Add error reporting to the remaining config handlers. If the value is
invalid, do not change the existing config option's value. Also print
an error whenever 0 is returned for an invalid value. When the handler
returns 1, config processing already fails with an error message.

Signed-off-by: Benjamin Marzinski <bmarz...@redhat.com>
Reviewed-by: Martin Wilck <mwi...@suse.com>
---
 libmultipath/dict.c | 73 +++++++++++++++++++++++++++++++--------------
 1 file changed, 51 insertions(+), 22 deletions(-)

diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 68647061..c534d703 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -199,8 +199,11 @@ set_yes_no(vector strvec, void *ptr, const char *file, int 
line_nr)
 
        if (strcmp(buff, "yes") == 0 || strcmp(buff, "1") == 0)
                *int_ptr = YN_YES;
-       else
+       else if (strcmp(buff, "no") == 0 || strcmp(buff, "0") == 0)
                *int_ptr = YN_NO;
+       else
+               condlog(1, "%s line %d, invalid value for %s: \"%s\"",
+                       file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
 
        FREE(buff);
        return 0;
@@ -221,7 +224,8 @@ set_yes_no_undef(vector strvec, void *ptr, const char 
*file, int line_nr)
        else if (strcmp(buff, "yes") == 0 || strcmp(buff, "1") == 0)
                *int_ptr = YNU_YES;
        else
-               *int_ptr = YNU_UNDEF;
+               condlog(1, "%s line %d, invalid value for %s: \"%s\"",
+                       file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
 
        FREE(buff);
        return 0;
@@ -480,9 +484,6 @@ def_find_multipaths_handler(struct config *conf, vector 
strvec,
        char *buff;
        int i;
 
-       if (set_yes_no_undef(strvec, &conf->find_multipaths, file, line_nr) == 
0 && conf->find_multipaths != FIND_MULTIPATHS_UNDEF)
-               return 0;
-
        buff = set_value(strvec);
        if (!buff)
                return 1;
@@ -495,9 +496,14 @@ def_find_multipaths_handler(struct config *conf, vector 
strvec,
                }
        }
 
-       if (conf->find_multipaths == YNU_UNDEF) {
-               condlog(0, "illegal value for find_multipaths: %s", buff);
-               conf->find_multipaths = DEFAULT_FIND_MULTIPATHS;
+       if (i >= __FIND_MULTIPATHS_LAST) {
+               if (strcmp(buff, "no") == 0 || strcmp(buff, "0") == 0)
+                       conf->find_multipaths = FIND_MULTIPATHS_OFF;
+               else if (strcmp(buff, "yes") == 0 || strcmp(buff, "1") == 0)
+                       conf->find_multipaths = FIND_MULTIPATHS_ON;
+               else
+                       condlog(1, "%s line %d, invalid value for 
find_multipaths: \"%s\"",
+                               file, line_nr, buff);
        }
 
        FREE(buff);
@@ -546,8 +552,10 @@ static int uid_attrs_handler(struct config *conf, vector 
strvec,
        if (!val)
                return 1;
        if (parse_uid_attrs(val, conf))
-               condlog(1, "error parsing uid_attrs: \"%s\"", val);
-       condlog(3, "parsed %d uid_attrs", VECTOR_SIZE(&conf->uid_attrs));
+               condlog(1, "%s line %d,error parsing uid_attrs: \"%s\"", file,
+                       line_nr, val);
+       else
+               condlog(4, "parsed %d uid_attrs", 
VECTOR_SIZE(&conf->uid_attrs));
        FREE(val);
        return 0;
 }
@@ -775,8 +783,11 @@ def_config_dir_handler(struct config *conf, vector strvec, 
const char *file,
                       int line_nr)
 {
        /* this is only valid in the main config file */
-       if (conf->processed_main_config)
+       if (conf->processed_main_config) {
+               condlog(1, "%s line %d, config_dir option only valid in 
/etc/multipath.conf",
+                       file, line_nr);
                return 0;
+       }
        condlog(2, "%s line %d, \"config_dir\" is deprecated and will be 
disabled in a future release",
                file, line_nr);
        return set_path(strvec, &conf->config_dir, file, line_nr);
@@ -836,7 +847,9 @@ set_mode(vector strvec, void *ptr, int *flags, const char 
*file, int line_nr)
        if (sscanf(buff, "%o", &mode) == 1 && mode <= 0777) {
                *flags |= (1 << ATTR_MODE);
                *mode_ptr = mode;
-       }
+       } else
+               condlog(1, "%s line %d, invalid value for mode: \"%s\"",
+                       file, line_nr, buff);
 
