Commit | Line | Data |
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00c76cea JG |
1 | /* |
2 | * Copyright (C) 2013 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
11 | * for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public License | |
14 | * along with this library; if not, write to the Free Software Foundation, | |
15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
00c76cea JG |
19 | #include <assert.h> |
20 | #include <string.h> | |
21 | ||
22 | #include <lttng/lttng-error.h> | |
23 | #include <lttng/save.h> | |
24 | #include <lttng/save-internal.h> | |
25 | #include <common/sessiond-comm/sessiond-comm.h> | |
26 | ||
27 | #include "lttng-ctl-helper.h" | |
28 | ||
29 | struct lttng_save_session_attr *lttng_save_session_attr_create(void) | |
30 | { | |
31 | return zmalloc(sizeof(struct lttng_save_session_attr)); | |
32 | } | |
33 | ||
34 | void lttng_save_session_attr_destroy(struct lttng_save_session_attr *output) | |
35 | { | |
36 | if (output) { | |
37 | free(output); | |
38 | } | |
39 | } | |
40 | ||
41 | const char *lttng_save_session_attr_get_session_name( | |
42 | struct lttng_save_session_attr *attr) | |
43 | { | |
44 | const char *ret = NULL; | |
45 | ||
46 | if (attr && attr->session_name[0]) { | |
47 | ret = attr->session_name; | |
48 | } | |
49 | ||
50 | return ret; | |
51 | } | |
52 | ||
53 | const char *lttng_save_session_attr_get_output_url( | |
54 | struct lttng_save_session_attr *attr) | |
55 | { | |
56 | const char *ret = NULL; | |
57 | ||
58 | if (attr && attr->configuration_url[0]) { | |
59 | ret = attr->configuration_url; | |
60 | } | |
61 | ||
62 | return ret; | |
63 | } | |
64 | ||
65 | int lttng_save_session_attr_get_overwrite( | |
66 | struct lttng_save_session_attr *attr) | |
67 | { | |
68 | return attr ? attr->overwrite : -LTTNG_ERR_INVALID; | |
69 | } | |
70 | ||
30f9c327 JG |
71 | int lttng_save_session_attr_get_omit_name( |
72 | struct lttng_save_session_attr *attr) | |
73 | { | |
74 | return attr ? attr->omit_name : -LTTNG_ERR_INVALID; | |
75 | } | |
76 | ||
77 | int lttng_save_session_attr_get_omit_output( | |
78 | struct lttng_save_session_attr *attr) | |
79 | { | |
80 | return attr ? attr->omit_output : -LTTNG_ERR_INVALID; | |
81 | } | |
82 | ||
00c76cea JG |
83 | int lttng_save_session_attr_set_session_name( |
84 | struct lttng_save_session_attr *attr, const char *session_name) | |
85 | { | |
86 | int ret = 0; | |
87 | ||
88 | if (!attr) { | |
89 | ret = -LTTNG_ERR_INVALID; | |
90 | goto error; | |
91 | } | |
92 | ||
93 | if (session_name) { | |
94 | size_t len; | |
95 | ||
96 | len = strlen(session_name); | |
36d2e35d | 97 | if (len >= LTTNG_NAME_MAX) { |
00c76cea JG |
98 | ret = -LTTNG_ERR_INVALID; |
99 | goto error; | |
100 | } | |
101 | ||
3716477e JG |
102 | ret = lttng_strncpy(attr->session_name, session_name, |
103 | sizeof(attr->session_name)); | |
104 | if (ret) { | |
105 | ret = -LTTNG_ERR_INVALID; | |
106 | goto error; | |
107 | } | |
00c76cea JG |
108 | } else { |
109 | attr->session_name[0] = '\0'; | |
110 | } | |
111 | error: | |
112 | return ret; | |
113 | } | |
114 | ||
115 | int lttng_save_session_attr_set_output_url( | |
116 | struct lttng_save_session_attr *attr, const char *url) | |
