From: Mikko Ylinen <mikko.ylinen@linux.intel.com>
To: kpsingh@kernel.org
Cc: bpf@vger.kernel.org, daniel@iogearbox.net, kpsingh@google.com,
linux-kernel@vger.kernel.org, mikko.ylinen@linux.intel.com
Subject: [PATCH v2] bpf: Drop disabled LSM hooks from the sleepable set
Date: Mon, 25 Jan 2021 08:39:36 +0200 [thread overview]
Message-ID: <20210125063936.89365-1-mikko.ylinen@linux.intel.com> (raw)
In-Reply-To: <CACYkzJ5i6DNxY3D3SqiO_LO2HBbA-EgPFdK8ZBcFNmTVWweucg@mail.gmail.com>
Some networking and keys LSM hooks are conditionally enabled
and when building the new sleepable BPF LSM hooks with those
LSM hooks disabled, the following build error occurs:
BTFIDS vmlinux
FAILED unresolved symbol bpf_lsm_socket_socketpair
To fix the error, conditionally add the relevant networking/keys
LSM hooks to the sleepable set.
Fixes: 423f16108c9d8 ("bpf: Augment the set of sleepable LSM hooks")
Signed-off-by: Mikko Ylinen <mikko.ylinen@linux.intel.com>
---
kernel/bpf/bpf_lsm.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c
index 70e5e0b6d69d..1622a44d1617 100644
--- a/kernel/bpf/bpf_lsm.c
+++ b/kernel/bpf/bpf_lsm.c
@@ -149,7 +149,11 @@ BTF_ID(func, bpf_lsm_file_ioctl)
BTF_ID(func, bpf_lsm_file_lock)
BTF_ID(func, bpf_lsm_file_open)
BTF_ID(func, bpf_lsm_file_receive)
+
+#ifdef CONFIG_SECURITY_NETWORK
BTF_ID(func, bpf_lsm_inet_conn_established)
+#endif /* CONFIG_SECURITY_NETWORK */
+
BTF_ID(func, bpf_lsm_inode_create)
BTF_ID(func, bpf_lsm_inode_free_security)
BTF_ID(func, bpf_lsm_inode_getattr)
@@ -166,7 +170,11 @@ BTF_ID(func, bpf_lsm_inode_symlink)
BTF_ID(func, bpf_lsm_inode_unlink)
BTF_ID(func, bpf_lsm_kernel_module_request)
BTF_ID(func, bpf_lsm_kernfs_init_security)
+
+#ifdef CONFIG_KEYS
BTF_ID(func, bpf_lsm_key_free)
+#endif /* CONFIG_KEYS */
+
BTF_ID(func, bpf_lsm_mmap_file)
BTF_ID(func, bpf_lsm_netlink_send)
BTF_ID(func, bpf_lsm_path_notify)
@@ -181,6 +189,8 @@ BTF_ID(func, bpf_lsm_sb_show_options)
BTF_ID(func, bpf_lsm_sb_statfs)
BTF_ID(func, bpf_lsm_sb_umount)
BTF_ID(func, bpf_lsm_settime)
+
+#ifdef CONFIG_SECURITY_NETWORK
BTF_ID(func, bpf_lsm_socket_accept)
BTF_ID(func, bpf_lsm_socket_bind)
BTF_ID(func, bpf_lsm_socket_connect)
@@ -195,6 +205,8 @@ BTF_ID(func, bpf_lsm_socket_recvmsg)
BTF_ID(func, bpf_lsm_socket_sendmsg)
BTF_ID(func, bpf_lsm_socket_shutdown)
BTF_ID(func, bpf_lsm_socket_socketpair)
+#endif /* CONFIG_SECURITY_NETWORK */
+
BTF_ID(func, bpf_lsm_syslog)
BTF_ID(func, bpf_lsm_task_alloc)
BTF_ID(func, bpf_lsm_task_getsecid)
--
2.17.1
next prev parent reply other threads:[~2021-01-25 7:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 12:30 [PATCH] bpf: Drop disabled LSM hooks from the sleepable set Mikko Ylinen
2021-01-22 22:33 ` KP Singh
2021-01-22 23:50 ` KP Singh
2021-01-25 6:39 ` Mikko Ylinen [this message]
2021-01-25 17:45 ` [PATCH v2] " KP Singh
2021-01-26 16:20 ` patchwork-bot+netdevbpf
2021-01-25 6:55 ` [PATCH] " Mikko Ylinen
2021-01-25 17:49 ` KP Singh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210125063936.89365-1-mikko.ylinen@linux.intel.com \
--to=mikko.ylinen@linux.intel.com \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=kpsingh@google.com \
--cc=kpsingh@kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).