Display more information on DB version crash

https://fedorahosted.org/sssd/ticket/1589

Added check for determining, whether database version is higher or
lower than expected. To distinguish it from other errors it uses
following retun values (further used for appropriate error message):
EMEDIUMTYPE for lower version than expected
EUCLEAN for higher version than expected

When SSSD or one of it's tools fails on DB version mismatch, new error
message is showed suggesting how to proceed.

3 files changed, 4 insertions, 0 deletions

diff --git a/src/tools/sss_cache.c b/src/tools/sss_cache.c
index 267b8ac45..dfc58a7cd 100644
--- a/src/tools/sss_cache.c
+++ b/src/tools/sss_cache.c
@@ -339,6 +339,7 @@ errno_t init_domains(struct cache_tool_ctx *ctx, const char *domain)
         ret = sysdb_init_domain_and_sysdb(ctx, ctx->confdb, domain, DB_PATH,
                                           &ctx->domains, &db_ctx);
         if (ret != EOK) {
+            SYSDB_VERSION_ERROR(ret);
             DEBUG(1, ("Could not initialize connection to the sysdb\n"));
             goto fail;
         }
@@ -350,6 +351,7 @@ errno_t init_domains(struct cache_tool_ctx *ctx, const char *domain)
         }
     } else {
         ret = sysdb_init(ctx, ctx->confdb, NULL, false, &ctx->sysdb_list);
+        SYSDB_VERSION_ERROR(ret);
         if (ret != EOK) {
             DEBUG(1, ("Could not initialize connection to the sysdb\n"));
             goto fail;
diff --git a/src/tools/sss_seed.c b/src/tools/sss_seed.c
index 18d0b9d08..8eaf95936 100644
--- a/src/tools/sss_seed.c
+++ b/src/tools/sss_seed.c
@@ -631,6 +631,7 @@ static int seed_init_db(TALLOC_CTX *mem_ctx,
     ret = sysdb_init_domain_and_sysdb(tmp_ctx, confdb, domain_name,
                                       DB_PATH, &domain, &sysdb);
     if (ret != EOK) {
+        SYSDB_VERSION_ERROR(ret);
         DEBUG(SSSDBG_CRIT_FAILURE,
               ("Could not initialize connection to domain '%s' in sysdb.%s\n",
                domain_name, ret == ENOENT ? " Domain not found." : ""));
diff --git a/src/tools/tools_util.c b/src/tools/tools_util.c
index 99b79f171..73e94136c 100644
--- a/src/tools/tools_util.c
+++ b/src/tools/tools_util.c
@@ -57,6 +57,7 @@ static int setup_db(struct tools_ctx *ctx)
     ret = sysdb_init_domain_and_sysdb(ctx, ctx->confdb, "local", DB_PATH,
                                       &ctx->local, &ctx->sysdb);
     if (ret != EOK) {
+        SYSDB_VERSION_ERROR(ret);
         DEBUG(1, ("Could not initialize connection to the sysdb\n"));
         return ret;
     }