Commit | Line | Data |
---|---|---|
af7ee4d8 WD |
1 | Depends-On-Patch: acls.diff |
2 | ||
1fcc420a WD |
3 | After applying the above patch and this one, run these commands for a |
4 | successful build: | |
5 | ||
6 | ./prepare-source | |
7 | ./configure --enable-acl-support | |
8 | make | |
9 | ||
af7ee4d8 WD |
10 | Philip Lowman wrote: |
11 | > Attached is a small patch which is meant to be applied to a copy of | |
12 | > rsync which has already been patched with acl support (the acls.diff | |
13 | > file in the patches folder). It allows the preservation of the delete, | |
14 | > chmod, and chown bits which Adaptec has added to XFS on their SnapOS NAS | |
15 | > units. This is nice for backing up files between different NAS units | |
16 | > and preserving all of the Samba ACLs. | |
17 | > | |
18 | > I'm not sure how useful this patch will be because I'm not sure if any | |
19 | > other NAS vendors have standardized on their extensions to POSIX ACLs to | |
20 | > support Samba in the same manner that Adaptec has. FWIW, though, this | |
21 | > will allow you to preserve acls when copying between different Adaptec | |
22 | > based NAS units running SnapOS. | |
23 | ||
24 | I (Wayne) tweaked the patch for style and to avoid using SMB_* constants | |
25 | with literal values were needed. | |
26 | ||
27 | --- old/acls.c | |
28 | +++ new/acls.c | |
00188d68 WD |
29 | @@ -30,9 +30,11 @@ extern int am_root; |
30 | extern int dry_run; | |
31 | extern int orig_umask; | |
32 | ||
33 | +typedef unsigned short abits; | |
34 | + | |
35 | typedef struct { | |
36 | id_t id; | |
37 | - uchar access; | |
38 | + abits access; | |
39 | } id_access; | |
40 | ||
41 | typedef struct { | |
42 | @@ -41,15 +43,15 @@ typedef struct { | |
43 | id_access *idas; | |
44 | } ida_list; | |
45 | ||
46 | -#define NO_ENTRY ((uchar)0x80) | |
47 | +#define NO_ENTRY ((abits)0x8000) | |
48 | typedef struct { | |
49 | ida_list users; | |
50 | ida_list groups; | |
51 | /* These will be NO_ENTRY if there's no such entry. */ | |
52 | - uchar user_obj; | |
53 | - uchar group_obj; | |
54 | - uchar mask; | |
55 | - uchar other; | |
56 | + abits user_obj; | |
57 | + abits group_obj; | |
58 | + abits mask; | |
59 | + abits other; | |
60 | } rsync_acl; | |
61 | ||
62 | static const rsync_acl rsync_acl_initializer = | |
63 | @@ -148,7 +150,7 @@ static BOOL unpack_smb_acl(rsync_acl *ra | |
64 | rc = sys_acl_get_entry(sacl, SMB_ACL_NEXT_ENTRY, &entry)) { | |
65 | SMB_ACL_TAG_T tag_type; | |
66 | SMB_ACL_PERMSET_T permset; | |
67 | - uchar access; | |
68 | + abits access; | |
69 | void *qualifier; | |
70 | id_access *ida; | |
71 | ida_list *idal; | |
72 | @@ -162,6 +164,9 @@ static BOOL unpack_smb_acl(rsync_acl *ra | |
af7ee4d8 | 73 | } |
00188d68 WD |
74 | access = (sys_acl_get_perm(permset, SMB_ACL_READ) ? 4 : 0) |
75 | | (sys_acl_get_perm(permset, SMB_ACL_WRITE) ? 2 : 0) | |
76 | + | (sys_acl_get_perm(permset, SMB_ACL_DELETE) ? 8 : 0) | |
