diff options
| -rw-r--r-- | lib/nss_wrapper/nss_wrapper.c | 123 |
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); } - |