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-rw-r--r--lib/nss_wrapper/nss_wrapper.c123
1 files changed, 104 insertions, 19 deletions
diff --git a/lib/nss_wrapper/nss_wrapper.c b/lib/nss_wrapper/nss_wrapper.c
index 7922b89107..1ac26aa3c6 100644
--- a/lib/nss_wrapper/nss_wrapper.c
+++ b/lib/nss_wrapper/nss_wrapper.c
@@ -139,6 +139,88 @@
#define NWRAP_VERBOSE(args)
#endif
+struct nwrap_ops {
+ const char *name;
+ struct passwd * (*getpwnam)(const char *name);
+ int (*getpwnam_r)(const char *name, struct passwd *pwdst,
+ char *buf, size_t buflen, struct passwd **pwdstp);
+ struct passwd * (*getpwuid)(uid_t uid);
+ int (*getpwuid_r)(uid_t uid, struct passwd *pwdst,
+ char *buf, size_t buflen, struct passwd **pwdstp);
+ void (*setpwent)(void);
+ struct passwd * (*getpwent)(void);
+ int (*getpwent_r)(struct passwd *pwdst, char *buf,
+ size_t buflen, struct passwd **pwdstp);
+ void (*endpwent)(void);
+ int (*initgroups)(const char *user, gid_t group);
+ struct group * (*getgrnam)(const char *name);
+ int (*getgrnam_r)(const char *name, struct group *grdst,
+ char *buf, size_t buflen, struct group **grdstp);
+ struct group * (*getgrgid)(gid_t gid);
+ int (*getgrgid_r)(gid_t gid, struct group *grdst,
+ char *buf, size_t buflen, struct group **grdstp);
+ void (*setgrent)(void);
+ struct group * (*getgrent)(void);
+ int (*getgrent_r)(struct group *grdst, char *buf,
+ size_t buflen, struct group **grdstp);
+ void (*endgrent)(void);
+ int (*getgrouplist)(const char *user, gid_t group, gid_t *groups, int *ngroups);
+};
+
+static struct passwd *nwrap_files_getpwnam(const char *name);
+static int nwrap_files_getpwnam_r(const char *name, struct passwd *pwdst,
+ char *buf, size_t buflen, struct passwd **pwdstp);
+static struct passwd *nwrap_files_getpwuid(uid_t uid);
+static int nwrap_files_getpwuid_r(uid_t uid, struct passwd *pwdst,
+ char *buf, size_t buflen, struct passwd **pwdstp);
+static void nwrap_files_setpwent(void);
+static struct passwd *nwrap_files_getpwent(void);
+static int nwrap_files_getpwent_r(struct passwd *pwdst, char *buf,
+ size_t buflen, struct passwd **pwdstp);
+static void nwrap_files_endpwent(void);
+static int nwrap_files_initgroups(const char *user, gid_t group);
+static struct group *nwrap_files_getgrnam(const char *name);
+static int nwrap_files_getgrnam_r(const char *name, struct group *grdst,
+ char *buf, size_t buflen, struct group **grdstp);
+static struct group *nwrap_files_getgrgid(gid_t gid);
+static int nwrap_files_getgrgid_r(gid_t gid, struct group *grdst,
+ char *buf, size_t buflen, struct group **grdstp);
+static void nwrap_files_setgrent(void);
+static struct group *nwrap_files_getgrent(void);
+static int nwrap_files_getgrent_r(struct group *grdst, char *buf,
+ size_t buflen, struct group **grdstp);
+static void nwrap_files_endgrent(void);
+static int nwrap_files_getgrouplist(const char *user, gid_t group, gid_t *groups, int *ngroups);
+
+struct nwrap_ops nwrap_files_ops = {
