diff options
author | Simo Sorce <ssorce@redhat.com> | 2008-05-01 18:03:57 -0400 |
---|---|---|
committer | Simo Sorce <ssorce@redhat.com> | 2008-05-15 12:59:28 -0400 |
commit | 10f0881dba00e181ef9f01799fd9d7337b26c60a (patch) | |
tree | 5fc42b494fd92d3cbb08ea74cfd9d165efc0cfc7 /ipa-server | |
parent | 2d608a83548005507381f406ac97607628c934ad (diff) | |
download | freeipa-10f0881dba00e181ef9f01799fd9d7337b26c60a.tar.gz freeipa-10f0881dba00e181ef9f01799fd9d7337b26c60a.tar.xz freeipa-10f0881dba00e181ef9f01799fd9d7337b26c60a.zip |
Implement checks to make sure we are not assigning a number that is in use.
Change config to support a maximum value so that ranges can be defined.
Add stubs to reach out and ask to swap in new ranges and notify that new
chuncks are needed/used.
Diffstat (limited to 'ipa-server')
-rw-r--r-- | ipa-server/ipa-slapi-plugins/dna/dna.c | 636 |
1 files changed, 455 insertions, 181 deletions
diff --git a/ipa-server/ipa-slapi-plugins/dna/dna.c b/ipa-server/ipa-slapi-plugins/dna/dna.c index 169edb82b..95d06262e 100644 --- a/ipa-server/ipa-slapi-plugins/dna/dna.c +++ b/ipa-server/ipa-slapi-plugins/dna/dna.c @@ -51,6 +51,7 @@ #include <stdio.h> #include <ctype.h> #include <string.h> +#include <errno.h> /*#include "portable.h"*/ #include "nspr.h" /*#include "slapi-private.h"*/ @@ -66,7 +67,7 @@ #endif #define DNA_PLUGIN_SUBSYSTEM "ipa-dna-plugin" -#define DNA_PLUGIN_VERSION 0x00010000 +#define DNA_PLUGIN_VERSION 0x00020000 /* temporary */ #define DNA_DN "cn=ipa-dna,cn=plugins,cn=config" @@ -77,16 +78,28 @@ /** * DNA config types */ -#define DNA_TYPE "dnaType" -#define DNA_PREFIX "dnaPrefix" -#define DNA_NEXTVAL "dnaNextValue" -#define DNA_INTERVAL "dnaInterval" -#define DNA_GENERATE "dnaMagicRegen" -#define DNA_FILTER "dnaFilter" -#define DNA_SCOPE "dnaScope" +#define DNA_TYPE "dnaType" +#define DNA_PREFIX "dnaPrefix" +#define DNA_NEXTVAL "dnaNextValue" +#define DNA_INTERVAL "dnaInterval" +#define DNA_GENERATE "dnaMagicRegen" +#define DNA_FILTER "dnaFilter" +#define DNA_SCOPE "dnaScope" -#define FEATURE_DESC "IPA Distributed Numeric Assignment" -#define PLUGIN_DESC "IPA Distributed Numeric Assignment plugin" +/* since v2 */ +#define DNA_MAXVAL "dnaMaxValue" +#define DNA_SHARED_CFG_DN "dnaSharedCfgDN" + +/* Shared Config */ +#define DNA_GLOBAL_RANGE "dnaGlobalRange" +#define DNA_RANGE "dnaRange" +#define DNA_MAX_RANGE_SIZE "dnaMaxRangeSize" +#define DNA_CHUNK_SIZE "dnaChunkSize" + + + +#define FEATURE_DESC "IPA Distributed Numeric Assignment" +#define PLUGIN_DESC "IPA Distributed Numeric Assignment plugin" static Slapi_PluginDesc pdesc = { FEATURE_DESC, "FreeIPA project", "FreeIPA/1.0", @@ -98,19 +111,21 @@ static Slapi_PluginDesc pdesc = { FEATURE_DESC, * linked list of config entries */ -struct _defs { +struct configEntry { PRCList list; char *dn; char *type; char *prefix; unsigned long nextval; unsigned long interval; - struct slapi_filter *filter; + unsigned long maxval; + char *filter; + struct slapi_filter *slapi_filter; char *generate; char *scope; -} dna_anchor; -typedef struct _defs configEntry; -static PRCList *config; +}; + +static PRCList *dna_global_config = NULL; static PRRWLock *g_dna_cache_lock; static void *_PluginID = NULL; @@ -140,7 +155,7 @@ static int dna_postop_init(Slapi_PBlock * pb); static int loadPluginConfig(); static int parseConfigEntry(Slapi_Entry * e); static void deleteConfig(); -static void freeConfigEntry(configEntry ** entry); +static void freeConfigEntry(struct configEntry ** entry); /** * @@ -149,8 +164,8 @@ static void freeConfigEntry(configEntry ** entry); */ static char *dna_get_dn(Slapi_PBlock * pb); static int dna_dn_is_config(char *dn); -static int dna_get_next_value(configEntry * config_entry, - char **next_value_ret); +static int dna_get_next_value(struct configEntry * config_entry, + char **next_value_ret); /** * @@ -166,7 +181,7 @@ static int dna_add_pre_op(Slapi_PBlock * pb); * debug functions - global, for the debugger */ void dnaDumpConfig(); -void dnaDumpConfigEntry(configEntry *); +void dnaDumpConfigEntry(struct configEntry *); /** * set the debug level @@ -325,7 +340,6 @@ static int dna_start(Slapi_PBlock * pb) slapi_log_error(SLAPI_LOG_TRACE, DNA_PLUGIN_SUBSYSTEM, "--> dna_start\n"); - config = &dna_anchor.list; g_dna_cache_lock = PR_NewRWLock(PR_RWLOCK_RANK_NONE, "dna"); g_new_value_lock = slapi_new_mutex(); @@ -336,13 +350,13 @@ static int dna_start(Slapi_PBlock * pb) return DNA_FAILURE; } - /** + /** * Get the plug-in target dn from the system * and store it for future use. This should avoid * hardcoding of DN's in the code. */ slapi_pblock_get(pb, SLAPI_TARGET_DN, &plugindn); - if (plugindn == NULL || strlen(plugindn) == 0) { + if (NULL == plugindn || 0 == strlen(plugindn)) { slapi_log_error(SLAPI_LOG_PLUGIN, DNA_PLUGIN_SUBSYSTEM, "dna_start: had to use hard coded config dn\n"); plugindn = DNA_DN; @@ -357,7 +371,10 @@ static int dna_start(Slapi_PBlock * pb) /** * Load the config for our plug-in */ - PR_INIT_CLIST(config); + dna_global_config = (struct configEntry *) + slapi_ch_calloc(1, sizeof(struct configEntry)); + PR_INIT_CLIST(dna_global_config); + if (loadPluginConfig() != DNA_SUCCESS) { slapi_log_error(SLAPI_LOG_FATAL, DNA_PLUGIN_SUBSYSTEM, "dna_start: unable to load plug-in configuration\n"); @@ -384,6 +401,8 @@ static int dna_close(Slapi_PBlock * pb) deleteConfig(); + slapi_ch_free((void **)&dna_global_config); + slapi_log_error(SLAPI_LOG_TRACE, DNA_PLUGIN_SUBSYSTEM, "<-- dna_close\n"); @@ -393,7 +412,7 @@ static int dna_close(Slapi_PBlock * pb) /* * config looks like this * - cn=myplugin - * --- ou=posix + * --- cn=posix * ------ cn=accounts * ------ cn=groups * --- cn=samba @@ -416,26 +435,28 @@ static int loadPluginConfig() search_pb = slapi_pblock_new(); - slapi_search_internal_set_pb(search_pb, DNA_DN, LDAP_SCOPE_SUBTREE, - "objectclass=*", NULL, 0, NULL, NULL, - getPluginID(), 0); + slapi_search_internal_set_pb(search_pb, getPluginDN(), + LDAP_SCOPE_SUBTREE, "objectclass=*", + NULL, 0, NULL, NULL, getPluginID(), 0); slapi_search_internal_pb(search_pb); slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_RESULT, &result); - if (status != DNA_SUCCESS) { - status = DNA_SUCCESS; + if (LDAP_SUCCESS != result) { + status = DNA_FAILURE; goto cleanup; } slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES, &entries); - if (NULL == entries || entries[0] == NULL) { + if (NULL == entries || NULL == entries[0]) { status = DNA_SUCCESS; goto cleanup; } for (i = 0; (entries[i] != NULL); i++) { status = parseConfigEntry(entries[i]); + if (DNA_SUCCESS != status) + break; } cleanup: @@ -450,17 +471,18 @@ static int loadPluginConfig() static int parseConfigEntry(Slapi_Entry * e) { - char *value = NULL; - configEntry *entry = NULL; - configEntry *config_entry = NULL; - PRCList *list = NULL; + char *value; + struct configEntry *entry; + struct configEntry *config_entry; + PRCList *list; int entry_added = 0; slapi_log_error(SLAPI_LOG_TRACE, DNA_PLUGIN_SUBSYSTEM, "--> parseConfigEntry\n"); - entry = (configEntry *) slapi_ch_calloc(1, sizeof(configEntry)); - if (0 == entry) + entry = (struct configEntry *) + slapi_ch_calloc(1, sizeof(struct configEntry)); + if (NULL == entry) goto bail; value = slapi_entry_get_ndn(e); @@ -469,7 +491,7 @@ static int parseConfigEntry(Slapi_Entry * e) } slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dn [%s] \n", entry->dn, 0, 0); + "----------> dn [%s]\n", entry->dn, 0, 0); value = slapi_entry_attr_get_charptr(e, DNA_TYPE); if (value) { @@ -478,38 +500,41 @@ static int parseConfigEntry(Slapi_Entry * e) goto bail; slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaType [%s] \n", entry->type, 0, 0); + "----------> dnaType [%s]\n", entry->type, 0, 0); + + /* FIXME: check the attribute type, it must suport matching rules and be + * indexed, these are requirements and failure to meet them should result in + * the configuration to be disarded and an ERROR logged prominently */ value = slapi_entry_attr_get_charptr(e, DNA_NEXTVAL); if (value) { entry->nextval = strtoul(value, 0, 0); slapi_ch_free_string(&value); - value = 0; } else goto bail; slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaNextValue [%d] \n", entry->nextval, 0, + "----------> dnaNextValue [%d]\n", entry->nextval, 0, 0); value = slapi_entry_attr_get_charptr(e, DNA_PREFIX); - if (value) { + if (value && value[0]) { entry->prefix = value; } slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaPrefix [%s] \n", entry->prefix, 0, 0); + "----------> dnaPrefix [%s]\n", entry->prefix, 0, 0); value = slapi_entry_attr_get_charptr(e, DNA_INTERVAL); if (value) { entry->interval = strtoul(value, 0, 0); - slapi_ch_free_string(&value); - value = 0; } else goto bail; slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaInterval [%s] \n", value, 0, 0); + "----------> dnaInterval [%s]\n", value, 0, 0); + + slapi_ch_free_string(&value); value = slapi_entry_attr_get_charptr(e, DNA_GENERATE); if (value) { @@ -517,48 +542,59 @@ static int parseConfigEntry(Slapi_Entry * e) } slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaMagicRegen [%s] \n", entry->generate, + "----------> dnaMagicRegen [%s]\n", entry->generate, 0, 0); value = slapi_entry_attr_get_charptr(e, DNA_FILTER); if (value) { - entry->filter = slapi_str2filter(value); + entry->filter = value; + entry->slapi_filter = slapi_str2filter(value); } else goto bail; slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaFilter [%s] \n", value, 0, 0); - - slapi_ch_free_string(&value); - value = 0; + "----------> dnaFilter [%s]\n", value, 0, 0); value = slapi_entry_attr_get_charptr(e, DNA_SCOPE); if (value) { - char *canonical_dn = slapi_dn_normalize(value); - entry->scope = canonical_dn; + entry->scope = slapi_dn_normalize(value); } slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, - "----------> dnaScope [%s] \n", entry->scope, 0, 0); + "----------> dnaScope [%s]\n", entry->scope, 0, 0); + /* optional, if not specified set -1 which is converted to the max unisgnee + * value */ + value = slapi_entry_attr_get_charptr(e, DNA_MAXVAL); + if (value) { + entry->maxval = strtoul(value, 0, 0); - /** - * Finally add the entry to the list - * we group by type then by filter - * and finally sort by dn length with longer dn's - * first - this allows the scope checking - * code to be simple and quick and - * cunningly linear - */ - if (!PR_CLIST_IS_EMPTY(config)) { - list = PR_LIST_HEAD(config); - while (list != config) { - config_entry = (configEntry *) list; + slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, + "----------> dnaMaxValue [%ld]\n", value, 0, 0); + + slapi_ch_free_string(&value); + } else + entry->maxval = -1; + + + /** + * Finally add the entry to the list + * we group by type then by filter + * and finally sort by dn length with longer dn's + * first - this allows the scope checking + * code to be simple and quick and + * cunningly linear + */ + if (!PR_CLIST_IS_EMPTY(dna_global_config)) { + list = PR_LIST_HEAD(dna_global_config); + while (list != dna_global_config) { + config_entry = (struct configEntry *) list; if (slapi_attr_type_cmp(config_entry->type, entry->type, 1)) goto next; - if (slapi_filter_compare(config_entry->filter, entry->filter)) + if (slapi_filter_compare(config_entry->slapi_filter, + entry->slapi_filter)) goto next; if (slapi_dn_issuffix(entry->scope, config_entry->scope)) { @@ -574,7 +610,7 @@ static int parseConfigEntry(Slapi_Entry * e) next: list = PR_NEXT_LINK(list); - if (config == list) { + if (dna_global_config == list) { /* add to tail */ PR_INSERT_BEFORE(&(entry->list), list); slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, @@ -586,7 +622,7 @@ static int parseConfigEntry(Slapi_Entry * e) } } else { /* first entry */ - PR_INSERT_LINK(&(entry->list), config); + PR_INSERT_LINK(&(entry->list), dna_global_config); slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, "store [%s] at head \n", entry->scope, 0, 0); entry_added = 1; @@ -605,9 +641,9 @@ static int parseConfigEntry(Slapi_Entry * e) return DNA_SUCCESS; } -static void freeConfigEntry(configEntry ** entry) +static void freeConfigEntry(struct configEntry ** entry) { - configEntry *e = *entry; + struct configEntry *e = *entry; if (e->dn) { slapi_log_error(SLAPI_LOG_CONFIG, DNA_PLUGIN_SUBSYSTEM, @@ -622,7 +658,10 @@ static void freeConfigEntry(configEntry ** entry) slapi_ch_free_string(&e->prefix); if (e->filter) - slapi_filter_free(e->filter, 1); + slapi_ch_free_string(&e->filter); + + if (e->slapi_filter) + slapi_filter_free(e->slapi_filter, 1); if (e->generate) slapi_ch_free_string(&e->generate); @@ -636,21 +675,45 @@ static void freeConfigEntry(configEntry ** entry) static void deleteConfigEntry(PRCList * entry) { PR_REMOVE_LINK(entry); - freeConfigEntry((configEntry **) & entry); + freeConfigEntry((struct configEntry **) & entry); } static void deleteConfig() { PRCList *list; - while (!PR_CLIST_IS_EMPTY(config)) { - list = PR_LIST_HEAD(config); + while (!PR_CLIST_IS_EMPTY(dna_global_config)) { + list = PR_LIST_HEAD(dna_global_config); deleteConfigEntry(list); } return; } +/**************************************************** + Distributed ranges Helpers +****************************************************/ + +static int dna_fix_maxval(Slapi_DN *dn, unsigned long *cur, unsigned long *max) +{ + /* TODO: check the main partition to see if another range + * is available, and set the new local configuration + * accordingly. + * If