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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | #ifndef CEPH_AUTHMONITOR_H | |
16 | #define CEPH_AUTHMONITOR_H | |
17 | ||
18 | #include <map> | |
19 | #include <set> | |
20 | using namespace std; | |
21 | ||
22 | #include "include/ceph_features.h" | |
23 | #include "include/types.h" | |
24 | #include "mon/PaxosService.h" | |
25 | #include "mon/MonitorDBStore.h" | |
26 | ||
27 | class MMonCommand; | |
28 | struct MAuth; | |
29 | struct MMonGlobalID; | |
30 | class KeyRing; | |
31 | class Monitor; | |
32 | ||
33 | #define MIN_GLOBAL_ID 0x1000 | |
34 | ||
35 | class AuthMonitor : public PaxosService { | |
36 | public: | |
37 | enum IncType { | |
38 | GLOBAL_ID, | |
39 | AUTH_DATA, | |
40 | }; | |
41 | struct Incremental { | |
42 | IncType inc_type; | |
43 | uint64_t max_global_id; | |
44 | uint32_t auth_type; | |
45 | bufferlist auth_data; | |
46 | ||
47 | Incremental() : inc_type(GLOBAL_ID), max_global_id(0), auth_type(0) {} | |
48 | ||
49 | void encode(bufferlist& bl, uint64_t features=-1) const { | |
50 | if ((features & CEPH_FEATURE_MONENC) == 0) { | |
51 | __u8 v = 1; | |
52 | ::encode(v, bl); | |
53 | __u32 _type = (__u32)inc_type; | |
54 | ::encode(_type, bl); | |
55 | if (_type == GLOBAL_ID) { | |
56 | ::encode(max_global_id, bl); | |
57 | } else { | |
58 | ::encode(auth_type, bl); | |
59 | ::encode(auth_data, bl); | |
60 | } | |
61 | return; | |
62 | } | |
63 | ENCODE_START(2, 2, bl); | |
64 | __u32 _type = (__u32)inc_type; | |
65 | ::encode(_type, bl); | |
66 | if (_type == GLOBAL_ID) { | |
67 | ::encode(max_global_id, bl); | |
68 | } else { | |
69 | ::encode(auth_type, bl); | |
70 | ::encode(auth_data, bl); | |
71 | } | |
72 | ENCODE_FINISH(bl); | |
73 | } | |
74 | void decode(bufferlist::iterator& bl) { | |
75 | DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl); | |
76 | __u32 _type; | |
77 | ::decode(_type, bl); | |
78 | inc_type = (IncType)_type; | |
79 | assert(inc_type >= GLOBAL_ID && inc_type <= AUTH_DATA); | |
80 | if (_type == GLOBAL_ID) { | |
81 | ::decode(max_global_id, bl); | |
82 | } else { | |
83 | ::decode(auth_type, bl); | |
84 | ::decode(auth_data, bl); | |
85 | } | |
86 | DECODE_FINISH(bl); | |
87 | } | |
88 | void dump(Formatter *f) const { | |
89 | f->dump_int("type", inc_type); | |
90 | f->dump_int("max_global_id", max_global_id); | |
91 | f->dump_int("auth_type", auth_type); | |
92 | f->dump_int("auth_data_len", auth_data.length()); | |
93 | } | |
94 | static void generate_test_instances(list<Incremental*>& ls) { | |
95 | ls.push_back(new Incremental); | |
96 | ls.push_back(new Incremental); | |
97 | ls.back()->inc_type = GLOBAL_ID; | |
98 | ls.back()->max_global_id = 1234; | |
99 | ls.push_back(new Incremental); | |
100 | ls.back()->inc_type = AUTH_DATA; | |
101 | ls.back()->auth_type = 12; | |
102 | ls.back()->auth_data.append("foo"); | |
103 | } | |
104 | }; | |
105 | ||
31f18b77 FG |
106 | struct auth_entity_t { |
107 | EntityName name; | |
108 | EntityAuth auth; | |
109 | }; | |
110 | ||
111 | ||
7c673cae FG |
112 | private: |
113 | vector<Incremental> pending_auth; | |
114 | version_t last_rotating_ver; | |
115 | uint64_t max_global_id; | |
116 | uint64_t last_allocated_id; | |
117 | ||
118 | void upgrade_format() override; | |
119 | ||
120 | void export_keyring(KeyRing& keyring); | |
121 | int import_keyring(KeyRing& keyring); | |
122 | ||
123 | void push_cephx_inc(KeyServerData::Incremental& auth_inc) { | |
124 | Incremental inc; | |
125 | inc.inc_type = AUTH_DATA; | |
126 | ::encode(auth_inc, inc.auth_data); | |
127 | inc.auth_type = CEPH_AUTH_CEPHX; | |
128 | pending_auth.push_back(inc); | |
129 | } | |
130 | ||
131 | /* validate mon caps ; don't care about caps for other services as | |