117 | { | |
118 | int ret = 0; | |
106d4b46 JRJ |
119 | size_t len; |
120 | ssize_t size; | |
b1a95f61 | 121 | struct lttng_uri *uris = NULL; |
00c76cea JG |
122 | |
123 | if (!attr) { | |
124 | ret = -LTTNG_ERR_INVALID; | |
125 | goto error; | |
126 | } | |
127 | ||
b1a95f61 DG |
128 | if (!url) { |
129 | attr->configuration_url[0] = '\0'; | |
130 | ret = 0; | |
131 | goto end; | |
132 | } | |
00c76cea | 133 | |
b1a95f61 DG |
134 | len = strlen(url); |
135 | if (len >= PATH_MAX) { | |
136 | ret = -LTTNG_ERR_INVALID; | |
137 | goto error; | |
138 | } | |
00c76cea | 139 | |
b1a95f61 DG |
140 | size = uri_parse_str_urls(url, NULL, &uris); |
141 | if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) { | |
142 | ret = -LTTNG_ERR_INVALID; | |
143 | goto error; | |
00c76cea | 144 | } |
b1a95f61 DG |
145 | |
146 | /* Copy string plus the NULL terminated byte. */ | |
55fb8091 JG |
147 | ret = lttng_strncpy(attr->configuration_url, uris[0].dst.path, |
148 | sizeof(attr->configuration_url)); | |
149 | if (ret) { | |
150 | ret = -LTTNG_ERR_INVALID; | |
151 | goto error; | |
152 | } | |
b1a95f61 DG |
153 | |
154 | end: | |
00c76cea | 155 | error: |
b1a95f61 | 156 | free(uris); |
00c76cea JG |
157 | return ret; |
158 | } | |
159 | ||
160 | int lttng_save_session_attr_set_overwrite( | |
161 | struct lttng_save_session_attr *attr, int overwrite) | |
162 | { | |
163 | int ret = 0; | |
164 | ||
165 | if (!attr) { | |
166 | ret = -LTTNG_ERR_INVALID; | |
167 | goto end; | |
168 | } | |
169 | ||
170 | attr->overwrite = !!overwrite; | |
171 | end: | |
172 | return ret; | |
173 | } | |
174 | ||
30f9c327 JG |
175 | int lttng_save_session_attr_set_omit_name( |
176 | struct lttng_save_session_attr *attr, int omit_name) | |
177 | { | |
178 | int ret = 0; | |
179 | ||
180 | if (!attr) { | |
181 | ret = -LTTNG_ERR_INVALID; | |
182 | goto end; | |
183 | } | |
184 | ||
185 | attr->omit_name = !!omit_name; | |
186 | end: | |
187 | return ret; | |
188 | } | |
189 | ||
190 | int lttng_save_session_attr_set_omit_output( | |
191 | struct lttng_save_session_attr *attr, int omit_output) | |
192 | { | |
193 | int ret = 0; | |
194 | ||
195 | if (!attr) { | |
196 | ret = -LTTNG_ERR_INVALID; | |
197 | goto end; | |
198 | } | |
199 | ||
200 | attr->omit_output = !!omit_output; | |
201 | end: | |
202 | return ret; | |
203 | } | |
204 | ||
00c76cea JG |
205 | /* |
206 | * The lttng-ctl API does not expose all the information needed to save the | |
207 | * session configurations. Thus, we must send a save command to the session | |
208 | * daemon which will, in turn, save its current session configuration. | |
209 | */ | |
210 | int lttng_save_session(struct lttng_save_session_attr *attr) | |
211 | { | |
212 | struct lttcomm_session_msg lsm; | |
213 | int ret; | |
214 | ||
215 | if (!attr) { | |
216 | ret = -LTTNG_ERR_INVALID; | |
217 | goto end; | |
218 | } | |
219 | ||
220 | memset(&lsm, 0, sizeof(lsm)); | |
221 | lsm.cmd_type = LTTNG_SAVE_SESSION; | |
222 | ||
223 | memcpy(&lsm.u.save_session.attr, attr, | |
224 | sizeof(struct lttng_save_session_attr)); | |
225 | ret = lttng_ctl_ask_sessiond(&lsm, NULL); | |
226 | end: | |
227 | return ret; | |
228 | } |