]>
Commit | Line | Data |
---|---|---|
777af88d AC |
1 | /* |
2 | * Copyright (c) 2013, 2014 Alexandru Copot <alex.mihai.c@gmail.com>, with support from IXIA. | |
3 | * Copyright (c) 2013, 2014 Daniel Baluta <dbaluta@ixiacom.com> | |
7b334c5c | 4 | * Copyright (c) 2014 Nicira, Inc. |
777af88d AC |
5 | * |
6 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
7 | * you may not use this file except in compliance with the License. | |
8 | * You may obtain a copy of the License at: | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, software | |
13 | * distributed under the License is distributed on an "AS IS" BASIS, | |
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
15 | * See the License for the specific language governing permissions and | |
16 | * limitations under the License. | |
17 | */ | |
18 | ||
19 | #include <config.h> | |
20 | ||
21 | #include "coverage.h" | |
22 | #include "fail-open.h" | |
23 | #include "in-band.h" | |
24 | #include "odp-util.h" | |
25 | #include "ofp-actions.h" | |
26 | #include "ofp-msgs.h" | |
27 | #include "ofp-util.h" | |
28 | #include "ofpbuf.h" | |
29 | #include "ofproto-provider.h" | |
30 | #include "pinsched.h" | |
31 | #include "poll-loop.h" | |
32 | #include "pktbuf.h" | |
33 | #include "rconn.h" | |
34 | #include "shash.h" | |
35 | #include "simap.h" | |
36 | #include "stream.h" | |
37 | #include "timeval.h" | |
4a1f523f | 38 | #include "openvswitch/vconn.h" |
e6211adc | 39 | #include "openvswitch/vlog.h" |
777af88d AC |
40 | |
41 | #include "bundles.h" | |
42 | ||
43 | VLOG_DEFINE_THIS_MODULE(bundles); | |
44 | ||
45 | enum bundle_state { | |
46 | BS_OPEN, | |
47 | BS_CLOSED | |
48 | }; | |
49 | ||
50 | struct ofp_bundle { | |
51 | struct hmap_node node; /* In struct ofconn's "bundles" hmap. */ | |
52 | uint32_t id; | |
53 | uint16_t flags; | |
54 | enum bundle_state state; | |
55 | ||
56 | /* List of 'struct bundle_message's */ | |
ca6ba700 | 57 | struct ovs_list msg_list; |
777af88d AC |
58 | }; |
59 | ||
60 | struct bundle_message { | |
61 | struct ofp_header *msg; | |
ca6ba700 | 62 | struct ovs_list node; /* Element in 'struct ofp_bundles's msg_list */ |
777af88d AC |
63 | }; |
64 | ||
65 | static uint32_t | |
66 | bundle_hash(uint32_t id) | |
67 | { | |
68 | return hash_int(id, 0); | |
69 | } | |
70 | ||
71 | static struct ofp_bundle * | |
72 | ofp_bundle_find(struct hmap *bundles, uint32_t id) | |
73 | { | |
74 | struct ofp_bundle *bundle; | |
75 | ||
76 | HMAP_FOR_EACH_IN_BUCKET(bundle, node, bundle_hash(id), bundles) { | |
77 | if (bundle->id == id) { | |
78 | return bundle; | |
79 | } | |
80 | } | |
81 | ||
82 | return NULL; | |
83 | } | |
84 | ||
85 | static struct ofp_bundle * | |
86 | ofp_bundle_create(uint32_t id, uint16_t flags) | |
87 | { | |
88 | struct ofp_bundle *bundle; | |
89 | ||
90 | bundle = xmalloc(sizeof(*bundle)); | |
91 | ||
92 | bundle->id = id; | |
93 | bundle->flags = flags; | |
94 | ||
95 | list_init(&bundle->msg_list); | |
96 | ||
97 | return bundle; | |
98 | } | |
99 | ||
100 | static void | |
101 | ofp_bundle_remove(struct ofconn *ofconn, struct ofp_bundle *item) | |
102 | { | |
5f03c983 | 103 | struct bundle_message *msg; |
777af88d AC |
104 | struct hmap *bundles; |
105 | ||
5f03c983 | 106 | LIST_FOR_EACH_POP (msg, node, &item->msg_list) { |
777af88d AC |
107 | free(msg->msg); |
108 | free(msg); | |
109 | } | |
110 | ||
111 | bundles = ofconn_get_bundles(ofconn); | |
112 | hmap_remove(bundles, &item->node); | |
113 | ||
114 | free(item); | |
115 | } | |
116 | ||
117 | void | |
118 | ofp_bundle_remove_all(struct ofconn *ofconn) | |
119 | { | |
120 | struct ofp_bundle *b, *next; | |
121 | struct hmap *bundles; | |
122 | ||
123 | bundles = ofconn_get_bundles(ofconn); | |
124 | ||
125 | HMAP_FOR_EACH_SAFE (b, next, node, bundles) { | |
126 | ofp_bundle_remove(ofconn, b); | |
127 | } | |
128 | } | |
129 | ||
130 | enum ofperr | |
131 | ofp_bundle_open(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
132 | { | |