a new range is not available run the retrieval task + * and simply return error + */ + + return LDAP_OPERATIONS_ERROR; +} + +static void dna_notice_allocation(Slapi_DN *dn, unsigned long new) +{ + /* TODO: check if we passed a new chunk threshold and update + * the shared configuration on the public partition. + */ + + return; +} /**************************************************** Helpers @@ -697,29 +760,183 @@ static int dna_dn_is_config(char *dn) return ret; } +static LDAPControl *dna_build_sort_control(const char *attr) +{ + LDAPControl *ctrl; + BerElement *ber; + int rc; + + ber = ber_alloc(); + if (NULL == ber) + return NULL; + + rc = ber_printf(ber, "{{s}}", attr); + if (-1 == rc) { + ber_free(ber, 1); + return NULL; + } + + rc = slapi_build_control(LDAP_CONTROL_SORTREQUEST, ber, 1, &ctrl); + + ber_free(ber, 1); + + if (LDAP_SUCCESS != rc) + return NULL; + + return ctrl; +} /**************************************************** Functions that actually do things other than config and startup ****************************************************/ +/* we do search all values between newval and maxval asking the + * server to sort them, then we check the first free spot and + * use it as newval */ +static int dna_first_free_value(struct configEntry *config_entry, + unsigned long *newval, + unsigned long maxval, + unsigned long increment) +{ + Slapi_Entry **entries = NULL; + Slapi_PBlock *pb = NULL; + LDAPControl **ctrls; + char *attrs[2]; + char *filter; + char *prefix; + char *type; + int preflen; + int result, status; + unsigned long tmpval, sval, i; + char *strval = NULL; + + prefix = config_entry->prefix; + type = config_entry->type; + tmpval = *newval; + + attrs[0] = type; + attrs[1] = NULL; + + ctrls = (LDAPControl **)slapi_ch_calloc(2, sizeof(LDAPControl)); + if (NULL == ctrls) + return LDAP_OPERATIONS_ERROR; + + ctrls[0] = dna_build_sort_control(config_entry->type); + if (NULL == ctrls[0]) { + slapi_ch_free((void **)&ctrls); + return LDAP_OPERATIONS_ERROR; + } + + filter = slapi_ch_smprintf("(&%s(&(%s>=%s%llu)(%s<=%s%llu)))", + config_entry->filter, + type, prefix?prefix:"", tmpval, + type, prefix?prefix:"", maxval); + if (NULL == filter) { + ldap_control_free(ctrls[0]); + slapi_ch_free((void **)&ctrls); + return LDAP_OPERATIONS_ERROR; + } + + pb = slapi_pblock_new(); + if (NULL == pb) { + ldap_control_free(ctrls[0]); + slapi_ch_free((void **)&ctrls); + slapi_ch_free_string(&filter); + return LDAP_OPERATIONS_ERROR; + } + + slapi_search_internal_set_pb(pb, config_entry->scope, + LDAP_SCOPE_SUBTREE, filter, + attrs, 0, ctrls, + NULL, getPluginID(), 0); + slapi_search_internal_pb(pb); +/* + ldap_control_free(ctrls[0]); +*/ + slapi_ch_free_string(&filter); + + slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_RESULT, &result); + if (LDAP_SUCCESS != result) { + status = LDAP_OPERATIONS_ERROR; + goto cleanup; + } + + slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES, + &entries); + + if (NULL == entries || NULL == entries[0]) { + /* no values means we already have a good value */ + status = LDAP_SUCCESS; + goto cleanup; + } + + /* entries are sorted and filtered for value >= tval therefore if the + * first one does not match tval it means that the value is free, + * otherwise we need to cycle through values until we find a mismatch, + * the first mismatch is the