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libzfs_core_compat.c (248461) libzfs_core_compat.c (248498)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

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28#include "libzfs_core_compat.h"
29
30extern int zfs_ioctl_version;
31
32int
33lzc_compat_pre(zfs_cmd_t *zc, zfs_ioc_t *ioc, nvlist_t **source)
34{
35 nvlist_t *nvl = NULL;
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

--- 19 unchanged lines hidden (view full) ---

28#include "libzfs_core_compat.h"
29
30extern int zfs_ioctl_version;
31
32int
33lzc_compat_pre(zfs_cmd_t *zc, zfs_ioc_t *ioc, nvlist_t **source)
34{
35 nvlist_t *nvl = NULL;
36 nvpair_t *pair;
37 char *buf;
36 nvpair_t *pair, *hpair;
37 char *buf, *val;
38 zfs_ioc_t vecnum;
39 uint32_t type32;
38 zfs_ioc_t vecnum;
39 uint32_t type32;
40 int32_t cleanup_fd;
40 int error = 0;
41 int pos;
42
43 if (zfs_ioctl_version >= ZFS_IOCVER_LZC)
44 return (0);
45
46 vecnum = *ioc;
47

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63 nvl = fnvlist_lookup_nvlist(*source, "snaps");
64 pair = nvlist_next_nvpair(nvl, NULL);
65 if (pair != NULL) {
66 buf = nvpair_name(pair);
67 pos = strcspn(buf, "@");
68 strlcpy(zc->zc_name, buf, pos + 1);
69 strlcpy(zc->zc_value, buf + pos + 1, MAXPATHLEN);
70 } else
41 int error = 0;
42 int pos;
43
44 if (zfs_ioctl_version >= ZFS_IOCVER_LZC)
45 return (0);
46
47 vecnum = *ioc;
48

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64 nvl = fnvlist_lookup_nvlist(*source, "snaps");
65 pair = nvlist_next_nvpair(nvl, NULL);
66 if (pair != NULL) {
67 buf = nvpair_name(pair);
68 pos = strcspn(buf, "@");
69 strlcpy(zc->zc_name, buf, pos + 1);
70 strlcpy(zc->zc_value, buf + pos + 1, MAXPATHLEN);
71 } else
71 error = EOPNOTSUPP;
72 error = EINVAL;
72 /* old kernel cannot create multiple snapshots */
73 if (!error && nvlist_next_nvpair(nvl, pair) != NULL)
74 error = EOPNOTSUPP;
75 nvlist_free(nvl);
76 nvl = NULL;
77 nvlist_lookup_nvlist(*source, "props", &nvl);
78 *source = nvl;
79 break;
80 case ZFS_IOC_SPACE_SNAPS:
81 buf = fnvlist_lookup_string(*source, "firstsnap");
82 strlcpy(zc->zc_value, buf, MAXPATHLEN);
83 break;
84 case ZFS_IOC_DESTROY_SNAPS:
85 nvl = fnvlist_lookup_nvlist(*source, "snaps");
86 pair = nvlist_next_nvpair(nvl, NULL);
87 if (pair != NULL) {
88 buf = nvpair_name(pair);
89 pos = strcspn(buf, "@");
90 strlcpy(zc->zc_name, buf, pos + 1);
73 /* old kernel cannot create multiple snapshots */
74 if (!error && nvlist_next_nvpair(nvl, pair) != NULL)
75 error = EOPNOTSUPP;
76 nvlist_free(nvl);
77 nvl = NULL;
78 nvlist_lookup_nvlist(*source, "props", &nvl);
79 *source = nvl;
80 break;
81 case ZFS_IOC_SPACE_SNAPS:
82 buf = fnvlist_lookup_string(*source, "firstsnap");
83 strlcpy(zc->zc_value, buf, MAXPATHLEN);
84 break;
85 case ZFS_IOC_DESTROY_SNAPS:
86 nvl = fnvlist_lookup_nvlist(*source, "snaps");
87 pair = nvlist_next_nvpair(nvl, NULL);
88 if (pair != NULL) {
89 buf = nvpair_name(pair);
90 pos = strcspn(buf, "@");
91 strlcpy(zc->zc_name, buf, pos + 1);
91 }
92 } else
93 error = EINVAL;
94 /* old kernel cannot atomically destroy multiple snaps */
95 if (!error && nvlist_next_nvpair(nvl, pair) != NULL)
96 error = EOPNOTSUPP;
92 *source = nvl;
93 break;
97 *source = nvl;
98 break;
99 case ZFS_IOC_HOLD:
100 nvl = fnvlist_lookup_nvlist(*source, "holds");
101 pair = nvlist_next_nvpair(nvl, NULL);
102 if (pair != NULL) {
103 buf = nvpair_name(pair);
104 pos = strcspn(buf, "@");
105 strlcpy(zc->zc_name, buf, pos + 1);
106 strlcpy(zc->zc_value, buf + pos + 1, MAXPATHLEN);
107 if (nvpair_value_string(pair, &val) == 0)
108 strlcpy(zc->zc_string, val, MAXNAMELEN);
109 else
110 error = EINVAL;
111 } else
112 error = EINVAL;
113 /* old kernel cannot atomically create multiple holds */
114 if (!error && nvlist_next_nvpair(nvl, pair) != NULL)
115 error = EOPNOTSUPP;
116 nvlist_free(nvl);
117 if (nvlist_lookup_int32(*source, "cleanup_fd",
118 &cleanup_fd) == 0)
119 zc->zc_cleanup_fd = cleanup_fd;
120 else
121 zc->zc_cleanup_fd = -1;
122 break;
123 case ZFS_IOC_RELEASE:
124 pair = nvlist_next_nvpair(*source, NULL);
125 if (pair != NULL) {
126 buf = nvpair_name(pair);
127 pos = strcspn(buf, "@");
128 strlcpy(zc->zc_name, buf, pos + 1);
129 strlcpy(zc->zc_value, buf + pos + 1, MAXPATHLEN);
130 if (nvpair_value_nvlist(pair, &nvl) == 0) {
131 hpair = nvlist_next_nvpair(nvl, NULL);
132 if (hpair != NULL)
133 strlcpy(zc->zc_string,
134 nvpair_name(hpair), MAXNAMELEN);
135 else
136 error = EINVAL;
137 if (!error && nvlist_next_nvpair(nvl,
138 hpair) != NULL)
139 error = EOPNOTSUPP;
140 } else
141 error = EINVAL;
142 } else
143 error = EINVAL;
144 /* old kernel cannot atomically release multiple holds */
145 if (!error && nvlist_next_nvpair(nvl, pair) != NULL)
146 error = EOPNOTSUPP;
147 break;
94 }
95
96 return (error);
97}
98
99void
100lzc_compat_post(zfs_cmd_t *zc, const zfs_ioc_t ioc)
101{

--- 34 unchanged lines hidden --- 		148 }
149
150 return (error);
151}
152
153void
154lzc_compat_post(zfs_cmd_t *zc, const zfs_ioc_t ioc)
155{

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