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authorRoberto Sassu <roberto.sassu@huawei.com>2022-09-20 09:59:44 +0200
committerAlexei Starovoitov <ast@kernel.org>2022-09-21 17:32:48 -0700
commit90fd8f26edd47942203639bf3a5dde8fa1931a0e (patch)
tree4083a315063beb4cbb69a8f9e449359049c58246
parent51df4865718540f51bb5d3e552c50dc88e1333d6 (diff)
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KEYS: Move KEY_LOOKUP_ to include/linux/key.h and define KEY_LOOKUP_ALL
In preparation for the patch that introduces the bpf_lookup_user_key() eBPF kfunc, move KEY_LOOKUP_ definitions to include/linux/key.h, to be able to validate the kfunc parameters. Add them to enum key_lookup_flag, so that all the current ones and the ones defined in the future are automatically exported through BTF and available to eBPF programs. Also, add KEY_LOOKUP_ALL to the enum, with the logical OR of currently defined flags as value, to facilitate checking whether a variable contains only those flags. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Link: https://lore.kernel.org/r/20220920075951.929132-7-roberto.sassu@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
-rw-r--r--include/linux/key.h6
-rw-r--r--security/keys/internal.h2
2 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/key.h b/include/linux/key.h
index 7febc4881363..d27477faf00d 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -88,6 +88,12 @@ enum key_need_perm {
KEY_DEFER_PERM_CHECK, /* Special: permission check is deferred */
};
+enum key_lookup_flag {
+ KEY_LOOKUP_CREATE = 0x01,
+ KEY_LOOKUP_PARTIAL = 0x02,
+ KEY_LOOKUP_ALL = (KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL),
+};
+
struct seq_file;
struct user_struct;
struct signal_struct;
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 9b9cf3b6fcbb..3c1e7122076b 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -165,8 +165,6 @@ extern struct key *request_key_and_link(struct key_type *type,
extern bool lookup_user_key_possessed(const struct key *key,
const struct key_match_data *match_data);
-#define KEY_LOOKUP_CREATE 0x01
-#define KEY_LOOKUP_PARTIAL 0x02
extern long join_session_keyring(const char *name);
extern void key_change_session_keyring(struct callback_head *twork);