From 7ef93ffccd55fb0ba000ed16ef6a81cd7dee07b5 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 1 Jun 2022 22:08:46 -0500 Subject: [PATCH] cifs: version operations for smb20 unneeded when legacy support disabled We should not be including unused smb20 specific code when legacy support is disabled (CONFIG_CIFS_ALLOW_INSECURE_LEGACY turned off). For example smb2_operations and smb2_values aren't used in that case. Over time we can move more and more SMB1/CIFS and SMB2.0 code into the insecure legacy ifdefs Reviewed-by: Ronnie Sahlberg Signed-off-by: Steve French --- fs/cifs/cifsglob.h | 4 +++- fs/cifs/smb2ops.c | 7 ++++++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index d589e687611d..f873379066c7 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1963,11 +1963,13 @@ extern mempool_t *cifs_mid_poolp; /* Operations for different SMB versions */ #define SMB1_VERSION_STRING "1.0" +#define SMB20_VERSION_STRING "2.0" +#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY extern struct smb_version_operations smb1_operations; extern struct smb_version_values smb1_values; -#define SMB20_VERSION_STRING "2.0" extern struct smb_version_operations smb20_operations; extern struct smb_version_values smb20_values; +#endif /* CIFS_ALLOW_INSECURE_LEGACY */ #define SMB21_VERSION_STRING "2.1" extern struct smb_version_operations smb21_operations; extern struct smb_version_values smb21_values; diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 03ab28c341c4..98a76fa791c0 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -4345,11 +4345,13 @@ smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, } } +#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY static bool smb2_is_read_op(__u32 oplock) { return oplock == SMB2_OPLOCK_LEVEL_II; } +#endif /* CIFS_ALLOW_INSECURE_LEGACY */ static bool smb21_is_read_op(__u32 oplock) @@ -5448,7 +5450,7 @@ smb2_make_node(unsigned int xid, struct inode *inode, return rc; } - +#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY struct smb_version_operations smb20_operations = { .compare_fids = smb2_compare_fids, .setup_request = smb2_setup_request, @@ -5547,6 +5549,7 @@ struct smb_version_operations smb20_operations = { .is_status_io_timeout = smb2_is_status_io_timeout, .is_network_name_deleted = smb2_is_network_name_deleted, }; +#endif /* CIFS_ALLOW_INSECURE_LEGACY */ struct smb_version_operations smb21_operations = { .compare_fids = smb2_compare_fids, @@ -5878,6 +5881,7 @@ struct smb_version_operations smb311_operations = { .is_network_name_deleted = smb2_is_network_name_deleted, }; +#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY struct smb_version_values smb20_values = { .version_string = SMB20_VERSION_STRING, .protocol_id = SMB20_PROT_ID, @@ -5898,6 +5902,7 @@ struct smb_version_values smb20_values = { .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, .create_lease_size = sizeof(struct create_lease), }; +#endif /* ALLOW_INSECURE_LEGACY */ struct smb_version_values smb21_values = { .version_string = SMB21_VERSION_STRING, -- 2.34.1