summaryrefslogtreecommitdiff
path: root/src/providers/proxy
diff options
context:
space:
mode:
Diffstat (limited to 'src/providers/proxy')
-rw-r--r--src/providers/proxy/proxy_id.c666
1 files changed, 354 insertions, 312 deletions
diff --git a/src/providers/proxy/proxy_id.c b/src/providers/proxy/proxy_id.c
index 4f2dbd88..d92fc4ea 100644
--- a/src/providers/proxy/proxy_id.c
+++ b/src/providers/proxy/proxy_id.c
@@ -27,11 +27,13 @@
/* =Getpwnam-wrapper======================================================*/
-static int delete_user(TALLOC_CTX *mem_ctx, struct sysdb_ctx *sysdb,
- struct sss_domain_info *domain, const char *name);
-
static int save_user(struct sysdb_ctx *sysdb, bool lowercase,
- struct passwd *pwd, uint64_t cache_timeout);
+ struct passwd *pwd, const char *alias,
+ uint64_t cache_timeout);
+
+static int
+handle_getpw_result(enum nss_status status, struct passwd *pwd,
+ struct sss_domain_info *dom, bool *del_user);
static int get_pw_name(TALLOC_CTX *mem_ctx,
struct proxy_id_ctx *ctx,
@@ -45,10 +47,12 @@ static int get_pw_name(TALLOC_CTX *mem_ctx,
char *buffer;
size_t buflen;
int ret;
+ uid_t uid;
+ bool del_user;
- DEBUG(7, ("Searching user by name (%s)\n", name));
+ DEBUG(SSSDBG_TRACE_FUNC, ("Searching user by name (%s)\n", name));
- tmpctx = talloc_new(mem_ctx);
+ tmpctx = talloc_new(NULL);
if (!tmpctx) {
return ENOMEM;
}
@@ -71,67 +75,114 @@ static int get_pw_name(TALLOC_CTX *mem_ctx,
/* FIXME: should we move this call outside the transaction to keep the
* transaction as short as possible ? */
status = ctx->ops.getpwnam_r(name, pwd, buffer, buflen, &ret);
+ ret = handle_getpw_result(status, pwd, dom, &del_user);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getpwnam failed [%d]: %s\n", ret, strerror(ret)));
+ goto done;
+ }
+
+ if (del_user) {
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("User %s does not exist (or is invalid) on remote server,"
+ " deleting!\n", name));
+ ret = sysdb_delete_user(sysdb, name, 0);
+ goto done;
+ }
+
+ uid = pwd->pw_uid;
+ memset(buffer, 0, buflen);
+
+ /* Canonicalize the username in case it was actually an alias */
+ status = ctx->ops.getpwuid_r(uid, pwd, buffer, buflen, &ret);
+ ret = handle_getpw_result(status, pwd, dom, &del_user);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getpwuid failed [%d]: %s\n", ret, strerror(ret)));
+ goto done;
+ }
+
+ if (del_user) {
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("User %s does not exist (or is invalid) on remote server,"
+ " deleting!\n", name));
+ ret = sysdb_delete_user(sysdb, name, uid);
+ goto done;
+ }
+
+ /* Both lookups went fine, we can save the user now */
+ ret = save_user(sysdb, !dom->case_sensitive, pwd,
+ name, dom->user_timeout);
+
+done:
+ talloc_zfree(tmpctx);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("proxy -> getpwnam_r failed for '%s' <%d>\n",
+ name, status));
+ }
+ return ret;
+}
+
+static int
+handle_getpw_result(enum nss_status status, struct passwd *pwd,
+ struct sss_domain_info *dom, bool *del_user)
+{
+ int ret = EOK;
+
+ if (!del_user) {
+ return EINVAL;
+ }
+ *del_user = false;