+ .name = "files",
+ .getpwnam = nwrap_files_getpwnam,
+ .getpwnam_r = nwrap_files_getpwnam_r,
+ .getpwuid = nwrap_files_getpwuid,
+ .getpwuid_r = nwrap_files_getpwuid_r,
+ .setpwent = nwrap_files_setpwent,
+ .getpwent = nwrap_files_getpwent,
+ .getpwent_r = nwrap_files_getpwent_r,
+ .endpwent = nwrap_files_endpwent,
+ .initgroups = nwrap_files_initgroups,
+ .getgrnam = nwrap_files_getgrnam,
+ .getgrnam_r = nwrap_files_getgrnam_r,
+ .getgrgid = nwrap_files_getgrgid,
+ .getgrgid_r = nwrap_files_getgrgid_r,
+ .setgrent = nwrap_files_setgrent,
+ .getgrent = nwrap_files_getgrent,
+ .getgrent_r = nwrap_files_getgrent_r,
+ .endgrent = nwrap_files_endgrent,
+ .getgrouplist = nwrap_files_getgrouplist
+};
+
+struct nwrap_main {
+ struct nwrap_ops *ops;
+};
+
+struct nwrap_main *nwrap_main_global;
+struct nwrap_main __nwrap_main_global;
+
struct nwrap_cache {
const char *path;
int fd;
@@ -184,6 +266,10 @@ static void nwrap_init(void)
if (initialized) return;
initialized = true;
+ nwrap_main_global = &__nwrap_main_global;
+
+ nwrap_main_global->ops = &nwrap_files_ops;
+
nwrap_pw_global.cache = &__nwrap_cache_pw;
nwrap_pw_global.cache->path = getenv("NSS_WRAPPER_PASSWD");
@@ -807,7 +893,7 @@ _PUBLIC_ struct passwd *nwrap_getpwnam(const char *name)
return real_getpwnam(name);
}
- return nwrap_files_getpwnam(name);
+ return nwrap_main_global->ops->getpwnam(name);
}
static int nwrap_files_getpwnam_r(const char *name, struct passwd *pwdst,
@@ -833,7 +919,7 @@ _PUBLIC_ int nwrap_getpwnam_r(const char *name, struct passwd *pwdst,
return real_getpwnam_r(name, pwdst, buf, buflen, pwdstp);
}
- return nwrap_files_getpwnam_r(name, pwdst, buf, buflen, pwdstp);
+ return nwrap_main_global->ops->getpwnam_r(name, pwdst, buf, buflen, pwdstp);
}
static struct passwd *nwrap_files_getpwuid(uid_t uid)
@@ -865,7 +951,7 @@ _PUBLIC_ struct passwd *nwrap_getpwuid(uid_t uid)
return real_getpwuid(uid);
}
- return nwrap_files_getpwuid(uid);
+ return nwrap_main_global->ops->getpwuid(uid);
}
static int nwrap_files_getpwuid_r(uid_t uid, struct passwd *pwdst,
@@ -891,7 +977,7 @@ _PUBLIC_ int nwrap_getpwuid_r(uid_t uid, struct passwd *pwdst,
return real_getpwuid_r(uid, pwdst, buf, buflen, pwdstp);
}
- return nwrap_files_getpwuid_r(uid, pwdst, buf, buflen, pwdstp);
+ return nwrap_main_global->ops->getpwuid_r(uid, pwdst, buf, buflen, pwdstp);
}
/* user enum functions */
@@ -907,7 +993,7 @@ _PUBLIC_ void nwrap_setpwent(void)
return;
}
- nwrap_files_setpwent();
+ nwrap_main_global->ops->setpwent();
}
static struct passwd *nwrap_files_getpwent(void)
@@ -937,7 +1023,7 @@ _PUBLIC_ struct passwd *nwrap_getpwent(void)
return real_getpwent();
}
- return nwrap_files_getpwent();
+ return nwrap_main_global->ops->getpwent();
}
static int nwrap_files_getpwent_r(struct passwd *pwdst, char *buf,
@@ -978,7 +1064,7 @@ _PUBLIC_ int nwrap_getpwent_r(struct passwd *pwdst, char *buf,
#endif
}
- return nwrap_files_getpwent_r(pwdst, buf, buflen, pwdstp);