first free pit */ + + preflen = prefix?strlen(prefix):0; + sval = 0; + for (i = 0; NULL != entries[i]; i++) { + strval = slapi_entry_attr_get_charptr(entries[i], type); + if (preflen) { + if (strlen(strval) <= preflen) { + /* something very wrong here ... */ + status = LDAP_OPERATIONS_ERROR; + goto cleanup; + } + strval = &strval[preflen-1]; + } + + errno = 0; + sval = strtoul(strval, 0, 0); + if (errno) { + /* something very wrong here ... */ + status = LDAP_OPERATIONS_ERROR; + goto cleanup; + } + slapi_ch_free_string(&strval); + + if (tmpval != sval) + break; + + if (maxval < sval) + break; + + tmpval += increment; + } + + *newval = tmpval; + status = LDAP_SUCCESS; + +cleanup: + slapi_ch_free_string(&strval); + slapi_free_search_results_internal(pb); + slapi_pblock_destroy(pb); + + return status; +} /* * Perform ldap operationally atomic increment * Return the next value to be assigned * Method: * 1. retrieve entry - * 2. remove current value, add new value in one operation - * 3. if failed, and less than 3 times, goto 1 + * 2. do increment operations + * 3. remove current value, add new value in one operation + * 4. if failed, and less than 3 times, goto 1 */ -static int dna_get_next_value(configEntry * config_entry, - char **next_value_ret) +static int dna_get_next_value(struct configEntry *config_entry, + char **next_value_ret) { - int ret = LDAP_SUCCESS; - Slapi_DN *dn = 0; - char *attrlist[3]; - Slapi_Entry *e = 0; - int attempts = 0; + Slapi_PBlock *pb = NULL; + char *old_value = NULL; + Slapi_Entry *e = NULL; + Slapi_DN *dn = NULL; + char *attrlist[4]; + int attempts; + int ret; slapi_log_error(SLAPI_LOG_TRACE, DNA_PLUGIN_SUBSYSTEM, "--> dna_get_next_value\n"); @@ -727,8 +944,9 @@ static int dna_get_next_value(configEntry * config_entry, /* get pre-requisites to search */ dn = slapi_sdn_new_dn_byref(config_entry->dn); attrlist[0] = DNA_NEXTVAL; - attrlist[1] = DNA_INTERVAL; - attrlist[2] = 0; + attrlist[1] = DNA_MAXVAL; + attrlist[2] = DNA_INTERVAL; + attrlist[3] = NULL; /* the operation is constructed such that race conditions @@ -739,113 +957,169 @@ static int dna_get_next_value(configEntry * config_entry, slapi_lock_mutex(g_new_value_lock); - while (attempts < 3 && LDAP_SUCCESS == ret) { - attempts++; + for (attempts = 0; attempts < 3; attempts++) { + + LDAPMod mod_add; + LDAPMod mod_delete; + LDAPMod *mods[3]; + char *delete_val[2]; + char *add_val[2]; + char new_value[16]; + char *interval; + char *max_value; + unsigned long increment = 1; /* default increment */ + unsigned long setval = 0; + unsigned long newval = 0; + unsigned long maxval = -1; + int result; /* do update */ - if (e) { - slapi_entry_free(e); - e = 0; + ret = slapi_search_internal_get_entry(dn, attrlist, &e, + getPluginID()); + if (LDAP_SUCCESS != ret) { + ret = LDAP_OPERATIONS_ERROR; + goto done; } - ret = - slapi_search_internal_get_entry(dn, attrlist, &e, - getPluginID()); - if (LDAP_SUCCESS == ret) { - char *old_value; - - old_value = slapi_entry_attr_get_charptr(e, DNA_NEXTVAL); - if (old_value) { - LDAPMod mod_add; - LDAPMod mod_delete; - LDAPMod *mods[3]; - Slapi_PBlock *pb = slapi_pblock_new(); - char *delete_val[2]; - char *add_val[2]; - char new_value[16]; - char *interval = 0; - - mods[0] = &mod_delete; - mods[1] = &mod_add; - mods[2] = 0; - - if (0 == pb) - goto bail; - - interval = slapi_entry_attr_get_charptr(e, DNA_INTERVAL); - if (0 == interval) { - slapi_pblock_destroy(pb); - slapi_ch_free_string(&old_value); - goto bail; - } + old_value = slapi_entry_attr_get_charptr(e, DNA_NEXTVAL); + if (NULL == old_value) { + ret = LDAP_OPERATIONS_ERROR; + goto done; + } + + setval = strtoul(old_value, 0, 0); + + max_value = slapi_entry_attr_get_charptr(e, DNA_MAXVAL); + if (max_value) { + maxval = strtoul(max_value, 0, 0); + slapi_ch_free_string(&max_value); + } - /* perform increment */ + /* if not present the default is 1 */ + interval = slapi_entry_attr_get_charptr(e, DNA_INTERVAL); + if (NULL != interval) { + increment = strtoul(interval, 0, 0); + } - sprintf(new_value, "%lu", - strtoul(interval, 0, 0) + - strtoul(old_value, 0, 0)); + slapi_entry_free(e); + e = NULL; + + /* check the value is actually in range */ + + /* verify the new value is actually free and get the first + * one free if not*/ + ret = dna_first_free_value(config_entry, &setval, maxval, increment); + if (LDAP_SUCCESS != ret) + goto done; + + /* try for a new range or fail */ + if (setval > maxval) { + ret = dna_fix_maxval(dn, &setval, &maxval); + if (LDAP_SUCCESS != ret) { + slapi_log_error(SLAPI_LOG_FATAL, DNA_PLUGIN_SUBSYSTEM, + "dna_get_next_value: no more IDs available!!\n"); + goto done; + } - delete_val[0] = old_value; - delete_val[1] = 0; + /* verify the new value is actually free and get the first + * one free if not */ + ret = dna_first_free_value(config_entry, &setval, maxval, increment); + if (LDAP_SUCCESS != ret) + goto done; + } - mod_delete.mod_op = LDAP_MOD_DELETE; - mod_delete.mod_type = DNA_NEXTVAL; - mod_delete.mod_values = delete_val; + if (setval > maxval) { + ret = LDAP_OPERATIONS_ERROR; + goto done; + } - add_val[0] = new_value; - add_val[1] = 0; + newval = setval + increment; - mod_add.mod_op = LDAP_MOD_ADD; - mod_add.mod_type = DNA_NEXTVAL; - mod_add.mod_values = add_val; + /* try for a new range or fail */ + if (newval > maxval) { + ret = dna_fix_maxval(dn, &newval, &maxval); + if (LDAP_SUCCESS != ret) { + slapi_log_error(SLAPI_LOG_FATAL, DNA_PLUGIN_SUBSYSTEM, + "dna_get_next_value: no more IDs available!!\n"); + goto done; + } + } + /* try to set the new value */ - mods[0] = &mod_delete; - mods[1] = &mod_add; - mods[2] = 0; + sprintf(new_value, "%llu", newval); - slapi_modify_internal_set_pb(pb, config_entry->dn, - mods, 0, 0, getPluginID(), 0); + delete_val[0] = old_value; + delete_val[1] = 0; - slapi_modify_internal_pb(pb); + mod_delete.mod_op = LDAP_MOD_DELETE; + mod_delete.mod_type = DNA_NEXTVAL; + mod_delete.mod_values = delete_val; - slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_RESULT, &ret); + add_val[0] = new_value; + add_val[1] = 0; - slapi_pblock_destroy(pb); - slapi_ch_free_string(&interval); + mod_add.mod_op = LDAP_MOD_ADD; + mod_add.mod_type = DNA_NEXTVAL; + mod_add.mod_values = add_val; - if (LDAP_SUCCESS == ret) { - *next_value_ret = old_value; - break; - } else { - slapi_ch_free_string(&old_value); - if (LDAP_NO_SUCH_ATTRIBUTE != ret) { - /* not the result of a race - to change the value - */ - break; - } else - /* we lost the race to mod - try again - */ - ret = LDAP_SUCCESS; - } - } else - break; - } else - break; + mods[0] = &mod_delete; + mods[1] = &mod_add; + mods[2] = 0; + + pb = slapi_pblock_new(); + if (NULL == pb) { + ret = LDAP_OPERATIONS_ERROR; + goto