switch (status) {
case NSS_STATUS_NOTFOUND:
- DEBUG(7, ("User %s not found.\n", name));
- ret = delete_user(tmpctx, sysdb, dom, name);
- if (ret) {
- goto done;
- }
+ DEBUG(SSSDBG_MINOR_FAILURE, ("User not found.\n"));
+ *del_user = true;
break;
case NSS_STATUS_SUCCESS:
- DEBUG(7, ("User %s found: (%s, %d, %d)\n",
- name, pwd->pw_name, pwd->pw_uid, pwd->pw_gid));
+ DEBUG(SSSDBG_TRACE_FUNC, ("User found: (%s, %d, %d)\n",
+ pwd->pw_name, pwd->pw_uid, pwd->pw_gid));
/* uid=0 or gid=0 are invalid values */
/* also check that the id is in the valid range for this domain */
if (OUT_OF_ID_RANGE(pwd->pw_uid, dom->id_min, dom->id_max) ||
OUT_OF_ID_RANGE(pwd->pw_gid, dom->id_min, dom->id_max)) {
- DEBUG(2, ("User [%s] filtered out! (id out of range)\n", name));
- ret = delete_user(tmpctx, sysdb, dom, name);
- if (ret) {
- goto done;
- }
+ DEBUG(SSSDBG_MINOR_FAILURE,
+ ("User filtered out! (id out of range)\n"));
+ *del_user = true;
break;
}
-
- ret = save_user(sysdb, !dom->case_sensitive, pwd, dom->user_timeout);
- if (ret) {
- goto done;
- }
break;
case NSS_STATUS_UNAVAIL:
- /* "remote" backend unavailable. Enter offline mode */
+ DEBUG(SSSDBG_MINOR_FAILURE,
+ ("Remote back end is not available. Entering offline mode\n"));
ret = ENXIO;
- goto done;
+ break;
default:
+ DEBUG(SSSDBG_OP_FAILURE, ("Unknown return code %d\n", status));
ret = EIO;
- goto done;
+ break;
}
-done:
- talloc_zfree(tmpctx);
- if (ret) {
- DEBUG(2, ("proxy -> getpwnam_r failed for '%s' <%d>\n",
- name, status));
- }
return ret;
}
static int save_user(struct sysdb_ctx *sysdb, bool lowercase,
- struct passwd *pwd, uint64_t cache_timeout)
+ struct passwd *pwd, const char *alias,
+ uint64_t cache_timeout)
{
const char *shell;
char *lower;
struct sysdb_attrs *attrs = NULL;
errno_t ret;
+ const char *cased_alias;
if (pwd->pw_shell && pwd->pw_shell[0] != '\0') {
shell = pwd->pw_shell;
@@ -139,13 +190,15 @@ static int save_user(struct sysdb_ctx *sysdb, bool lowercase,
shell = NULL;
}
- if (lowercase) {
+ if (!lowercase || alias) {
attrs = sysdb_new_attrs(NULL);
if (!attrs) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Allocation error ?!\n"));
return ENOMEM;
}
+ }
+ if (lowercase) {
lower = sss_tc_utf8_str_tolower(attrs, pwd->pw_name);
if (!lower) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot convert name to lowercase\n"));
@@ -161,6 +214,21 @@ static int save_user(struct sysdb_ctx *sysdb, bool lowercase,
}
}
+ if (alias) {
+ cased_alias = sss_get_cased_name(attrs, alias, !lowercase);
+ if (!cased_alias) {
+ talloc_zfree(attrs);
+ return ENOMEM;
+ }
+
+ ret = sysdb_attrs_add_string(attrs, SYSDB_NAME_ALIAS, cased_alias);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not add name alias\n"));
+ talloc_zfree(attrs);
+ return ret;
+ }
+ }
+
ret = sysdb_store_user(sysdb,
pwd->pw_name,
pwd->pw_passwd,
@@ -182,22 +250,6 @@ static int save_user(struct sysdb_ctx *sysdb, bool lowercase,
return EOK;
}
-static int delete_user(TALLOC_CTX *mem_ctx, struct sysdb_ctx *sysdb,
- struct sss_domain_info *domain, const char *name)
-{
- struct ldb_dn *dn;
-
- DEBUG(7, ("User %s does not exist (or is invalid) on remote server,"
