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31f18b77 | 1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
9f95a23c | 2 | // vim: ts=8 sw=2 smarttab ft=cpp |
31f18b77 FG |
3 | |
4 | ||
5 | #include <cstring> | |
11fdf7f2 TL |
6 | #include <iostream> |
7 | #include <regex> | |
31f18b77 FG |
8 | #include <sstream> |
9 | #include <stack> | |
10 | #include <utility> | |
11 | ||
11fdf7f2 TL |
12 | #include <experimental/iterator> |
13 | ||
31f18b77 FG |
14 | #include "rapidjson/reader.h" |
15 | ||
16 | #include "rgw_auth.h" | |
224ce89b | 17 | #include <arpa/inet.h> |
31f18b77 FG |
18 | #include "rgw_iam_policy.h" |
19 | ||
20 | namespace { | |
21 | constexpr int dout_subsys = ceph_subsys_rgw; | |
22 | } | |
23 | ||
24 | using std::bitset; | |
25 | using std::find; | |
26 | using std::int64_t; | |
27 | using std::move; | |
28 | using std::pair; | |
29 | using std::size_t; | |
30 | using std::string; | |
31 | using std::stringstream; | |
32 | using std::ostream; | |
33 | using std::uint16_t; | |
34 | using std::uint64_t; | |
35 | using std::unordered_map; | |
36 | ||
37 | using boost::container::flat_set; | |
11fdf7f2 TL |
38 | using std::regex; |
39 | using std::regex_constants::ECMAScript; | |
40 | using std::regex_constants::optimize; | |
41 | using std::regex_match; | |
42 | using std::smatch; | |
31f18b77 FG |
43 | |
44 | using rapidjson::BaseReaderHandler; | |
45 | using rapidjson::UTF8; | |
46 | using rapidjson::SizeType; | |
47 | using rapidjson::Reader; | |
48 | using rapidjson::kParseCommentsFlag; | |
49 | using rapidjson::kParseNumbersAsStringsFlag; | |
50 | using rapidjson::StringStream; | |
51 | using rapidjson::ParseResult; | |
52 | ||
53 | using rgw::auth::Principal; | |
54 | ||
55 | namespace rgw { | |
56 | namespace IAM { | |
57 | #include "rgw_iam_policy_keywords.frag.cc" | |
58 | ||
59 | struct actpair { | |
60 | const char* name; | |
61 | const uint64_t bit; | |
62 | }; | |
63 | ||
31f18b77 | 64 | |
31f18b77 FG |
65 | |
66 | static const actpair actpairs[] = | |
67 | {{ "s3:AbortMultipartUpload", s3AbortMultipartUpload }, | |
68 | { "s3:CreateBucket", s3CreateBucket }, | |
69 | { "s3:DeleteBucketPolicy", s3DeleteBucketPolicy }, | |
70 | { "s3:DeleteBucket", s3DeleteBucket }, | |
71 | { "s3:DeleteBucketWebsite", s3DeleteBucketWebsite }, | |
72 | { "s3:DeleteObject", s3DeleteObject }, | |
73 | { "s3:DeleteObjectVersion", s3DeleteObjectVersion }, | |
224ce89b WB |
74 | { "s3:DeleteObjectTagging", s3DeleteObjectTagging }, |
75 | { "s3:DeleteObjectVersionTagging", s3DeleteObjectVersionTagging }, | |
9f95a23c TL |
76 | { "s3:DeleteBucketPublicAccessBlock", s3DeleteBucketPublicAccessBlock}, |
77 | { "s3:DeletePublicAccessBlock", s3DeletePublicAccessBlock}, | |
31f18b77 FG |
78 | { "s3:DeleteReplicationConfiguration", s3DeleteReplicationConfiguration }, |
79 | { "s3:GetAccelerateConfiguration", s3GetAccelerateConfiguration }, | |
80 | { "s3:GetBucketAcl", s3GetBucketAcl }, | |
81 | { "s3:GetBucketCORS", s3GetBucketCORS }, | |
82 | { "s3:GetBucketLocation", s3GetBucketLocation }, | |
83 | { "s3:GetBucketLogging", s3GetBucketLogging }, | |
84 | { "s3:GetBucketNotification", s3GetBucketNotification }, | |
