Commit | Line | Data |
---|---|---|
03019e41 | 1 | To use this patch, run these commands for a successful build: |
1fcc420a | 2 | |
03019e41 WD |
3 | patch -p1 <patches/acls.diff |
4 | patch -p1 <patches/adaptec_acl_mods.diff | |
1fcc420a WD |
5 | ./prepare-source |
6 | ./configure --enable-acl-support | |
7 | make | |
8 | ||
af7ee4d8 WD |
9 | Philip Lowman wrote: |
10 | > Attached is a small patch which is meant to be applied to a copy of | |
11 | > rsync which has already been patched with acl support (the acls.diff | |
12 | > file in the patches folder). It allows the preservation of the delete, | |
13 | > chmod, and chown bits which Adaptec has added to XFS on their SnapOS NAS | |
14 | > units. This is nice for backing up files between different NAS units | |
15 | > and preserving all of the Samba ACLs. | |
16 | > | |
17 | > I'm not sure how useful this patch will be because I'm not sure if any | |
18 | > other NAS vendors have standardized on their extensions to POSIX ACLs to | |
19 | > support Samba in the same manner that Adaptec has. FWIW, though, this | |
20 | > will allow you to preserve acls when copying between different Adaptec | |
21 | > based NAS units running SnapOS. | |
22 | ||
23 | I (Wayne) tweaked the patch for style and to avoid using SMB_* constants | |
24 | with literal values were needed. | |
25 | ||
d3832800 WD |
26 | I've also updated it to apply to the updated version of the acls.diff, |
27 | though I don't know if there might be some bits lost in the current | |
28 | algorithm when using the file's mode bits to reconstruct a stripped ACL | |
29 | entry. | |
30 | ||
af7ee4d8 WD |
31 | --- old/acls.c |
32 | +++ new/acls.c | |
03019e41 | 33 | @@ -282,6 +282,9 @@ static BOOL unpack_smb_acl(rsync_acl *ra |
af7ee4d8 | 34 | } |
00188d68 WD |
35 | access = (sys_acl_get_perm(permset, SMB_ACL_READ) ? 4 : 0) |
36 | | (sys_acl_get_perm(permset, SMB_ACL_WRITE) ? 2 : 0) | |
37 | + | (sys_acl_get_perm(permset, SMB_ACL_DELETE) ? 8 : 0) | |
38 | + | (sys_acl_get_perm(permset, SMB_ACL_CHMOD) ? 16 : 0) | |
39 | + | (sys_acl_get_perm(permset, SMB_ACL_CHOWN) ? 32 : 0) | |
40 | | (sys_acl_get_perm(permset, SMB_ACL_EXECUTE) ? 1 : 0); | |
b5abdf47 | 41 | /* continue == done with entry; break == store in temporary ida list */ |
00188d68 | 42 | switch (tag_type) { |
03019e41 | 43 | @@ -376,6 +379,12 @@ static int store_access_in_entry(uchar a |
00188d68 WD |
44 | |
45 | COE( sys_acl_get_permset,(entry, &permset) ); | |
46 | COE( sys_acl_clear_perms,(permset) ); | |
47 | + if (access & 32) | |
48 | + COE( sys_acl_add_perm(permset, SMB_ACL_CHOWN) ); | |
49 | + if (access & 16) | |
50 | + COE( sys_acl_add_perm(permset, SMB_ACL_CHMOD) ); | |
51 | + if (access & 8) | |
52 | + COE( sys_acl_add_perm(permset, SMB_ACL_DELETE) ); | |
53 | if (access & 4) | |
54 | COE( sys_acl_add_perm,(permset, SMB_ACL_READ) ); | |
55 | if (access & 2) | |
03019e41 | 56 | @@ -409,7 +418,7 @@ static BOOL pack_smb_acl(SMB_ACL_T *smb_ |
00188d68 | 57 | |
d3832800 WD |
58 | COE( sys_acl_create_entry,(smb_acl, &entry) ); |
59 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_USER_OBJ) ); | |
60 | - COE2( store_access_in_entry,(racl->user_obj & 7, entry) ); | |