- " deleting!\n", name));
-
- dn = sysdb_user_dn(sysdb, mem_ctx, domain->name, name);
- if (!dn) {
- return ENOMEM;
- }
-
- return sysdb_delete_entry(sysdb, dn, true);
-}
-
/* =Getpwuid-wrapper======================================================*/
static int get_pw_uid(TALLOC_CTX *mem_ctx,
@@ -214,9 +266,9 @@ static int get_pw_uid(TALLOC_CTX *mem_ctx,
bool del_user = false;
int ret;
- DEBUG(7, ("Searching user by uid (%d)\n", uid));
+ DEBUG(SSSDBG_TRACE_FUNC, ("Searching user by uid (%d)\n", uid));
- tmpctx = talloc_new(mem_ctx);
+ tmpctx = talloc_new(NULL);
if (!tmpctx) {
return ENOMEM;
}
@@ -224,75 +276,40 @@ static int get_pw_uid(TALLOC_CTX *mem_ctx,
pwd = talloc_zero(tmpctx, struct passwd);
if (!pwd) {
ret = ENOMEM;
- DEBUG(1, ("proxy -> getpwuid_r failed for '%d': [%d] %s\n",
- uid, ret, strerror(ret)));
- return ret;
+ goto done;
}
buflen = DEFAULT_BUFSIZE;
buffer = talloc_size(tmpctx, buflen);
if (!buffer) {
ret = ENOMEM;
- DEBUG(1, ("proxy -> getpwuid_r failed for '%d': [%d] %s\n",
- uid, ret, strerror(ret)));
- return ret;
+ goto done;
}
status = ctx->ops.getpwuid_r(uid, pwd, buffer, buflen, &ret);
-
- switch (status) {
- case NSS_STATUS_NOTFOUND:
-
- DEBUG(7, ("User %d not found.\n", uid));
- del_user = true;
- break;
-
- case NSS_STATUS_SUCCESS:
-
- DEBUG(7, ("User %d found (%s, %d, %d)\n",
- uid, pwd->pw_name, pwd->pw_uid, pwd->pw_gid));
-
- /* uid=0 or gid=0 are invalid values */
- /* also check that the id is in the valid range for this domain */
- if (OUT_OF_ID_RANGE(pwd->pw_uid, dom->id_min, dom->id_max) ||
- OUT_OF_ID_RANGE(pwd->pw_gid, dom->id_min, dom->id_max)) {
-
- DEBUG(2, ("User [%s] filtered out! (id out of range)\n",
- pwd->pw_name));
- del_user = true;
- break;
- }
-
- ret = save_user(sysdb, !dom->case_sensitive, pwd, dom->user_timeout);
- if (ret) {
- goto done;
- }
- break;
-
- case NSS_STATUS_UNAVAIL:
- /* "remote" backend unavailable. Enter offline mode */
- ret = ENXIO;
- goto done;
-
- default:
- ret = EIO;
+ ret = handle_getpw_result(status, pwd, dom, &del_user);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getpwuid failed [%d]: %s\n", ret, strerror(ret)));
goto done;
}
if (del_user) {
- DEBUG(7, ("User %d does not exist (or is invalid) on remote server,"
- " deleting!\n", uid));
-
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("User %d does not exist (or is invalid) on remote server,"
+ " deleting!\n", uid));
ret = sysdb_delete_user(sysdb, NULL, uid);
- if (ret) {
- goto done;
- }
+ goto done;
}
+ ret = save_user(sysdb, !dom->case_sensitive, pwd,
+ NULL, dom->user_timeout);
+
done:
talloc_zfree(tmpctx);
if (ret) {
- DEBUG(2, ("proxy -> getpwuid_r failed for '%d' <%d>\n", uid, status));
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("proxy -> getpwuid_r failed for '%d' <%d>\n", uid, status));
}
return ret;
}
@@ -394,7 +411,8 @@ again:
goto again; /* skip */
}
- ret = save_user(sysdb, !dom->case_sensitive, pwd, dom->user_timeout);
+ ret = save_user(sysdb, !dom->case_sensitive, pwd,
+ NULL, dom->user_timeout);
if (ret) {
/* Do not fail completely on errors.