85 | { "s3:GetBucketPolicy", s3GetBucketPolicy }, | |
9f95a23c TL |
86 | { "s3:GetBucketPolicyStatus", s3GetBucketPolicyStatus }, |
87 | { "s3:GetBucketPublicAccessBlock", s3GetBucketPublicAccessBlock }, | |
31f18b77 FG |
88 | { "s3:GetBucketRequestPayment", s3GetBucketRequestPayment }, |
89 | { "s3:GetBucketTagging", s3GetBucketTagging }, | |
90 | { "s3:GetBucketVersioning", s3GetBucketVersioning }, | |
91 | { "s3:GetBucketWebsite", s3GetBucketWebsite }, | |
92 | { "s3:GetLifecycleConfiguration", s3GetLifecycleConfiguration }, | |
eafe8130 | 93 | { "s3:GetBucketObjectLockConfiguration", s3GetBucketObjectLockConfiguration }, |
9f95a23c | 94 | { "s3:GetPublicAccessBlock", s3GetPublicAccessBlock }, |
31f18b77 FG |
95 | { "s3:GetObjectAcl", s3GetObjectAcl }, |
96 | { "s3:GetObject", s3GetObject }, | |
97 | { "s3:GetObjectTorrent", s3GetObjectTorrent }, | |
98 | { "s3:GetObjectVersionAcl", s3GetObjectVersionAcl }, | |
99 | { "s3:GetObjectVersion", s3GetObjectVersion }, | |
100 | { "s3:GetObjectVersionTorrent", s3GetObjectVersionTorrent }, | |
224ce89b WB |
101 | { "s3:GetObjectTagging", s3GetObjectTagging }, |
102 | { "s3:GetObjectVersionTagging", s3GetObjectVersionTagging}, | |
eafe8130 TL |
103 | { "s3:GetObjectRetention", s3GetObjectRetention}, |
104 | { "s3:GetObjectLegalHold", s3GetObjectLegalHold}, | |
31f18b77 FG |
105 | { "s3:GetReplicationConfiguration", s3GetReplicationConfiguration }, |
106 | { "s3:ListAllMyBuckets", s3ListAllMyBuckets }, | |
28e407b8 | 107 | { "s3:ListBucketMultipartUploads", s3ListBucketMultipartUploads }, |
31f18b77 FG |
108 | { "s3:ListBucket", s3ListBucket }, |
109 | { "s3:ListBucketVersions", s3ListBucketVersions }, | |
110 | { "s3:ListMultipartUploadParts", s3ListMultipartUploadParts }, | |
111 | { "s3:PutAccelerateConfiguration", s3PutAccelerateConfiguration }, | |
112 | { "s3:PutBucketAcl", s3PutBucketAcl }, | |
113 | { "s3:PutBucketCORS", s3PutBucketCORS }, | |
114 | { "s3:PutBucketLogging", s3PutBucketLogging }, | |
115 | { "s3:PutBucketNotification", s3PutBucketNotification }, | |
116 | { "s3:PutBucketPolicy", s3PutBucketPolicy }, | |
117 | { "s3:PutBucketRequestPayment", s3PutBucketRequestPayment }, | |
118 | { "s3:PutBucketTagging", s3PutBucketTagging }, | |
119 | { "s3:PutBucketVersioning", s3PutBucketVersioning }, | |
120 | { "s3:PutBucketWebsite", s3PutBucketWebsite }, | |
121 | { "s3:PutLifecycleConfiguration", s3PutLifecycleConfiguration }, | |
eafe8130 | 122 | { "s3:PutBucketObjectLockConfiguration", s3PutBucketObjectLockConfiguration }, |
31f18b77 FG |
123 | { "s3:PutObjectAcl", s3PutObjectAcl }, |
124 | { "s3:PutObject", s3PutObject }, | |
125 | { "s3:PutObjectVersionAcl", s3PutObjectVersionAcl }, | |
224ce89b WB |
126 | { "s3:PutObjectTagging", s3PutObjectTagging }, |
127 | { "s3:PutObjectVersionTagging", s3PutObjectVersionTagging }, | |
eafe8130 TL |
128 | { "s3:PutObjectRetention", s3PutObjectRetention }, |
129 | { "s3:PutObjectLegalHold", s3PutObjectLegalHold }, | |
130 | { "s3:BypassGovernanceRetention", s3BypassGovernanceRetention }, | |
9f95a23c TL |
131 | { "s3:PutBucketPublicAccessBlock", s3PutBucketPublicAccessBlock }, |
