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author | Andrew Bartlett <abartlet@samba.org> | 2009-10-21 22:27:22 +1100 |
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committer | Andrew Bartlett <abartlet@samba.org> | 2009-10-21 22:43:57 +1100 |
commit | d7cf71d9b6cae19b2f9a215f910b4b6e1474291d (patch) | |
tree | 4c39f6331958215886bdd4981f9c752f76480301 /source4 | |
parent | 4209cf9860b528f2ac9da175feec8783a35950f9 (diff) | |
download | samba-d7cf71d9b6cae19b2f9a215f910b4b6e1474291d.tar.gz samba-d7cf71d9b6cae19b2f9a215f910b4b6e1474291d.tar.bz2 samba-d7cf71d9b6cae19b2f9a215f910b4b6e1474291d.zip |
s4:dsdb Allow loading of old-style partition records
This should make upgrades easier
Diffstat (limited to 'source4')
-rw-r--r-- | source4/dsdb/samdb/ldb_modules/partition_init.c | 55 |
1 files changed, 36 insertions, 19 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/partition_init.c b/source4/dsdb/samdb/ldb_modules/partition_init.c index 421169d371..c88d418783 100644 --- a/source4/dsdb/samdb/ldb_modules/partition_init.c +++ b/source4/dsdb/samdb/ldb_modules/partition_init.c @@ -181,7 +181,7 @@ static const char **find_modules_for_dn(struct partition_private_data *data, str static int new_partition_from_dn(struct ldb_context *ldb, struct partition_private_data *data, TALLOC_CTX *mem_ctx, - struct ldb_dn *dn, const char *casefold_dn, + struct ldb_dn *dn, const char *filename_base, struct dsdb_partition **partition) { const char *backend_url; struct dsdb_control_current_partition *ctrl; @@ -210,25 +210,25 @@ static int new_partition_from_dn(struct ldb_context *ldb, struct partition_priva const char *p; char *backend_path; char *base64_dn = NULL; - for (p = casefold_dn; *p; p++) { + for (p = filename_base; *p; p++) { /* We have such a strict check because I don't want shell metacharacters in the file name, nor ../ */ if (!(isalnum(*p) || *p == ' ' || *p == '=' || *p == ',')) { break; } } if (*p) { - casefold_dn = base64_dn = ldb_base64_encode(data, casefold_dn, strlen(casefold_dn)); + filename_base = base64_dn = ldb_base64_encode(data, filename_base, strlen(filename_base)); } backend_path = samdb_relative_path(ldb, *partition, - casefold_dn); + filename_base); if (base64_dn) { talloc_free(base64_dn); } if (!backend_path) { ldb_asprintf_errstring(ldb, - "partition_init: unable to determine an relative path for partition: %s", casefold_dn); + "partition_init: unable to determine an relative path for partition: %s", filename_base); talloc_free(*partition); return LDB_ERR_OPERATIONS_ERROR; } @@ -254,6 +254,11 @@ static int new_partition_from_dn(struct ldb_context *ldb, struct partition_priva modules = find_modules_for_dn(data, dn); + if (!modules) { + DEBUG(0, ("Unable to load partition modules for new DN %s, perhaps you need to reprovision? See partition-upgrade.txt for instructions\n", ldb_dn_get_linearized(dn))); + talloc_free(*partition); + return LDB_ERR_CONSTRAINT_VIOLATION; + } ret = ldb_load_modules_list(ldb, modules, backend_module, &(*partition)->module); if (ret != LDB_SUCCESS) { ldb_asprintf_errstring(ldb, @@ -385,6 +390,7 @@ int partition_reload_if_required(struct ldb_module *module, for (i=0; partition_attributes && i < partition_attributes->num_values; i++) { int j; bool new_partition = true; + const char *filename_base = NULL; DATA_BLOB dn_blob; struct ldb_dn *dn; struct dsdb_partition *partition; @@ -401,6 +407,26 @@ int partition_reload_if_required(struct ldb_module *module, dn_blob = partition_attributes->values[i]; + if (dn_blob.length > 4 && + (strncmp((const char *)&dn_blob.data[dn_blob.length-4], ".ldb", 4) == 0)) { + + /* Look for DN:filename.ldb */ + char *p = strchr((const char *)dn_blob.data, ':'); + if (!p) { + ldb_asprintf_errstring(ldb, + "partition_init: invalid DN in attempting to parse old-style partition record: %s", (const char *)dn_blob.data); + talloc_free(mem_ctx); + return LDB_ERR_CONSTRAINT_VIOLATION; + } + filename_base = p+1; + + /* Trim off the .ldb */ + dn_blob.data[dn_blob.length-4] = '\0'; + + /* Now trim off the filename */ + dn_blob.length = ((uint8_t *)p - dn_blob.data); + } + dn = ldb_dn_from_ldb_val(mem_ctx, ldb, &dn_blob); if (!dn) { ldb_asprintf_errstring(ldb, @@ -408,26 +434,17 @@ int partition_reload_if_required(struct ldb_module *module, talloc_free(mem_ctx); return LDB_ERR_CONSTRAINT_VIOLATION; } - - if (dn_blob.length > 4 && - (strncmp((const char *)&dn_blob.data[dn_blob.length-4], ".ldb", 4) == 0) && - (ldb_dn_compare_base(ldb_get_default_basedn(ldb), dn) != 0)) { - ldb_asprintf_errstring(ldb, - "partition_init: invalid DN in partition record: %s is not under %s. Perhaps an old " DSDB_PARTITION_DN " format?", - (const char *)dn_blob.data, - ldb_dn_get_linearized(ldb_get_default_basedn(ldb))); - DEBUG(0, ("Unable to load partitions, invalid DN %s found, perhaps you need to reprovision? See partition-upgrade.txt for instructions\n", - (const char *)dn_blob.data)); - talloc_free(mem_ctx); - return LDB_ERR_CONSTRAINT_VIOLATION; + + if (!filename_base) { + filename_base = ldb_dn_get_linearized(dn); } - + /* We call ldb_dn_get_linearized() because the DN in * partition_attributes is already casefolded * correctly. We don't want to mess that up as the * schema isn't loaded yet */ ret = new_partition_from_dn(ldb, data, data->partitions, dn, - ldb_dn_get_linearized(dn), + filename_base, &partition); if (ret != LDB_SUCCESS) { talloc_free(mem_ctx); |