* Just report the failure to save and go on */
@@ -448,11 +466,13 @@ static errno_t proxy_process_missing_users(struct sysdb_ctx *sysdb,
struct group *grp,
time_t now);
static int save_group(struct sysdb_ctx *sysdb, struct sss_domain_info *dom,
- struct group *grp, uint64_t cache_timeout)
+ struct group *grp, const char *alias,
+ uint64_t cache_timeout)
{
errno_t ret, sret;
struct sysdb_attrs *attrs = NULL;
char *lower;
+ const char *cased_alias;
TALLOC_CTX *tmp_ctx;
time_t now = time(NULL);
bool in_transaction = false;
@@ -492,7 +512,7 @@ static int save_group(struct sysdb_ctx *sysdb, struct sss_domain_info *dom,
}
}
- if (dom->case_sensitive == false) {
+ if (dom->case_sensitive == false || alias) {
if (!attrs) {
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
@@ -502,18 +522,35 @@ static int save_group(struct sysdb_ctx *sysdb, struct sss_domain_info *dom,
}
}
- lower = sss_tc_utf8_str_tolower(attrs, grp->gr_name);
- if (!lower) {
- DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot convert name to lowercase\n"));
- ret = ENOMEM;
- goto done;
+ if (dom->case_sensitive == false) {
+ lower = sss_tc_utf8_str_tolower(attrs, grp->gr_name);
+ if (!lower) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot convert name to lowercase\n"));
+ ret = ENOMEM;
+ goto done;
+ }
+
+ ret = sysdb_attrs_add_string(attrs, SYSDB_NAME_ALIAS, lower);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not add name alias\n"));
+ ret = ENOMEM;
+ goto done;
+ }
}
- ret = sysdb_attrs_add_string(attrs, SYSDB_NAME_ALIAS, lower);
- if (ret) {
- DEBUG(SSSDBG_OP_FAILURE, ("Could not add name alias\n"));
- ret = ENOMEM;
- goto done;
+ if (alias) {
+ cased_alias = sss_get_cased_name(attrs, alias, dom->case_sensitive);
+ if (!cased_alias) {
+ talloc_zfree(attrs);
+ return ENOMEM;
+ }
+
+ ret = sysdb_attrs_add_string(attrs, SYSDB_NAME_ALIAS, cased_alias);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not add name alias\n"));
+ ret = ENOMEM;
+ goto done;
+ }
}
}
@@ -600,6 +637,73 @@ done:
}
/* =Getgrnam-wrapper======================================================*/
+static char *
+grow_group_buffer(TALLOC_CTX *mem_ctx,
+ char **buffer, size_t *buflen)
+{
+ char *newbuf;
+
+ if (*buflen == 0) {
+ *buflen = DEFAULT_BUFSIZE;
+ }
+ if (*buflen < MAX_BUF_SIZE) {
+ *buflen *= 2;
+ }
+ if (*buflen > MAX_BUF_SIZE) {
+ *buflen = MAX_BUF_SIZE;
+ }
+
+ newbuf = talloc_realloc_size(mem_ctx, *buffer, *buflen);
+ if (!newbuf) {
+ return NULL;
+ }
+ *buffer = newbuf;
+
+ return *buffer;
+}
+
+static errno_t
+handle_getgr_result(enum nss_status status, struct group *grp,
+ struct sss_domain_info *dom,
+ bool *delete_group)
+{
+ switch (status) {
+ case NSS_STATUS_TRYAGAIN:
+ DEBUG(SSSDBG_MINOR_FAILURE, ("Buffer too small\n"));
+ return EAGAIN;
+
+ case NSS_STATUS_NOTFOUND:
+ DEBUG(SSSDBG_MINOR_FAILURE, ("Group not found.\n"));
+ *delete_group = true;
+ break;
+
+ case NSS_STATUS_SUCCESS:
+ DEBUG(SSSDBG_FUNC_DATA, ("Group found: (%s, %d)\n",
+ grp->gr_name, grp->gr_gid));
+
+ /* gid=0 is an invalid value */
+ /* also check that the id is in the valid range for this domain */
+ if (OUT_OF_ID_RANGE(grp->gr_gid, dom->id_min, dom->id_max)) {
+ DEBUG(SSSDBG_MINOR_FAILURE,
+ ("Group filtered out! (id out of range)\n"));
+ *delete_group = true;
+ break;
+ }
+ break;
+
+ case NSS_STATUS_UNAVAIL:
+ DEBUG(SSSDBG_MINOR_FAILURE,
+ ("Remote back end is not available. Entering offline mode\n"));
+ return ENXIO;
+
+ default:
+ DEBUG(SSSDBG_OP_FAILURE, ("Unknown return code %d\n", status));
+ return EIO;
+ }
+
+ return EOK;
+}
+
static int get_gr_name(TALLOC_CTX *mem_ctx,
struct proxy_id_ctx *ctx,
struct sysdb_ctx *sysdb,
@@ -609,15 +713,15 @@ static int get_gr_name(TALLOC_CTX *mem_ctx,
TALLOC_CTX *tmpctx;
struct group *grp;
enum nss_status status;
- char *buffer;
- char *newbuf;
- size_t buflen;
+ char *buffer = 0;
+ size_t buflen = 0;
bool delete_group = false;
int ret;
+ gid_t gid;
- DEBUG(7, ("Searching group by name (%s)\n", name));
+ DEBUG(SSSDBG_FUNC_DATA, ("Searching group by name (%s)\n", name));
- tmpctx = talloc_new(mem_ctx);
+ tmpctx = talloc_new(NULL);
if (!tmpctx) {
return ENOMEM;
}
@@ -625,111 +729,83 @@ static int get_gr_name(TALLOC_CTX *mem_ctx,
grp = talloc(tmpctx, struct group);
if (!grp) {
ret = ENOMEM;
- DEBUG(1, ("proxy -> getgrnam_r failed for '%s': [%d] %s\n",
- name, ret, strerror(ret)));
- return ret;
- }
-
- buflen = DEFAULT_BUFSIZE;
- buffer = talloc_size(tmpctx, buflen);
- if (!buffer) {
- ret = ENOMEM;
- DEBUG(1, ("proxy -> getgrnam_r failed for '%s': [%d] %s\n",
- name, ret, strerror(ret)));
- return ret;
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("proxy -> getgrnam_r failed for '%s': [%d] %s\n",
+ name, ret, strerror(ret)));
+ goto done;
}
- /* FIXME: should we move this call outside the transaction to keep the
- * transaction as short as possible ? */
-again:
- /* always zero out the grp structure */
- memset(grp, 0, sizeof(struct group));
-
- status = ctx->ops.getgrnam_r(name, grp, buffer, buflen, &ret);
-
- switch (status) {
- case NSS_STATUS_TRYAGAIN:
- /* buffer too small ? */
- if (buflen < MAX_BUF_SIZE) {
- buflen *= 2;
- }
- if (buflen > MAX_BUF_SIZE) {
- buflen = MAX_BUF_SIZE;
- }
- newbuf = talloc_realloc_size(tmpctx, buffer, buflen);
- if (!newbuf) {
+ do {
+ /* always zero out the grp structure */
+ memset(grp, 0, sizeof(struct group));
+ buffer = grow_group_buffer(tmpctx, &buffer, &buflen);
+ if (!buffer) {
ret = ENOMEM;
goto done;
}
- buffer = newbuf;
- goto again;
-
- case NSS_STATUS_NOTFOUND:
- DEBUG(7, ("Group %s not found.\n", name));
- delete_group = true;
- break;
-
- case NSS_STATUS_SUCCESS:
+ status = ctx->ops.getgrnam_r(name, grp, buffer, buflen, &ret);
- DEBUG(7, ("Group %s found: (%s, %d)\n",
- name, grp->gr_name, grp->gr_gid));
+ ret = handle_getgr_result(status, grp, dom, &delete_group);
