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| author | John Johansen <john.johansen@canonical.com> | 2022-09-06 06:47:36 +0300 |
|---|---|---|
| committer | John Johansen <john.johansen@canonical.com> | 2022-10-04 00:49:04 +0300 |
| commit | 1ad22fcc4d0d2fb2e0f35aed555a86d016d5e590 (patch) | |
| tree | 5cf7b9f785d46441d3c184a3097659eb7c2574ac /security/apparmor/resource.c | |
| parent | 217af7e2f4deb629aaa49622685ccfee923898ca (diff) | |
| download | linux-1ad22fcc4d0d2fb2e0f35aed555a86d016d5e590.tar.xz | |
apparmor: rework profile->rules to be a list
Convert profile->rules to a list as the next step towards supporting
multiple rulesets in a profile. For this step only support a single
list entry item. The logic for iterating the list will come as a
separate step.
Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security/apparmor/resource.c')
| -rw-r--r-- | security/apparmor/resource.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/security/apparmor/resource.c b/security/apparmor/resource.c index f28026804d13..ed543f4edfd9 100644 --- a/security/apparmor/resource.c +++ b/security/apparmor/resource.c @@ -82,7 +82,8 @@ int aa_map_resource(int resource) static int profile_setrlimit(struct aa_profile *profile, unsigned int resource, struct rlimit *new_rlim) { - struct aa_ruleset *rules = &profile->rules; + struct aa_ruleset *rules = list_first_entry(&profile->rules, + typeof(*rules), list); int e = 0; if (rules->rlimits.mask & (1 << resource) && new_rlim->rlim_max > @@ -154,12 +155,15 @@ void __aa_transition_rlimits(struct aa_label *old_l, struct aa_label *new_l) * to the lesser of the tasks hard limit and the init tasks soft limit */ label_for_each_confined(i, old_l, old) { - if (old->rules.rlimits.mask) { + struct aa_ruleset *rules = list_first_entry(&old->rules, + typeof(*rules), + list); + if (rules->rlimits.mask) { int j; for (j = 0, mask = 1; j < RLIM_NLIMITS; j++, mask <<= 1) { - if (old->rules.rlimits.mask & mask) { + if (rules->rlimits.mask & mask) { rlim = current->signal->rlim + j; initrlim = init_task.signal->rlim + j; rlim->rlim_cur = min(rlim->rlim_max, @@ -171,17 +175,20 @@ void __aa_transition_rlimits(struct aa_label *old_l, struct aa_label *new_l) /* set any new hard limits as dictated by the new profile */ label_for_each_confined(i, new_l, new) { + struct aa_ruleset *rules = list_first_entry(&new->rules, + typeof(*rules), + list); int j; - if (!new->rules.rlimits.mask) + if (!rules->rlimits.mask) continue; for (j = 0, mask = 1; j < RLIM_NLIMITS; j++, mask <<= 1) { - if (!(new->rules.rlimits.mask & mask)) + if (!(rules->rlimits.mask & mask)) continue; rlim = current->signal->rlim + j; rlim->rlim_max = min(rlim->rlim_max, - new->rules.rlimits.limits[j].rlim_max); + rules->rlimits.limits[j].rlim_max); /* soft limit should not exceed hard limit */ rlim->rlim_cur = min(rlim->rlim_cur, rlim->rlim_max); } |