132 | { "s3:PutPublicAccessBlock", s3PutPublicAccessBlock }, | |
31f18b77 | 133 | { "s3:PutReplicationConfiguration", s3PutReplicationConfiguration }, |
11fdf7f2 TL |
134 | { "s3:RestoreObject", s3RestoreObject }, |
135 | { "iam:PutUserPolicy", iamPutUserPolicy }, | |
136 | { "iam:GetUserPolicy", iamGetUserPolicy }, | |
137 | { "iam:DeleteUserPolicy", iamDeleteUserPolicy }, | |
138 | { "iam:ListUserPolicies", iamListUserPolicies }, | |
139 | { "iam:CreateRole", iamCreateRole}, | |
140 | { "iam:DeleteRole", iamDeleteRole}, | |
141 | { "iam:GetRole", iamGetRole}, | |
142 | { "iam:ModifyRole", iamModifyRole}, | |
143 | { "iam:ListRoles", iamListRoles}, | |
144 | { "iam:PutRolePolicy", iamPutRolePolicy}, | |
145 | { "iam:GetRolePolicy", iamGetRolePolicy}, | |
146 | { "iam:ListRolePolicies", iamListRolePolicies}, | |
147 | { "iam:DeleteRolePolicy", iamDeleteRolePolicy}, | |
f91f0fd5 TL |
148 | { "iam:CreateOIDCProvider", iamCreateOIDCProvider}, |
149 | { "iam:DeleteOIDCProvider", iamDeleteOIDCProvider}, | |
150 | { "iam:GetOIDCProvider", iamGetOIDCProvider}, | |
151 | { "iam:ListOIDCProviders", iamListOIDCProviders}, | |
11fdf7f2 TL |
152 | { "sts:AssumeRole", stsAssumeRole}, |
153 | { "sts:AssumeRoleWithWebIdentity", stsAssumeRoleWithWebIdentity}, | |
154 | { "sts:GetSessionToken", stsGetSessionToken}, | |
155 | }; | |
31f18b77 FG |
156 | |
157 | struct PolicyParser; | |
158 | ||
159 | const Keyword top[1]{"<Top>", TokenKind::pseudo, TokenID::Top, 0, false, | |
160 | false}; | |
161 | const Keyword cond_key[1]{"<Condition Key>", TokenKind::cond_key, | |
162 | TokenID::CondKey, 0, true, false}; | |
163 | ||
164 | struct ParseState { | |
165 | PolicyParser* pp; | |
166 | const Keyword* w; | |
167 | ||
168 | bool arraying = false; | |
169 | bool objecting = false; | |
c07f9fc5 | 170 | bool cond_ifexists = false; |
31f18b77 FG |
171 | |
172 | void reset(); | |
173 | ||
174 | ParseState(PolicyParser* pp, const Keyword* w) | |
175 | : pp(pp), w(w) {} | |
176 | ||
177 | bool obj_start(); | |
178 | ||
179 | bool obj_end(); | |
180 | ||
181 | bool array_start() { | |
182 | if (w->arrayable && !arraying) { | |
183 | arraying = true; | |
184 | return true; | |
185 | } | |
186 | return false; | |
187 | } | |
188 | ||
189 | bool array_end(); | |
190 | ||
191 | bool key(const char* s, size_t l); | |
192 | bool do_string(CephContext* cct, const char* s, size_t l); | |
193 | bool number(const char* str, size_t l); | |
194 | }; | |
195 | ||
196 | // If this confuses you, look up the Curiously Recurring Template Pattern | |
197 | struct PolicyParser : public BaseReaderHandler<UTF8<>, PolicyParser> { | |
198 | keyword_hash tokens; | |
199 | std::vector<ParseState> s; | |
200 | CephContext* cct; | |
201 | const string& tenant; | |
202 | Policy& policy; | |
d2e6a577 | 203 | uint32_t v = 0; |
31f18b77 FG |
204 | |
205 | uint32_t seen = 0; | |
206 | ||
207 | uint32_t dex(TokenID in) const { | |
208 | switch (in) { | |
209 | case TokenID::Version: | |
210 | return 0x1; | |
211 | case TokenID::Id: | |
212 | return 0x2; | |
213 | case TokenID::Statement: | |
214 | return 0x4; | |
215 | case TokenID::Sid: | |
216 | return 0x8; | |
217 | case TokenID::Effect: | |