+ } while (ret == EAGAIN);
- /* gid=0 is an invalid value */
- /* also check that the id is in the valid range for this domain */
- if (OUT_OF_ID_RANGE(grp->gr_gid, dom->id_min, dom->id_max)) {
+ if (ret != EOK) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getgrnam failed [%d]: %s\n", ret, strerror(ret)));
+ goto done;
+ }
- DEBUG(2, ("Group [%s] filtered out! (id out of range)\n",
- name));
- delete_group = true;
- break;
- }
+ gid = grp->gr_gid;
+ talloc_zfree(buffer);
+ buflen = 0;
- ret = save_group(sysdb, dom, grp, dom->group_timeout);
- if (ret) {
+ /* Canonicalize the group name in case it was actually an alias */
+ do {
+ memset(grp, 0, sizeof(struct group));
+ buffer = grow_group_buffer(tmpctx, &buffer, &buflen);
+ if (!buffer) {
+ ret = ENOMEM;
goto done;
}
- break;
- case NSS_STATUS_UNAVAIL:
- /* "remote" backend unavailable. Enter offline mode */
- ret = ENXIO;
- goto done;
+ status = ctx->ops.getgrgid_r(gid, grp, buffer, buflen, &ret);
- default:
- ret = EIO;
+ ret = handle_getgr_result(status, grp, dom, &delete_group);
+ } while(ret == EAGAIN);
+
+ if (ret != EOK) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getgrgid failed [%d]: %s\n", ret, strerror(ret)));
goto done;
}
if (delete_group) {
- struct ldb_dn *dn;
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("Group %s does not exist (or is invalid) on remote server,"
+ " deleting!\n", name));
- DEBUG(7, ("Group %s does not exist (or is invalid) on remote server,"
- " deleting!\n", name));
-
- dn = sysdb_group_dn(sysdb, tmpctx, dom->name, name);
- if (!dn) {
- ret = ENOMEM;
- goto done;
- }
+ ret = sysdb_delete_group(sysdb, NULL, gid);
+ goto done;
+ }
- ret = sysdb_delete_entry(sysdb, dn, true);
- if (ret) {
- goto done;
- }
+ ret = save_group(sysdb, dom, grp, name, dom->group_timeout);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("Cannot save group [%d]: %s\n", ret, strerror(ret)));
+ goto done;
}
done:
talloc_zfree(tmpctx);
if (ret) {
- DEBUG(2, ("proxy -> getgrnam_r failed for '%s' <%d>\n",
- name, status));
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("proxy -> getgrnam_r failed for '%s' <%d>\n",
+ name, status));
}
return ret;
}
/* =Getgrgid-wrapper======================================================*/
-
static int get_gr_gid(TALLOC_CTX *mem_ctx,
struct proxy_id_ctx *ctx,
struct sysdb_ctx *sysdb,
@@ -740,13 +816,12 @@ static int get_gr_gid(TALLOC_CTX *mem_ctx,
TALLOC_CTX *tmpctx;
struct group *grp;
enum nss_status status;
- char *buffer;
- char *newbuf;
- size_t buflen;
+ char *buffer = NULL;
+ size_t buflen = 0;
bool delete_group = false;
int ret;
- DEBUG(7, ("Searching group by gid (%d)\n", gid));
+ DEBUG(SSSDBG_TRACE_FUNC, ("Searching group by gid (%d)\n", gid));
tmpctx = talloc_new(mem_ctx);
if (!tmpctx) {
@@ -756,96 +831,45 @@ static int get_gr_gid(TALLOC_CTX *mem_ctx,
grp = talloc(tmpctx, struct group);
if (!grp) {
ret = ENOMEM;