132 | * we don't know how to validate them */ | |
133 | bool valid_caps(const vector<string>& caps, ostream *out) { | |
134 | for (vector<string>::const_iterator p = caps.begin(); | |
135 | p != caps.end(); p += 2) { | |
136 | if (!p->empty() && *p != "mon") | |
137 | continue; | |
138 | MonCap tmp; | |
139 | if (!tmp.parse(*(p+1), out)) | |
140 | return false; | |
141 | } | |
142 | return true; | |
143 | } | |
144 | ||
145 | void on_active() override; | |
146 | bool should_propose(double& delay) override; | |
147 | void create_initial() override; | |
148 | void update_from_paxos(bool *need_bootstrap) override; | |
149 | void create_pending() override; // prepare a new pending | |
150 | bool prepare_global_id(MonOpRequestRef op); | |
151 | void increase_max_global_id(); | |
152 | uint64_t assign_global_id(MonOpRequestRef op, bool should_increase_max); | |
153 | // propose pending update to peers | |
154 | void encode_pending(MonitorDBStore::TransactionRef t) override; | |
155 | void encode_full(MonitorDBStore::TransactionRef t) override; | |
156 | version_t get_trim_to() override; | |
157 | ||
158 | bool preprocess_query(MonOpRequestRef op) override; // true if processed. | |
159 | bool prepare_update(MonOpRequestRef op) override; | |
160 | ||
161 | bool prep_auth(MonOpRequestRef op, bool paxos_writable); | |
162 | ||
163 | bool preprocess_command(MonOpRequestRef op); | |
164 | bool prepare_command(MonOpRequestRef op); | |
165 | ||
166 | bool check_rotate(); | |
31f18b77 FG |
167 | |
168 | bool entity_is_pending(EntityName& entity); | |
169 | int exists_and_matches_entity( | |
170 | const auth_entity_t& entity, | |
171 | bool has_secret, | |
172 | stringstream& ss); | |
173 | int exists_and_matches_entity( | |
174 | const EntityName& name, | |
175 | const EntityAuth& auth, | |
176 | const map<string,bufferlist>& caps, | |
177 | bool has_secret, | |
178 | stringstream& ss); | |
179 | int remove_entity(const EntityName &entity); | |
180 | int add_entity( | |
181 | const EntityName& name, | |
182 | const EntityAuth& auth); | |
183 | ||
7c673cae FG |
184 | public: |
185 | AuthMonitor(Monitor *mn, Paxos *p, const string& service_name) | |
186 | : PaxosService(mn, p, service_name), | |
187 | last_rotating_ver(0), | |
188 | max_global_id(0), | |
189 | last_allocated_id(0) | |
190 | {} | |
191 | ||
192 | void pre_auth(MAuth *m); | |
31f18b77 | 193 | |
7c673cae FG |
194 | void tick() override; // check state, take actions |
195 | ||
31f18b77 FG |
196 | int validate_osd_destroy( |
197 | int32_t id, | |
198 | const uuid_d& uuid, | |
199 | EntityName& cephx_entity, | |
200 | EntityName& lockbox_entity, | |
201 | stringstream& ss); | |
202 | int do_osd_destroy( | |
203 | const EntityName& cephx_entity, | |
204 | const EntityName& lockbox_entity); | |
205 | ||
206 | int do_osd_new( | |
207 | const auth_entity_t& cephx_entity, | |
208 | const auth_entity_t& lockbox_entity, | |
209 | bool has_lockbox); | |
210 | int validate_osd_new( | |
211 | int32_t id, | |
212 | const uuid_d& uuid, | |
213 | const string& cephx_secret, | |
214 | const string& lockbox_secret, | |
215 | auth_entity_t& cephx_entity, | |
216 | auth_entity_t& lockbox_entity, | |
217 | stringstream& ss); | |
218 | ||
7c673cae | 219 | void dump_info(Formatter *f); |
31f18b77 FG |
220 | |
221 | bool is_valid_cephx_key(const string& k) { | |
222 | if (k.empty()) | |
223 | return false; | |
224 | ||
225 | EntityAuth ea; | |
226 | try { | |
227 | ea.key.decode_base64(k); | |
228 | return true; | |
229 | } catch (buffer::error& e) { /* fallthrough */ } | |
230 | return false; | |
231 | } | |
7c673cae FG |
232 | }; |
233 | ||
234 | ||
235 | WRITE_CLASS_ENCODER_FEATURES(AuthMonitor::Incremental) | |
236 | ||
237 | #endif |