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sssd/0049-IDMAP-New-structure-for-domain-range-params.patch

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Additional upstream fixes
2016-01-20 17:40:57 +00:00
From 3cc105df9f064a4380dc01010f470025217964e7 Mon Sep 17 00:00:00 2001
From: Pavel Reichl <preichl@redhat.com>
Date: Thu, 26 Nov 2015 10:46:34 -0500
Subject: [PATCH 49/55] IDMAP: New structure for domain range params
Create new internal structure idmap_range_params by merging ID mapping
range relevant fields from idmap_domain_info and remove corrsponding
fields.
Resolves:
https://fedorahosted.org/sssd/ticket/2188
Reviewed-by: Sumit Bose <sbose@redhat.com>
(cherry picked from commit c3cdd6a644a870531092e4378cbcd1a428ff514c)
---
src/lib/idmap/sss_idmap.c | 117 ++++++++++++++++++++++++----------------------
1 file changed, 60 insertions(+), 57 deletions(-)
diff --git a/src/lib/idmap/sss_idmap.c b/src/lib/idmap/sss_idmap.c
index b5457f92dbb91ac5109ad17258920549e8808d26..23ed46a583547a3f2f0bca5ab62824bd045e56b9 100644
--- a/src/lib/idmap/sss_idmap.c
+++ b/src/lib/idmap/sss_idmap.c
@@ -33,13 +33,21 @@
#define SID_FMT "%s-%d"
#define SID_STR_MAX_LEN 1024
+/* Hold all parameters for unix<->sid mapping relevant for
+ * given slice. */
+struct idmap_range_params {
+ uint32_t min_id;
+ uint32_t max_id;
+ char *range_id;
+
+ uint32_t first_rid;
+};
+
struct idmap_domain_info {
char *name;
char *sid;
- struct sss_idmap_range *range;
+ struct idmap_range_params range_params;
struct idmap_domain_info *next;
- uint32_t first_rid;
- char *range_id;
bool external_mapping;
};
@@ -72,37 +80,17 @@ static char *idmap_strdup(struct sss_idmap_ctx *ctx, const char *str)
return new;
}
-static struct sss_idmap_range *idmap_range_dup(struct sss_idmap_ctx *ctx,
- struct sss_idmap_range *range)
-{
- struct sss_idmap_range *new = NULL;
-
- CHECK_IDMAP_CTX(ctx, NULL);
-
-
- new = ctx->alloc_func(sizeof(struct sss_idmap_range), ctx->alloc_pvt);
- if (new == NULL) {
- return NULL;
- }
-
- memset(new, 0, sizeof(struct sss_idmap_range));
-
- new->min = range->min;
- new->max = range->max;
-
- return new;
-}
-
-static bool id_is_in_range(uint32_t id, struct idmap_domain_info *dom,
+static bool id_is_in_range(uint32_t id,
+ struct idmap_range_params *rp,
uint32_t *rid)
{
- if (id == 0 || dom == NULL || dom->range == NULL) {
+ if (id == 0 || rp == NULL) {
return false;
}
- if (id >= dom->range->min && id <= dom->range->max) {
+ if (id >= rp->min_id && id <= rp->max_id) {
if (rid != NULL) {
- *rid = dom->first_rid + (id - dom->range->min);
+ *rid = rp->first_rid + (id - rp->min_id);
}
return true;
@@ -220,8 +208,7 @@ static void sss_idmap_free_domain(struct sss_idmap_ctx *ctx,
return;
}
- ctx->free_func(dom->range_id, ctx->alloc_pvt);
- ctx->free_func(dom->range, ctx->alloc_pvt);
+ ctx->free_func(dom->range_params.range_id, ctx->alloc_pvt);
ctx->free_func(dom->name, ctx->alloc_pvt);
ctx->free_func(dom->sid, ctx->alloc_pvt);
ctx->free_func(dom, ctx->alloc_pvt);
@@ -340,9 +327,12 @@ enum idmap_error_code sss_idmap_calculate_range(struct sss_idmap_ctx *ctx,
/* Verify that this slice is not already in use */
do {
for (dom = ctx->idmap_domain_info; dom != NULL; dom = dom->next) {
- if ((dom->range->min <= min && dom->range->max >= max) ||
- (dom->range->min >= min && dom->range->min <= max) ||
- (dom->range->max >= min && dom->range->max <= max)) {
+ uint32_t dmin = dom->range_params.min_id;
+ uint32_t dmax = dom->range_params.max_id;
+
+ if ((dmin <= min && dmax >= max) ||
+ (dmin >= min && dmin <= max) ||
+ (dmax >= min && dmax <= max)) {
/* This range overlaps one already registered
* We'll try the next available slot
*/
@@ -445,10 +435,17 @@ enum idmap_error_code sss_idmap_check_collision(struct sss_idmap_ctx *ctx,
{
struct idmap_domain_info *dom;
enum idmap_error_code err;