- DEBUG(1, ("proxy -> getgrgid_r failed for '%d': [%d] %s\n",
- gid, ret, strerror(ret)));
- return ret;
- }
-
- buflen = DEFAULT_BUFSIZE;
- buffer = talloc_size(tmpctx, buflen);
- if (!buffer) {
- ret = ENOMEM;
- DEBUG(1, ("proxy -> getgrgid_r failed for '%d': [%d] %s\n",
- gid, ret, strerror(ret)));
- return ret;
+ goto done;
}
-again:
- /* always zero out the group structure */
- memset(grp, 0, sizeof(struct group));
-
- status = ctx->ops.getgrgid_r(gid, grp, buffer, buflen, &ret);
-
- switch (status) {
- case NSS_STATUS_TRYAGAIN:
- /* buffer too small ? */
- if (buflen < MAX_BUF_SIZE) {
- buflen *= 2;
- }
- if (buflen > MAX_BUF_SIZE) {
- buflen = MAX_BUF_SIZE;
- }
- newbuf = talloc_realloc_size(tmpctx, buffer, buflen);
- if (!newbuf) {
+ do {
+ /* always zero out the grp structure */
+ memset(grp, 0, sizeof(struct group));
+ buffer = grow_group_buffer(tmpctx, &buffer, &buflen);
+ if (!buffer) {
ret = ENOMEM;
goto done;
}
- buffer = newbuf;
- goto again;
-
- case NSS_STATUS_NOTFOUND:
-
- DEBUG(7, ("Group %d not found.\n", gid));
- delete_group = true;
- break;
-
- case NSS_STATUS_SUCCESS:
- DEBUG(7, ("Group %d found (%s, %d)\n",
- gid, grp->gr_name, grp->gr_gid));
+ status = ctx->ops.getgrgid_r(gid, grp, buffer, buflen, &ret);
- /* gid=0 is an invalid value */
- /* also check that the id is in the valid range for this domain */
- if (OUT_OF_ID_RANGE(grp->gr_gid, dom->id_min, dom->id_max)) {
-
- DEBUG(2, ("Group [%s] filtered out! (id out of range)\n",
- grp->gr_name));
- delete_group = true;
- break;
- }
-
- ret = save_group(sysdb, dom, grp, dom->group_timeout);
- if (ret) {
- goto done;
- }
- break;
+ ret = handle_getgr_result(status, grp, dom, &delete_group);
+ } while (ret == EAGAIN);
- case NSS_STATUS_UNAVAIL:
- /* "remote" backend unavailable. Enter offline mode */
- ret = ENXIO;
- goto done;
+ if (delete_group) {
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("Group %d does not exist (or is invalid) on remote server,"
+ " deleting!\n", gid));
- default:
- ret = EIO;
+ ret = sysdb_delete_group(sysdb, NULL, gid);
goto done;
}
- if (delete_group) {
-
- DEBUG(7, ("Group %d does not exist (or is invalid) on remote server,"
- " deleting!\n", gid));
-
- ret = sysdb_delete_group(sysdb, NULL, gid);
- if (ret) {
- goto done;
- }
+ ret = save_group(sysdb, dom, grp, NULL, dom->group_timeout);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("Cannot save user [%d]: %s\n", ret, strerror(ret)));
+ goto done;
}
done:
talloc_zfree(tmpctx);
if (ret) {
- DEBUG(2, ("proxy -> getgrgid_r failed for '%d' <%d>\n",
- gid, status));
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("proxy -> getgrgid_r failed for '%d' <%d>\n",
+ gid, status));
}
return ret;
}
@@ -946,7 +970,7 @@ again:
goto again; /* skip */
}
- ret = save_group(sysdb, dom, grp, dom->group_timeout);
+ ret = save_group(sysdb, dom, grp, NULL, dom->group_timeout);
if (ret) {
/* Do not fail completely on errors.
