autofs/SOURCES/autofs-5.1.6-sss-introduce-retries-calcuation-function.patch

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2021-04-16 06:10:06 +00:00
autofs-5.1.6 - sss introduce calculate_retry_count() function
From: Ian Kent <raven@themaw.net>
Add a function calculate_retry_count() to consolidate the calculation
of the retry count into a single location.
Signed-off-by: Ian Kent <raven@themaw.net>
---
CHANGELOG | 1 +
modules/lookup_sss.c | 62 ++++++++++++++++++++++++++++++--------------------
2 files changed, 38 insertions(+), 25 deletions(-)
diff --git a/CHANGELOG b/CHANGELOG
index 434e23d..4d83df2 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -102,6 +102,7 @@ xx/xx/2018 autofs-5.1.5
- improve sss setautomntent() error handling.
- refactor sss getautomntent().
- improve sss getautomntent() error handling.
+- sss introduce calculate_retry_count() function.
19/12/2017 autofs-5.1.4
- fix spec file url.
diff --git a/modules/lookup_sss.c b/modules/lookup_sss.c
index f366b48..29666a3 100644
--- a/modules/lookup_sss.c
+++ b/modules/lookup_sss.c
@@ -249,14 +249,9 @@ static unsigned int proto_version(struct lookup_context *ctxt)
return proto_version;
}
-static int setautomntent_wait(unsigned int logopt,
- struct lookup_context *ctxt, void **sss_ctxt)
+static unsigned int calculate_retry_count(struct lookup_context *ctxt)
{
- unsigned int retries;
- unsigned int retry = 0;
- int ret = 0;
-
- *sss_ctxt = NULL;
+ int retries;
retries = defaults_get_sss_master_map_wait();
@@ -264,14 +259,37 @@ static int setautomntent_wait(unsigned int logopt,
* configuration give it a sensible value since we
* want to wait for a host that's down in case it
* comes back up.
+ *
+ * Use the sss_master_map_wait configuration option
+ * for the time to wait when reading a dependednt map
+ * or performing a key lookup too.
*/
if (retries <= 0) {
/* Protocol version 0 cant't tell us about
- * a host being down, return not found.
+ * a host being down, return 0 for retries.
*/
if (proto_version(ctxt) == 0)
- return ENOENT;
- retries = 10;
+ retries = 0;
+ else
+ retries = 10;
+ }
+ return retries;
+}
+
+static int setautomntent_wait(unsigned int logopt,
+ struct lookup_context *ctxt, void **sss_ctxt)
+{
+ unsigned int retries;
+ unsigned int retry = 0;
+ int ret = 0;
+
+ *sss_ctxt = NULL;
+
+ retries = calculate_retry_count(ctxt);
+ if (retries == 0) {
+ if (proto_version(ctxt) == 0)
+ return EINVAL;
+ return ENOENT;
}
warn(logopt,
@@ -345,6 +363,9 @@ static int setautomntent(unsigned int logopt,
}
if (ret == ETIMEDOUT)
goto error;
+ /* sss proto version 0 and sss timeout not set */
+ if (ret == EINVAL)
+ goto free;
if (ret == ENOENT) {
err = NSS_STATUS_NOTFOUND;
goto free;
@@ -385,21 +406,11 @@ static int getautomntent_wait(unsigned int logopt,
unsigned int retry = 0;
int ret = 0;
- retries = defaults_get_sss_master_map_wait();
-
- /* Use the sss_master_map_wait configuration option
- * for the time to wait when reading a map too. If
- * it isn't set in the antofs configuration give it
- * a sensible value since we want to wait for a host
- * that's down in case it comes back up.
- */
- if (retries <= 0) {
- /* Protocol version 0 cant't tell us about
- * a host being down, return not found.
- */
+ retries = calculate_retry_count(ctxt);
+ if (retries == 0) {
if (proto_version(ctxt) == 0)
- return ENOENT;
- retries = 10;
+ return EINVAL;
+ return ENOENT;
}
warn(logopt,
@@ -483,7 +494,8 @@ static int getautomntent(unsigned int logopt,
}
if (ret == ETIMEDOUT)
goto error;
- if (ret == ENOENT) {
+ /* sss proto version 0 and sss timeout not set => EINVAL */
+ if (ret == ENOENT || ret == EINVAL) {
err = NSS_STATUS_NOTFOUND;
if (count)
err = NSS_STATUS_SUCCESS;