        FREE(buff);
        return 0;
@@ -861,7 +874,9 @@ set_uid(vector strvec, void *ptr, int *flags, const char 
*file, int line_nr)
        else if (sscanf(buff, "%u", &uid) == 1){
                *flags |= (1 << ATTR_UID);
                *uid_ptr = uid;
-       }
+       } else
+               condlog(1, "%s line %d, invalid value for uid: \"%s\"",
+                       file, line_nr, buff);
 
        FREE(buff);
        return 0;
@@ -887,7 +902,9 @@ set_gid(vector strvec, void *ptr, int *flags, const char 
*file, int line_nr)
        else if (sscanf(buff, "%u", &gid) == 1){
                *flags |= (1 << ATTR_GID);
                *gid_ptr = gid;
-       }
+       } else
+               condlog(1, "%s line %d, invalid value for gid: \"%s\"",
+                       file, line_nr, buff);
        FREE(buff);
        return 0;
 }
@@ -989,7 +1006,8 @@ set_dev_loss(vector strvec, void *ptr, const char *file, 
int line_nr)
        if (!strcmp(buff, "infinity"))
                *uint_ptr = MAX_DEV_LOSS_TMO;
        else if (sscanf(buff, "%u", uint_ptr) != 1)
-               *uint_ptr = DEV_LOSS_TMO_UNSET;
+               condlog(1, "%s line %d, invalid value for dev_loss_tmo: \"%s\"",
+                       file, line_nr, buff);
 
        FREE(buff);
        return 0;
@@ -1023,13 +1041,19 @@ static int
 set_pgpolicy(vector strvec, void *ptr, const char *file, int line_nr)
 {
        char * buff;
+       int policy;
        int *int_ptr = (int *)ptr;
 
        buff = set_value(strvec);
        if (!buff)
                return 1;
 
-       *int_ptr = get_pgpolicy_id(buff);
+       policy = get_pgpolicy_id(buff);
+       if (policy != IOPOLICY_UNDEF)
+               *int_ptr = policy;
+       else
+               condlog(1, "%s line %d, invalid value for path_grouping_policy: 
\"%s\"",
+                       file, line_nr, buff);
        FREE(buff);
 
        return 0;
@@ -1142,10 +1166,11 @@ set_rr_weight(vector strvec, void *ptr, const char 
*file, int line_nr)
 
        if (!strcmp(buff, "priorities"))
                *int_ptr = RR_WEIGHT_PRIO;
-
-       if (!strcmp(buff, "uniform"))
+       else if (!strcmp(buff, "uniform"))
                *int_ptr = RR_WEIGHT_NONE;
-
+       else
+               condlog(1, "%s line %d, invalid value for rr_weight: \"%s\"",
+                       file, line_nr, buff);
        FREE(buff);
 
        return 0;
@@ -1281,10 +1306,13 @@ def_log_checker_err_handler(struct config *conf, vector 
strvec,
        if (!buff)
                return 1;
 
-       if (strlen(buff) == 4 && !strcmp(buff, "once"))
+       if (!strcmp(buff, "once"))
                conf->log_checker_err = LOG_CHKR_ERR_ONCE;
-       else if (strlen(buff) == 6 && !strcmp(buff, "always"))
+       else if (!strcmp(buff, "always"))
                conf->log_checker_err = LOG_CHKR_ERR_ALWAYS;
+       else
+               condlog(1, "%s line %d, invalid value for log_checker_err: 
\"%s\"",
+                       file, line_nr, buff);
 
        free(buff);
        return 0;
@@ -1545,7 +1573,8 @@ hw_vpd_vendor_handler(struct config *conf, vector strvec, 
const char *file,
                        goto out;
                }
        }
-       hwe->vpd_vendor_id = 0;
+       condlog(1, "%s line %d, invalid value for vpd_vendor: \"%s\"",
+               file, line_nr, buff);
 out:
        FREE(buff);
        return 0;
-- 
2.17.2

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