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defect 839

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The timer interval can be set to less then the platform timing interval.  This
could result in negative timer values configured by the user which confuse
the totem protocol.



git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@808 fd59a12c-fef9-0310-b244-a6a79926bd2f
This commit is contained in:
Steven Dake 2005-08-29 19:55:34 +00:00
parent 21199e23cc
commit 319f0813cb
1 changed files with 87 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

103
exec/totemconfig.c
View File

@ -63,6 +63,7 @@
#define DOWNCHECK_TIMEOUT 1000
#define FAIL_TO_RECV_CONST 10
#define SEQNO_UNCHANGED_CONST 3000
#define MINIMUM_TIMEOUT (1000/HZ)*3
static char error_string_response[512];
@ -76,26 +77,47 @@ strstr_rs (const char *haystack, const char *needle)
{
char *end_address;
char *new_needle;
char *token = needle + strlen (needle) - 1; /* last char is always the token */
new_needle = (char *)strdup (needle);
new_needle[strlen(new_needle) - 1] = '\0';
new_needle[strlen(new_needle) - 1] = '\0'; /* remove token */
end_address = strstr (haystack, new_needle);
if (end_address) {
end_address += strlen (new_needle);
end_address = strstr (end_address, needle + strlen (new_needle));
}
if (end_address) {
end_address += 1; /* skip past { or = */
do {
if (*end_address == '\t' || *end_address == ' ') {
end_address++;
} else {
break;
}
} while (*end_address != '\0');
if (end_address == 0) {
goto not_found;
}
end_address += strlen (new_needle);
/*
* Parse all tabs and spaces until token is found
* if other character found besides token, its not a match
*/
do {
if (*end_address == '\t' || *end_address == ' ') {
end_address++;
} else {
break;
}
} while (*end_address != '\0' && *end_address != token[0]);
if (*end_address != token[0]) {
end_address = 0;
goto not_found;
}
end_address++; /* skip past token */
do {
if (*end_address == '\t' || *end_address == ' ') {
end_address++;
} else {
break;
}
} while (*end_address != '\0');
not_found:
free (new_needle);
return (end_address);
}
@ -270,7 +292,8 @@ int totem_config_validate (
struct totem_config *totem_config,
char **error_string)
{
char *error_reason = error_string_response;
static char local_error_reason[512];
char *error_reason = local_error_reason;
/*
* Some error checking of parsed data to make sure its valid
@ -321,6 +344,13 @@ int totem_config_validate (
(1000/HZ));
}
}
if (totem_config->token_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The token timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->token_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->token_retransmit_timeout == 0) {
totem_config->token_retransmit_timeout =
(int)(totem_config->token_timeout /
@ -331,22 +361,62 @@ int totem_config_validate (
(int)(totem_config->token_retransmit_timeout * 0.8 -
(1000/HZ));
}
if (totem_config->token_retransmit_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The token retransmit timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->token_retransmit_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->token_hold_timeout == 0) {
totem_config->token_hold_timeout = TOKEN_HOLD_TIMEOUT;
}
if (totem_config->token_hold_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The token hold timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->token_hold_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->join_timeout == 0) {
totem_config->join_timeout = JOIN_TIMEOUT;
}
if (totem_config->join_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The join timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->join_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->consensus_timeout == 0) {
totem_config->consensus_timeout = CONSENSUS_TIMEOUT;
}
if (totem_config->consensus_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The consensus timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->consensus_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->merge_timeout == 0) {
totem_config->merge_timeout = MERGE_TIMEOUT;
}
if (totem_config->merge_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The merge timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->merge_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->downcheck_timeout == 0) {
totem_config->downcheck_timeout = DOWNCHECK_TIMEOUT;
}
if (totem_config->downcheck_timeout < MINIMUM_TIMEOUT) {
sprintf (local_error_reason, "The downcheck timeout parameter (%d ms) may not be less then (%d ms).",
totem_config->downcheck_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->fail_to_recv_const == 0) {
totem_config->fail_to_recv_const = FAIL_TO_RECV_CONST;
}
@ -366,11 +436,12 @@ int totem_config_validate (
error_reason = "This net_mtu parameter is greater then the maximum frame size";
goto parse_error;
}
return (0);
parse_error:
sprintf (error_string_response,
"parse error in /etc/ais/openais.conf: %s.\n", error_reason);
"parse error in /etc/ais/openais.conf: %s\n", error_reason);
*error_string = error_string_response;
return (-1);
}