diff options
| author | Djalal Harouni <tixxdz@opendz.org> | 2016-11-02 22:42:40 +0100 |
|---|---|---|
| committer | Djalal Harouni <tixxdz@opendz.org> | 2016-11-03 08:36:53 +0100 |
| commit | cdc5d5c55e58ff9eeb6b2258c9fc3a416ee8b53f (patch) | |
| tree | 34472dabf0e17435c5acd98170efc71a32918da8 /src | |
| parent | b2c82a7f2f7c8ae426a9208fb79c5abbd5e3181c (diff) | |
core: intialize user aux groups and SupplementaryGroups= when DynamicUser= is set
Make sure that when DynamicUser= is set that we intialize the user
supplementary groups and that we also support SupplementaryGroups=
Fixes: https://github.com/systemd/systemd/issues/4539
Thanks Evgeny Vereshchagin (@evverx)
Diffstat (limited to 'src')
| -rw-r--r-- | src/core/execute.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/src/core/execute.c b/src/core/execute.c index 3f053602b5..f13ca30395 100644 --- a/src/core/execute.c +++ b/src/core/execute.c @@ -773,11 +773,9 @@ static int get_fixed_group(const ExecContext *c, const char **group, gid_t *gid) return 0; } -static int get_fixed_supplementary_groups(const ExecContext *c, - const char *user, - const char *group, - gid_t gid, - gid_t **supplementary_gids, int *ngids) { +static int get_supplementary_groups(const ExecContext *c, const char *user, + const char *group, gid_t gid, + gid_t **supplementary_gids, int *ngids) { char **i; int r, k = 0; int ngroups_max; @@ -790,8 +788,8 @@ static int get_fixed_supplementary_groups(const ExecContext *c, /* * If user is given, then lookup GID and supplementary groups list. * We avoid NSS lookups for gid=0. Also we have to initialize groups - * as early as possible so we keep the list of supplementary groups - * of the caller. + * here and as early as possible so we keep the list of supplementary + * groups of the caller. */ if (user && gid_is_valid(gid) && gid != 0) { /* First step, initialize groups from /etc/groups */ @@ -2347,13 +2345,14 @@ static int exec_child( *exit_status = EXIT_GROUP; return r; } + } - r = get_fixed_supplementary_groups(context, username, groupname, - gid, &supplementary_gids, &ngids); - if (r < 0) { - *exit_status = EXIT_GROUP; - return r; - } + /* Initialize user supplementary groups and get SupplementaryGroups= ones */ + r = get_supplementary_groups(context, username, groupname, gid, + &supplementary_gids, &ngids); + if (r < 0) { + *exit_status = EXIT_GROUP; + return r; } r = send_user_lookup(unit, user_lookup_fd, uid, gid); |