done; + } + + slapi_modify_internal_set_pb(pb, config_entry->dn, + mods, 0, 0, getPluginID(), 0); + + slapi_modify_internal_pb(pb); + + slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_RESULT, &ret); + + slapi_pblock_destroy(pb); + pb = NULL; + slapi_ch_free_string(&interval); + slapi_ch_free_string(&old_value); + + if (LDAP_SUCCESS == ret) { + *next_value_ret = slapi_ch_smprintf("%llu", setval); + if (NULL == *next_value_ret) { + ret = LDAP_OPERATIONS_ERROR; + goto done; + } + + dna_notice_allocation(dn, newval); + goto done; + } + + if (LDAP_NO_SUCH_ATTRIBUTE != ret) { + /* not the result of a race + to change the value + */ + goto done; + } } - bail: + done: slapi_unlock_mutex(g_new_value_lock); + if (LDAP_SUCCESS != ret) + slapi_ch_free_string(&old_value); + if (dn) slapi_sdn_free(&dn); if (e) slapi_entry_free(e); + if (pb) + slapi_pblock_destroy(pb); + slapi_log_error(SLAPI_LOG_TRACE, DNA_PLUGIN_SUBSYSTEM, "<-- dna_get_next_value\n"); @@ -862,7 +1136,7 @@ static int dna_pre_op(Slapi_PBlock * pb, int modtype) { char *dn = 0; PRCList *list = 0; - configEntry *config_entry = 0; + struct configEntry *config_entry = 0; struct slapi_entry *e = 0; char *last_type = 0; char *value = 0; @@ -916,11 +1190,11 @@ static int dna_pre_op(Slapi_PBlock * pb, int modtype) dna_read_lock(); - if (!PR_CLIST_IS_EMPTY(config)) { - list = PR_LIST_HEAD(config); + if (!PR_CLIST_IS_EMPTY(dna_global_config)) { + list = PR_LIST_HEAD(dna_global_config); - while (list != config && LDAP_SUCCESS == ret) { - config_entry = (configEntry *) list; + while (list != dna_global_config && LDAP_SUCCESS == ret) { + config_entry = (struct configEntry *) list; /* did we already service this type? */ if (last_type) { @@ -935,11 +1209,11 @@ static int dna_pre_op(Slapi_PBlock * pb, int modtype) } /* does the entry match the filter? */ - if (config_entry->filter) { + if (config_entry->slapi_filter) { if (LDAP_SUCCESS != slapi_vattr_filter_test(pb, e, config_entry-> - filter, 0)) + slapi_filter, 0)) goto next; } @@ -972,8 +1246,8 @@ static int dna_pre_op(Slapi_PBlock * pb, int modtype) if (len == bv->bv_len) { if (!slapi_UTF8NCASECMP(bv->bv_val, - config_entry-> - generate, len)) + config_entry->generate, + len)) generate = 1; break; @@ -992,7 +1266,8 @@ static int dna_pre_op(Slapi_PBlock * pb, int modtype) int len; /* create the value to add */ - if ((ret = dna_get_next_value(config_entry, &value))) + ret = dna_get_next_value(config_entry, &value); + if (DNA_SUCCESS != ret) break; len = strlen(value) + 1; @@ -1066,7 +1341,6 @@ static int dna_pre_op(Slapi_PBlock * pb, int modtype) return ret; } - static int dna_add_pre_op(Slapi_PBlock * pb) { return dna_pre_op(pb, LDAP_CHANGETYPE_ADD); @@ -1110,10 +1384,10 @@ void dnaDumpConfig() dna_read_lock(); - if (!PR_CLIST_IS_EMPTY(config)) { - list = PR_LIST_HEAD(config); - while (list != config) { - dnaDumpConfigEntry((configEntry *) list); + if (!PR_CLIST_IS_EMPTY(dna_global_config)) { + list = PR_LIST_HEAD(dna_global_config); + while (list != dna_global_config) { + dnaDumpConfigEntry((struct configEntry *) list); list = PR_NEXT_LINK(list); } } @@ -1122,7 +1396,7 @@ void dnaDumpConfig() } -void dnaDumpConfigEntry(configEntry * entry) +void dnaDumpConfigEntry(struct configEntry * entry) { printf("<- type --------------> %s\n", entry->type); printf("<---- prefix ---------> %s\n", entry->prefix); |