61 | + COE2( store_access_in_entry,(racl->user_obj & 077, entry) ); | |
00188d68 | 62 | |
b5abdf47 WD |
63 | for (ida = racl->users.idas, count = racl->users.count; count--; ida++) { |
64 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
03019e41 | 65 | @@ -420,7 +429,7 @@ static BOOL pack_smb_acl(SMB_ACL_T *smb_ |
d3832800 WD |
66 | |
67 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
68 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_GROUP_OBJ) ); | |
69 | - COE2( store_access_in_entry,(racl->group_obj & 7, entry) ); | |
70 | + COE2( store_access_in_entry,(racl->group_obj & 077, entry) ); | |
71 | ||
b5abdf47 WD |
72 | for (ida = racl->groups.idas, count = racl->groups.count; count--; ida++) { |
73 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
03019e41 | 74 | @@ -430,7 +439,7 @@ static BOOL pack_smb_acl(SMB_ACL_T *smb_ |
b5abdf47 WD |
75 | } |
76 | ||
77 | #ifdef ACLS_NEED_MASK | |
78 | - mask_bits = racl->mask == NO_ENTRY ? racl->group_obj & 7 : racl->mask; | |
79 | + mask_bits = racl->mask == NO_ENTRY ? racl->group_obj & 077 : racl->mask; | |
80 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
81 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_MASK) ); | |
82 | COE2( store_access_in_entry,(mask_bits, entry) ); | |
03019e41 | 83 | @@ -444,7 +453,7 @@ static BOOL pack_smb_acl(SMB_ACL_T *smb_ |
00188d68 | 84 | |
d3832800 WD |
85 | COE( sys_acl_create_entry,(smb_acl, &entry) ); |
86 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_OTHER) ); | |
87 | - COE2( store_access_in_entry,(racl->other & 7, entry) ); | |
88 | + COE2( store_access_in_entry,(racl->other & 077, entry) ); | |
89 | ||
90 | #ifdef DEBUG | |
91 | if (sys_acl_valid(*smb_acl) < 0) | |
03019e41 | 92 | @@ -649,7 +658,7 @@ static void receive_rsync_acl(rsync_acl |
00188d68 WD |
93 | while (count--) { |
94 | char tag = read_byte(f); | |
d3832800 | 95 | uchar access = read_byte(f); |
00188d68 | 96 | - if (access & ~ (4 | 2 | 1)) { |
00188d68 | 97 | + if (access & ~(32 | 16 | 8 | 4 | 2 | 1)) { |
af7ee4d8 | 98 | rprintf(FERROR, "receive_rsync_acl: bogus permset %o\n", |
00188d68 | 99 | access); |
af7ee4d8 | 100 | exit_cleanup(RERR_STREAMIO); |
03019e41 | 101 | @@ -725,7 +734,7 @@ static void receive_rsync_acl(rsync_acl |
b5abdf47 WD |
102 | racl->mask = NO_ENTRY; |
103 | } | |
104 | } else if (racl->mask == NO_ENTRY) /* Must be non-empty with lists. */ | |
d3832800 WD |
105 | - racl->mask = computed_mask_bits | (racl->group_obj & 7); |
106 | + racl->mask = computed_mask_bits | (racl->group_obj & 077); | |
107 | } | |
108 | ||
b5abdf47 | 109 | /* Receive the ACL info the sender has included for this file-list entry. */ |
af7ee4d8 WD |
110 | --- old/smb_acls.h |
111 | +++ new/smb_acls.h | |
112 | @@ -33,6 +33,11 @@ | |
113 | #define SMB_ACL_READ ACL_READ | |
114 | #define SMB_ACL_WRITE ACL_WRITE | |
115 | #define SMB_ACL_EXECUTE ACL_EXECUTE | |
116 | +/* These are custom ACL bits used by Adaptec's modifications | |
117 | + * to XFS on their SnapOS units. */ | |
118 | +#define SMB_ACL_DELETE 0x08 | |
119 | +#define SMB_ACL_CHMOD 0x10 | |
120 | +#define SMB_ACL_CHOWN 0x20 | |
121 | ||
122 | /* Types of ACLs. */ | |
123 | #define SMB_ACL_USER ACL_USER |