218 | return 0x10; | |
219 | case TokenID::Principal: | |
220 | return 0x20; | |
221 | case TokenID::NotPrincipal: | |
222 | return 0x40; | |
223 | case TokenID::Action: | |
224 | return 0x80; | |
225 | case TokenID::NotAction: | |
226 | return 0x100; | |
227 | case TokenID::Resource: | |
228 | return 0x200; | |
229 | case TokenID::NotResource: | |
230 | return 0x400; | |
231 | case TokenID::Condition: | |
232 | return 0x800; | |
233 | case TokenID::AWS: | |
234 | return 0x1000; | |
235 | case TokenID::Federated: | |
236 | return 0x2000; | |
237 | case TokenID::Service: | |
238 | return 0x4000; | |
239 | case TokenID::CanonicalUser: | |
240 | return 0x8000; | |
241 | default: | |
242 | ceph_abort(); | |
243 | } | |
244 | } | |
245 | bool test(TokenID in) { | |
246 | return seen & dex(in); | |
247 | } | |
248 | void set(TokenID in) { | |
249 | seen |= dex(in); | |
d2e6a577 FG |
250 | if (dex(in) & (dex(TokenID::Sid) | dex(TokenID::Effect) | |
251 | dex(TokenID::Principal) | dex(TokenID::NotPrincipal) | | |
252 | dex(TokenID::Action) | dex(TokenID::NotAction) | | |
253 | dex(TokenID::Resource) | dex(TokenID::NotResource) | | |
254 | dex(TokenID::Condition) | dex(TokenID::AWS) | | |
255 | dex(TokenID::Federated) | dex(TokenID::Service) | | |
256 | dex(TokenID::CanonicalUser))) { | |
257 | v |= dex(in); | |
c07f9fc5 | 258 | } |
31f18b77 FG |
259 | } |
260 | void set(std::initializer_list<TokenID> l) { | |
261 | for (auto in : l) { | |
262 | seen |= dex(in); | |
d2e6a577 FG |
263 | if (dex(in) & (dex(TokenID::Sid) | dex(TokenID::Effect) | |
264 | dex(TokenID::Principal) | dex(TokenID::NotPrincipal) | | |
265 | dex(TokenID::Action) | dex(TokenID::NotAction) | | |
266 | dex(TokenID::Resource) | dex(TokenID::NotResource) | | |
267 | dex(TokenID::Condition) | dex(TokenID::AWS) | | |
268 | dex(TokenID::Federated) | dex(TokenID::Service) | | |
269 | dex(TokenID::CanonicalUser))) { | |
270 | v |= dex(in); | |
c07f9fc5 | 271 | } |
31f18b77 FG |
272 | } |
273 | } | |
274 | void reset(TokenID in) { | |
275 | seen &= ~dex(in); | |
d2e6a577 FG |
276 | if (dex(in) & (dex(TokenID::Sid) | dex(TokenID::Effect) | |
277 | dex(TokenID::Principal) | dex(TokenID::NotPrincipal) | | |
278 | dex(TokenID::Action) | dex(TokenID::NotAction) | | |
279 | dex(TokenID::Resource) | dex(TokenID::NotResource) | | |
280 | dex(TokenID::Condition) | dex(TokenID::AWS) | | |
281 | dex(TokenID::Federated) | dex(TokenID::Service) | | |
282 | dex(TokenID::CanonicalUser))) { | |
283 | v &= ~dex(in); | |
c07f9fc5 | 284 | } |
31f18b77 FG |
285 | } |
286 | void reset(std::initializer_list<TokenID> l) { | |
287 | for (auto in : l) { | |
288 | seen &= ~dex(in); | |
d2e6a577 FG |
289 | if (dex(in) & (dex(TokenID::Sid) | dex(TokenID::Effect) | |
290 | dex(TokenID::Principal) | dex(TokenID::NotPrincipal) | | |
291 | dex(TokenID::Action) | dex(TokenID::NotAction) | | |
292 | dex(TokenID::Resource) | dex(TokenID::NotResource) | | |
293 | dex(TokenID::Condition) | dex(TokenID::AWS) | | |
294 | dex(TokenID::Federated) | dex(TokenID::Service) | | |
295 | dex(TokenID::CanonicalUser))) { | |
296 | v &= ~dex(in); | |
c07f9fc5 FG |
297 | } |
298 | } | |
299 | } | |
d2e6a577 FG |