77 | + | (sys_acl_get_perm(permset, SMB_ACL_CHMOD) ? 16 : 0) | |
78 | + | (sys_acl_get_perm(permset, SMB_ACL_CHOWN) ? 32 : 0) | |
79 | | (sys_acl_get_perm(permset, SMB_ACL_EXECUTE) ? 1 : 0); | |
80 | /* continue == done with entry; break == store in given idal */ | |
81 | switch (tag_type) { | |
82 | @@ -559,13 +564,19 @@ static void expand_smb_acl_list(smb_acl_ | |
83 | #define COE(func,args) CALL_OR_ERROR(func,args,#func) | |
84 | #define COE2(func,args) CALL_OR_ERROR(func,args,NULL) | |
85 | ||
86 | -static int store_access_in_entry(uchar access, SMB_ACL_ENTRY_T entry) | |
87 | +static int store_access_in_entry(abits access, SMB_ACL_ENTRY_T entry) | |
88 | { | |
89 | const char *errfun = NULL; | |
90 | SMB_ACL_PERMSET_T permset; | |
91 | ||
92 | COE( sys_acl_get_permset,(entry, &permset) ); | |
93 | COE( sys_acl_clear_perms,(permset) ); | |
94 | + if (access & 32) | |
95 | + COE( sys_acl_add_perm(permset, SMB_ACL_CHOWN) ); | |
96 | + if (access & 16) | |
97 | + COE( sys_acl_add_perm(permset, SMB_ACL_CHMOD) ); | |
98 | + if (access & 8) | |
99 | + COE( sys_acl_add_perm(permset, SMB_ACL_DELETE) ); | |
100 | if (access & 4) | |
101 | COE( sys_acl_add_perm,(permset, SMB_ACL_READ) ); | |
102 | if (access & 2) | |
103 | @@ -645,7 +656,7 @@ static BOOL pack_smb_acl(SMB_ACL_T *smb_ | |
104 | return False; | |
105 | } | |
106 | ||
107 | -static mode_t change_sacl_perms(SMB_ACL_T sacl, uchar mask, mode_t old_mode, mode_t mode) | |
108 | +static mode_t change_sacl_perms(SMB_ACL_T sacl, abits mask, mode_t old_mode, mode_t mode) | |
109 | { | |
110 | SMB_ACL_ENTRY_T entry; | |
111 | int group_id = mask != NO_ENTRY ? SMB_ACL_MASK : SMB_ACL_GROUP_OBJ; | |
112 | @@ -696,7 +707,7 @@ static mode_t change_sacl_perms(SMB_ACL_ | |
113 | ||
114 | static void receive_rsync_acl(rsync_acl *racl, int f) | |
115 | { | |
116 | - uchar computed_mask_bits = 0; | |
117 | + abits computed_mask_bits = 0; | |
118 | ida_list *idal = NULL; | |
119 | id_access *ida; | |
120 | size_t count; | |
121 | @@ -708,8 +719,8 @@ static void receive_rsync_acl(rsync_acl | |
122 | ||
123 | while (count--) { | |
124 | char tag = read_byte(f); | |
125 | - uchar access = read_byte(f); | |
126 | - if (access & ~ (4 | 2 | 1)) { | |
127 | + abits access = read_byte(f); | |
128 | + if (access & ~(32 | 16 | 8 | 4 | 2 | 1)) { | |
af7ee4d8 | 129 | rprintf(FERROR, "receive_rsync_acl: bogus permset %o\n", |
00188d68 | 130 | access); |
af7ee4d8 WD |
131 | exit_cleanup(RERR_STREAMIO); |
132 | --- old/smb_acls.h | |
133 | +++ new/smb_acls.h | |
134 | @@ -33,6 +33,11 @@ | |
135 | #define SMB_ACL_READ ACL_READ | |
136 | #define SMB_ACL_WRITE ACL_WRITE | |
137 | #define SMB_ACL_EXECUTE ACL_EXECUTE | |
138 | +/* These are custom ACL bits used by Adaptec's modifications | |
139 | + * to XFS on their SnapOS units. */ | |
140 | +#define SMB_ACL_DELETE 0x08 | |
141 | +#define SMB_ACL_CHMOD 0x10 | |
142 | +#define SMB_ACL_CHOWN 0x20 | |
143 | ||
144 | /* Types of ACLs. */ | |
145 | #define SMB_ACL_USER ACL_USER |