* Just report the failure to save and go on */
@@ -997,6 +1021,8 @@ static int get_initgr(TALLOC_CTX *mem_ctx,
char *buffer;
size_t buflen;
int ret;
+ bool del_user;
+ uid_t uid;
tmpctx = talloc_new(mem_ctx);
if (!tmpctx) {
@@ -1006,74 +1032,90 @@ static int get_initgr(TALLOC_CTX *mem_ctx,
pwd = talloc_zero(tmpctx, struct passwd);
if (!pwd) {
ret = ENOMEM;
- goto done;
+ goto fail;
}
buflen = DEFAULT_BUFSIZE;
buffer = talloc_size(tmpctx, buflen);
if (!buffer) {
ret = ENOMEM;
- goto done;
+ goto fail;
}
ret = sysdb_transaction_start(sysdb);
if (ret) {
- goto done;
+ goto fail;
}
in_transaction = true;
/* FIXME: should we move this call outside the transaction to keep the
* transaction as short as possible ? */
status = ctx->ops.getpwnam_r(name, pwd, buffer, buflen, &ret);
+ ret = handle_getpw_result(status, pwd, dom, &del_user);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getpwnam failed [%d]: %s\n", ret, strerror(ret)));
+ goto fail;
+ }
- switch (status) {
- case NSS_STATUS_NOTFOUND:
-
- DEBUG(7, ("User %s not found.\n", name));
- ret = delete_user(tmpctx, sysdb, dom, name);
+ if (del_user) {
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("User %s does not exist (or is invalid) on remote server,"
+ " deleting!\n", name));
+ ret = sysdb_delete_user(sysdb, name, 0);
if (ret) {
- goto done;
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not delete user\n"));
+ goto fail;
}
- break;
+ goto done;
+ }
- case NSS_STATUS_SUCCESS:
+ uid = pwd->pw_uid;
+ memset(buffer, 0, buflen);
- /* uid=0 or gid=0 are invalid values */
- /* also check that the id is in the valid range for this domain */
- if (OUT_OF_ID_RANGE(pwd->pw_uid, dom->id_min, dom->id_max) ||
- OUT_OF_ID_RANGE(pwd->pw_gid, dom->id_min, dom->id_max)) {
-
- DEBUG(2, ("User [%s] filtered out! (id out of range)\n",
- name));
- ret = delete_user(tmpctx, sysdb, dom, name);
- break;
- }
+ /* Canonicalize the username in case it was actually an alias */
+ status = ctx->ops.getpwuid_r(uid, pwd, buffer, buflen, &ret);
+ ret = handle_getpw_result(status, pwd, dom, &del_user);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ ("getpwuid failed [%d]: %s\n", ret, strerror(ret)));
+ goto fail;
+ }
- ret = save_user(sysdb, !dom->case_sensitive, pwd, dom->user_timeout);
+ if (del_user) {
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("User %s does not exist (or is invalid) on remote server,"
+ " deleting!\n", name));
+ ret = sysdb_delete_user(sysdb, name, uid);
if (ret) {
- goto done;
- }
-
- ret = get_initgr_groups_process(tmpctx, ctx, sysdb, dom, pwd);
- if (ret == EOK) {
- ret = sysdb_transaction_commit(sysdb);
- in_transaction = true;
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not delete user\n"));
+ goto fail;
}
- break;
+ goto done;
+ }
- case NSS_STATUS_UNAVAIL:
- /* "remote" backend unavailable. Enter offline mode */
- ret = ENXIO;
- break;
+ ret = save_user(sysdb, !dom->case_sensitive, pwd,
+ name, dom->user_timeout);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not save user\n"));
+ goto fail;
+ }
- default:
- DEBUG(2, ("proxy -> getpwnam_r failed for '%s' <%d>\n",
- name, status));
- ret = EIO;
- break;
+ ret = get_initgr_groups_process(tmpctx, ctx, sysdb, dom, pwd);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_OP_FAILURE, ("Could not process initgroups\n"));
+ goto fail;
}
done:
+ ret = sysdb_transaction_commit(sysdb);
+ if (ret) {
+ DEBUG(SSSDBG_OP_FAILURE, ("Failed to commit transaction\n"));
+ goto fail;
+ }
+ in_transaction = false;
+
+fail:
talloc_zfree(tmpctx);
if (in_transaction) {
sysdb_transaction_cancel(sysdb);
generated by cgit (git 2.34.1) at 2024-12-16 17:56:49 +0000