133 | struct hmap *bundles; | |
134 | struct ofp_bundle *bundle; | |
135 | ||
136 | bundles = ofconn_get_bundles(ofconn); | |
137 | bundle = ofp_bundle_find(bundles, id); | |
138 | ||
139 | if (bundle) { | |
140 | VLOG_INFO("Bundle %x already exists.", id); | |
141 | ofp_bundle_remove(ofconn, bundle); | |
142 | ||
143 | return OFPERR_OFPBFC_BAD_ID; | |
144 | } | |
145 | ||
645b8934 | 146 | /* XXX: Check the limit of open bundles */ |
777af88d AC |
147 | |
148 | bundle = ofp_bundle_create(id, flags); | |
149 | bundle->state = BS_OPEN; | |
150 | ||
151 | bundles = ofconn_get_bundles(ofconn); | |
152 | hmap_insert(bundles, &bundle->node, bundle_hash(id)); | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
157 | enum ofperr | |
158 | ofp_bundle_close(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
159 | { | |
160 | struct hmap *bundles; | |
161 | struct ofp_bundle *bundle; | |
162 | ||
163 | bundles = ofconn_get_bundles(ofconn); | |
164 | bundle = ofp_bundle_find(bundles, id); | |
165 | ||
166 | if (!bundle) { | |
167 | return OFPERR_OFPBFC_BAD_ID; | |
168 | } | |
169 | ||
170 | if (bundle->state == BS_CLOSED) { | |
171 | ofp_bundle_remove(ofconn, bundle); | |
172 | return OFPERR_OFPBFC_BUNDLE_CLOSED; | |
173 | } | |
174 | ||
175 | if (bundle->flags != flags) { | |
176 | ofp_bundle_remove(ofconn, bundle); | |
177 | return OFPERR_OFPBFC_BAD_FLAGS; | |
178 | } | |
179 | ||
180 | bundle->state = BS_CLOSED; | |
181 | return 0; | |
182 | } | |
183 | ||
184 | enum ofperr | |
185 | ofp_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
186 | { | |
187 | struct hmap *bundles; | |
188 | struct ofp_bundle *bundle; | |
d56318cf JR |
189 | enum ofperr error = 0; |
190 | struct bundle_message *msg; | |
777af88d AC |
191 | |
192 | bundles = ofconn_get_bundles(ofconn); | |
193 | bundle = ofp_bundle_find(bundles, id); | |
194 | ||
195 | if (!bundle) { | |
196 | return OFPERR_OFPBFC_BAD_ID; | |
197 | } | |
198 | if (bundle->flags != flags) { | |
d56318cf JR |
199 | error = OFPERR_OFPBFC_BAD_FLAGS; |
200 | } else { | |
201 | LIST_FOR_EACH (msg, node, &bundle->msg_list) { | |
202 | /* XXX: actual commit */ | |
203 | error = OFPERR_OFPBFC_MSG_FAILED; | |
204 | } | |
777af88d AC |
205 | } |
206 | ||
d56318cf JR |
207 | ofp_bundle_remove(ofconn, bundle); |
208 | return error; | |
777af88d AC |
209 | } |
210 | ||
211 | enum ofperr | |
212 | ofp_bundle_discard(struct ofconn *ofconn, uint32_t id) | |
213 | { | |
214 | struct hmap *bundles; | |
215 | struct ofp_bundle *bundle; | |
216 | ||
217 | bundles = ofconn_get_bundles(ofconn); | |
218 | bundle = ofp_bundle_find(bundles, id); | |
219 | ||
220 | if (!bundle) { | |
221 | return OFPERR_OFPBFC_BAD_ID; | |
222 | } | |
223 | ||
224 | ofp_bundle_remove(ofconn, bundle); | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | enum ofperr | |
230 | ofp_bundle_add_message(struct ofconn *ofconn, struct ofputil_bundle_add_msg *badd) | |
231 | { | |
232 | struct hmap *bundles; | |
233 | struct ofp_bundle *bundle; | |
234 | struct bundle_message *bmsg; | |
235 | ||
236 | bundles = ofconn_get_bundles(ofconn); | |
237 | bundle = ofp_bundle_find(bundles, badd->bundle_id); | |
238 | ||
239 | if (!bundle) { | |
240 | bundle = ofp_bundle_create(badd->bundle_id, badd->flags); | |
241 | bundle->state = BS_OPEN; | |
242 | ||
243 | bundles = ofconn_get_bundles(ofconn); | |
244 | hmap_insert(bundles, &bundle->node, bundle_hash(badd->bundle_id)); | |
7b334c5c | 245 | } else if (bundle->state == BS_CLOSED) { |
777af88d AC |
246 | ofp_bundle_remove(ofconn, bundle); |
247 | return OFPERR_OFPBFC_BUNDLE_CLOSED; | |
7b334c5c JR |
248 | } else if (badd->flags != bundle->flags) { |
249 | ofp_bundle_remove(ofconn, bundle); | |
250 | return OFPERR_OFPBFC_BAD_FLAGS; | |
777af88d AC |
251 | } |
252 | ||
253 | bmsg = xmalloc(sizeof *bmsg); | |
254 | bmsg->msg = xmemdup(badd->msg, ntohs(badd->msg->length)); | |
255 | list_push_back(&bundle->msg_list, &bmsg->node); | |
256 | return 0; | |
257 | } |