+ return nwrap_main_global->ops->getpwent_r(pwdst, buf, buflen, pwdstp);
}
static void nwrap_files_endpwent(void)
@@ -993,7 +1079,7 @@ _PUBLIC_ void nwrap_endpwent(void)
return;
}
- nwrap_files_endpwent();
+ nwrap_main_global->ops->endpwent();
}
/* misc functions */
@@ -1009,7 +1095,7 @@ _PUBLIC_ int nwrap_initgroups(const char *user, gid_t group)
return real_initgroups(user, group);
}
- return nwrap_files_initgroups(user, group);
+ return nwrap_main_global->ops->initgroups(user, group);
}
/* group functions */
@@ -1042,7 +1128,7 @@ _PUBLIC_ struct group *nwrap_getgrnam(const char *name)
return real_getgrnam(name);
}
- return nwrap_files_getgrnam(name);
+ return nwrap_main_global->ops->getgrnam(name);
}
static int nwrap_files_getgrnam_r(const char *name, struct group *grdst,
@@ -1068,7 +1154,7 @@ _PUBLIC_ int nwrap_getgrnam_r(const char *name, struct group *grdst,
return real_getgrnam_r(name, grdst, buf, buflen, grdstp);
}
- return nwrap_files_getgrnam_r(name, grdst, buf, buflen, grdstp);
+ return nwrap_main_global->ops->getgrnam_r(name, grdst, buf, buflen, grdstp);
}
static struct group *nwrap_files_getgrgid(gid_t gid)
@@ -1100,7 +1186,7 @@ _PUBLIC_ struct group *nwrap_getgrgid(gid_t gid)
return real_getgrgid(gid);
}
- return nwrap_files_getgrgid(gid);
+ return nwrap_main_global->ops->getgrgid(gid);
}
static int nwrap_files_getgrgid_r(gid_t gid, struct group *grdst,
@@ -1128,7 +1214,7 @@ _PUBLIC_ int nwrap_getgrgid_r(gid_t gid, struct group *grdst,
return real_getgrgid_r(gid, grdst, buf, buflen, grdstp);
}
- return nwrap_files_getgrgid_r(gid, grdst, buf, buflen, grdstp);
+ return nwrap_main_global->ops->getgrgid_r(gid, grdst, buf, buflen, grdstp);
}
/* group enum functions */
@@ -1144,7 +1230,7 @@ _PUBLIC_ void nwrap_setgrent(void)
return;
}
- nwrap_files_setgrent();
+ nwrap_main_global->ops->setgrent();
}
static struct group *nwrap_files_getgrent(void)
@@ -1174,7 +1260,7 @@ _PUBLIC_ struct group *nwrap_getgrent(void)
return real_getgrent();
}
- return nwrap_files_getgrent();
+ return nwrap_main_global->ops->getgrent();
}
static int nwrap_files_getgrent_r(struct group *grdst, char *buf,
@@ -1215,7 +1301,7 @@ _PUBLIC_ int nwrap_getgrent_r(struct group *grdst, char *buf,
#endif
}
- return nwrap_files_getgrent_r(grdst, buf, buflen, grdstp);
+ return nwrap_main_global->ops->getgrent_r(grdst, buf, buflen, grdstp);
}
static void nwrap_files_endgrent(void)
@@ -1230,7 +1316,7 @@ _PUBLIC_ void nwrap_endgrent(void)
return;
}
- nwrap_files_endgrent();
+ nwrap_main_global->ops->endgrent();
}
static int nwrap_files_getgrouplist(const char *user, gid_t group, gid_t *groups, int *ngroups)
@@ -1307,6 +1393,5 @@ _PUBLIC_ int nwrap_getgrouplist(const char *user, gid_t group, gid_t *groups, in
return real_getgrouplist(user, group, groups, ngroups);
}
- return nwrap_files_getgrouplist(user, group, groups, ngroups);
+ return nwrap_main_global->ops->getgrouplist(user, group, groups, ngroups);
}
-
generated by cgit (git 2.34.1) at 2024-12-26 06:07:52 +0000