of uint32_t corresponding to ntp_sources (for sourcedirs reload) */
static ARR_Instance ntp_source_ids;
/* Flag indicating ntp_sources and ntp_source_ids are used for sourcedirs */
static int conf_ntp_sources_added = 0;
/* Array of RefclockParameters */
static ARR_Instance refclock_sources;
@ -1689,8 +1691,12 @@ reload_source_dirs(void)
NSR_Status s;
int d, pass;
/* Ignore reload command before adding configured sources */
if (!conf_ntp_sources_added)
return;
prev_size = ARR_GetSize(ntp_source_ids);
if (prev_size > 0 && ARR_GetSize(ntp_sources) != prev_size)
if (ARR_GetSize(ntp_sources) != prev_size)
assert(0);
/* Save the current sources and their configuration IDs */
@ -1859,7 +1865,10 @@ CNF_AddSources(void)
Free(source->params.name);
}
/* The arrays will be used for sourcedir (re)loading */
ARR_SetSize(ntp_sources, 0);
ARR_SetSize(ntp_source_ids, 0);
conf_ntp_sources_added = 1;
reload_source_dirs();
}

26
test/simulation/203-initreload Executable file
View file

@ -0,0 +1,26 @@
#!/usr/bin/env bash
. ./test.common
check_config_h 'FEAT_CMDMON 1' || test_skip
# Test fix "conf: don't load sourcedir during initstepslew and RTC init"
test_start "reload during initstepslew"
client_conf="initstepslew 5 192.168.123.1
sourcedir tmp"
client_server_conf="#"
chronyc_conf="reload sources"
chronyc_start=4
echo 'server 192.168.123.1' > tmp/sources.sources
run_test || test_fail
check_chronyd_exit || test_fail
check_source_selection || test_fail
check_sync || test_fail
check_log_messages "Added source 192\.168\.123\.1" 1 1 || test_fail
test_pass