300 | void reset(uint32_t& v) { |
301 | seen &= ~v; | |
302 | v = 0; | |
31f18b77 FG |
303 | } |
304 | ||
305 | PolicyParser(CephContext* cct, const string& tenant, Policy& policy) | |
306 | : cct(cct), tenant(tenant), policy(policy) {} | |
307 | PolicyParser(const PolicyParser& policy) = delete; | |
308 | ||
309 | bool StartObject() { | |
310 | if (s.empty()) { | |
311 | s.push_back({this, top}); | |
312 | s.back().objecting = true; | |
313 | return true; | |
314 | } | |
315 | ||
316 | return s.back().obj_start(); | |
317 | } | |
318 | bool EndObject(SizeType memberCount) { | |
319 | if (s.empty()) { | |
320 | return false; | |
321 | } | |
31f18b77 FG |
322 | return s.back().obj_end(); |
323 | } | |
324 | bool Key(const char* str, SizeType length, bool copy) { | |
325 | if (s.empty()) { | |
326 | return false; | |
327 | } | |
31f18b77 FG |
328 | return s.back().key(str, length); |
329 | } | |
330 | ||
331 | bool String(const char* str, SizeType length, bool copy) { | |
332 | if (s.empty()) { | |
333 | return false; | |
334 | } | |
31f18b77 FG |
335 | return s.back().do_string(cct, str, length); |
336 | } | |
337 | bool RawNumber(const char* str, SizeType length, bool copy) { | |
338 | if (s.empty()) { | |
339 | return false; | |
340 | } | |
341 | ||
342 | return s.back().number(str, length); | |
343 | } | |
344 | bool StartArray() { | |
345 | if (s.empty()) { | |
346 | return false; | |
347 | } | |
348 | ||
349 | return s.back().array_start(); | |
350 | } | |
351 | bool EndArray(SizeType) { | |
352 | if (s.empty()) { | |
353 | return false; | |
354 | } | |
355 | ||
356 | return s.back().array_end(); | |
357 | } | |
358 | ||
359 | bool Default() { | |
360 | return false; | |
361 | } | |
362 | }; | |
363 | ||
364 | ||
365 | // I really despise this misfeature of C++. | |
366 | // | |
367 | bool ParseState::obj_end() { | |
368 | if (objecting) { | |
369 | objecting = false; | |
370 | if (!arraying) { | |
371 | pp->s.pop_back(); | |
372 | } else { | |
373 | reset(); | |
374 | } | |
375 | return true; | |
376 | } | |
377 | return false; | |
378 | } | |
379 | ||
380 | bool ParseState::key(const char* s, size_t l) { | |
c07f9fc5 FG |
381 | auto token_len = l; |
382 | bool ifexists = false; | |
383 | if (w->id == TokenID::Condition && w->kind == TokenKind::statement) { | |
384 | static constexpr char IfExists[] = "IfExists"; | |
385 | if (boost::algorithm::ends_with(boost::string_view{s, l}, IfExists)) { | |
386 | ifexists = true; | |
387 | token_len -= sizeof(IfExists)-1; | |
388 | } | |
389 | } | |
390 | auto k = pp->tokens.lookup(s, token_len); | |
31f18b77 FG |
391 | |
392 | if (!k) { | |
393 | if (w->kind == TokenKind::cond_op) { | |
d2e6a577 | 394 | auto id = w->id; |
31f18b77 | 395 | auto& t = pp->policy.statements.back(); |
d2e6a577 | 396 | auto c_ife = cond_ifexists; |
31f18b77 | 397 | pp->s.emplace_back(pp, cond_key); |
d2e6a577 | 398 | t.conditions.emplace_back(id, s, l, c_ife); |
31f18b77 FG |
399 | return true; |
400 | } else { | |
401 | return false; | |
402 | } | |
403 | } | |
404 | ||
405 | // If the token we're going with belongs within the condition at the | |
406 | // top of the stack and we haven't already encountered it, push it | |