+ struct sss_idmap_range range;
for (dom = ctx->idmap_domain_info; dom != NULL; dom = dom->next) {
- err = sss_idmap_check_collision_ex(dom->name, dom->sid, dom->range,
- dom->first_rid, dom->range_id,
+
+ range.min = dom->range_params.min_id;
+ range.max = dom->range_params.max_id;
+
+ err = sss_idmap_check_collision_ex(dom->name, dom->sid,
+ &range,
+ dom->range_params.first_rid,
+ dom->range_params.range_id,
dom->external_mapping,
n_name, n_sid, n_range, n_first_rid,
n_range_id, n_external_mapping);
@@ -459,20 +456,29 @@ enum idmap_error_code sss_idmap_check_collision(struct sss_idmap_ctx *ctx,
return IDMAP_SUCCESS;
}
-static enum idmap_error_code dom_check_collision(
- struct idmap_domain_info *dom_list,
- struct idmap_domain_info *new_dom)
+static enum
+idmap_error_code dom_check_collision(struct idmap_domain_info *dom_list,
+ struct idmap_domain_info *new_dom)
{
struct idmap_domain_info *dom;
enum idmap_error_code err;
+ struct sss_idmap_range range;
+ struct sss_idmap_range new_dom_range = { new_dom->range_params.min_id,
+ new_dom->range_params.max_id };
for (dom = dom_list; dom != NULL; dom = dom->next) {
- err = sss_idmap_check_collision_ex(dom->name, dom->sid, dom->range,
- dom->first_rid, dom->range_id,
+ range.min = dom->range_params.min_id;
+ range.max = dom->range_params.max_id;
+
+ err = sss_idmap_check_collision_ex(dom->name, dom->sid,
+ &range,
+ dom->range_params.first_rid,
+ dom->range_params.range_id,
dom->external_mapping,
new_dom->name, new_dom->sid,
- new_dom->range, new_dom->first_rid,
- new_dom->range_id,
+ &new_dom_range,
+ new_dom->range_params.first_rid,
+ new_dom->range_params.range_id,
new_dom->external_mapping);
if (err != IDMAP_SUCCESS) {
return err;
@@ -531,21 +537,18 @@ enum idmap_error_code sss_idmap_add_domain_ex(struct sss_idmap_ctx *ctx,
}
}
- dom->range = idmap_range_dup(ctx, range);
- if (dom->range == NULL) {
- err = IDMAP_OUT_OF_MEMORY;
- goto fail;
- }
+ dom->range_params.min_id = range->min;
+ dom->range_params.max_id = range->max;
if (range_id != NULL) {
- dom->range_id = idmap_strdup(ctx, range_id);
- if (dom->range_id == NULL) {
+ dom->range_params.range_id = idmap_strdup(ctx, range_id);
+ if (dom->range_params.range_id == NULL) {
err = IDMAP_OUT_OF_MEMORY;
goto fail;
}
}
- dom->first_rid = rid;
+ dom->range_params.first_rid = rid;
dom->external_mapping = external_mapping;
err = dom_check_collision(ctx->idmap_domain_info, dom);
@@ -621,10 +624,10 @@ enum idmap_error_code sss_idmap_sid_to_unix(struct sss_idmap_ctx *ctx,
return IDMAP_SID_INVALID;
}
- if (rid >= idmap_domain_info->first_rid) {
- id = idmap_domain_info->range->min
- + (rid - idmap_domain_info->first_rid);
- if (id <= idmap_domain_info->range->max) {
+ if (rid >= idmap_domain_info->range_params.first_rid) {
+ id = idmap_domain_info->range_params.min_id
+ + (rid - idmap_domain_info->range_params.first_rid);
+ if (id <= idmap_domain_info->range_params.max_id) {
*_id = id;
return IDMAP_SUCCESS;
}
@@ -670,8 +673,8 @@ enum idmap_error_code sss_idmap_check_sid_unix(struct sss_idmap_ctx *ctx,
if (strlen(sid) > dom_len && sid[dom_len] == '-'
&& strncmp(sid, idmap_domain_info->sid, dom_len) == 0) {
- if (id >= idmap_domain_info->range->min
- && id <= idmap_domain_info->range->max) {
+ if (id >= idmap_domain_info->range_params.min_id
+ && id <= idmap_domain_info->range_params.max_id) {
return IDMAP_SUCCESS;
}
@@ -700,7 +703,7 @@ enum idmap_error_code sss_idmap_unix_to_sid(struct sss_idmap_ctx *ctx,
idmap_domain_info = ctx->idmap_domain_info;
while (idmap_domain_info != NULL) {
- if (id_is_in_range(id, idmap_domain_info, &rid)) {
+ if (id_is_in_range(id, &idmap_domain_info->range_params, &rid)) {
if (idmap_domain_info->external_mapping == true
|| idmap_domain_info->sid == NULL) {
--
2.5.0
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