linux-kernel - [RFC PATCH 15/19] btrfs: allow writing compressed, encrypted, inline extents

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  9 Jan 2019 01:26:57 +0000
From:   Mark Harmstone <mark@...mstone.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     mark@...mstone.com, Chris Mason <clm@...com>,
        Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH 15/19] btrfs: allow writing compressed, encrypted, inline extents

Signed-off-by: Mark Harmstone <mark@...mstone.com>
---
 fs/btrfs/inode.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 61481833f5e4..f8bc7174f7e3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -219,6 +219,22 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
 	if (compress_type != BTRFS_COMPRESS_NONE) {
 		struct page *cpage;
 		int i = 0;
+
+		if (enc_key) {
+			struct btrfs_file_extent_inline_enc *eienc;
+
+			eienc = (struct btrfs_file_extent_inline_enc *)ptr;
+
+			btrfs_set_file_extent_inline_enc_key_number(leaf,
+						eienc, enc_key->key_number);
+
+			write_eb_member(leaf, eienc,
+					struct btrfs_file_extent_inline_enc,
+					iv, iv);
+
+			ptr += sizeof(struct btrfs_file_extent_inline_enc);
+		}
+
 		while (compressed_size > 0) {
 			cpage = compressed_pages[i];
 			cur_size = min_t(unsigned long, compressed_size,
-- 
2.19.2