407 | // on the stack | |
31f18b77 FG |
408 | // Top |
409 | if ((((w->id == TokenID::Top) && (k->kind == TokenKind::top)) || | |
410 | // Statement | |
411 | ((w->id == TokenID::Statement) && (k->kind == TokenKind::statement)) || | |
412 | ||
413 | /// Principal | |
414 | ((w->id == TokenID::Principal || w->id == TokenID::NotPrincipal) && | |
415 | (k->kind == TokenKind::princ_type))) && | |
416 | ||
417 | // Check that it hasn't been encountered. Note that this | |
418 | // conjoins with the run of disjunctions above. | |
419 | !pp->test(k->id)) { | |
420 | pp->set(k->id); | |
421 | pp->s.emplace_back(pp, k); | |
422 | return true; | |
423 | } else if ((w->id == TokenID::Condition) && | |
424 | (k->kind == TokenKind::cond_op)) { | |
425 | pp->s.emplace_back(pp, k); | |
c07f9fc5 | 426 | pp->s.back().cond_ifexists = ifexists; |
31f18b77 FG |
427 | return true; |
428 | } | |
429 | return false; | |
430 | } | |
431 | ||
432 | // I should just rewrite a few helper functions to use iterators, | |
433 | // which will make all of this ever so much nicer. | |
11fdf7f2 TL |
434 | static boost::optional<Principal> parse_principal(CephContext* cct, TokenID t, |
435 | string&& s) { | |
31f18b77 FG |
436 | // Wildcard! |
437 | if ((t == TokenID::AWS) && (s == "*")) { | |
438 | return Principal::wildcard(); | |
439 | ||
440 | // Do nothing for now. | |
441 | } else if (t == TokenID::CanonicalUser) { | |
442 | ||
11fdf7f2 TL |
443 | } // AWS and Federated ARNs |
444 | else if (t == TokenID::AWS || t == TokenID::Federated) { | |
b32b8144 FG |
445 | if (auto a = ARN::parse(s)) { |
446 | if (a->resource == "root") { | |
447 | return Principal::tenant(std::move(a->account)); | |
448 | } | |
449 | ||
450 | static const char rx_str[] = "([^/]*)/(.*)"; | |
451 | static const regex rx(rx_str, sizeof(rx_str) - 1, | |
11fdf7f2 TL |
452 | std::regex_constants::ECMAScript | |
453 | std::regex_constants::optimize); | |
b32b8144 FG |
454 | smatch match; |
455 | if (regex_match(a->resource, match, rx) && match.size() == 3) { | |
456 | if (match[1] == "user") { | |
457 | return Principal::user(std::move(a->account), | |
458 | match[2]); | |
459 | } | |
460 | ||
461 | if (match[1] == "role") { | |
462 | return Principal::role(std::move(a->account), | |
463 | match[2]); | |
464 | } | |
11fdf7f2 TL |
465 | |
466 | if (match[1] == "oidc-provider") { | |
467 | return Principal::oidc_provider(std::move(match[2])); | |
468 | } | |
f91f0fd5 TL |
469 | if (match[1] == "assumed-role") { |
470 | return Principal::assumed_role(std::move(a->account), match[2]); | |
471 | } | |
b32b8144 FG |
472 | } |
473 | } else { | |
31f18b77 FG |
474 | if (std::none_of(s.begin(), s.end(), |
475 | [](const char& c) { | |
476 | return (c == ':') || (c == '/'); | |
477 | })) { | |
478 | // Since tenants are simply prefixes, there's no really good | |
479 | // way to see if one exists or not. So we return the thing and | |
480 | // let them try to match against it. | |
481 | return Principal::tenant(std::move(s)); | |
482 | } | |
483 | } | |
31f18b77 FG |
484 | } |
485 | ||
486 | ldout(cct, 0) << "Supplied principal is discarded: " << s << dendl; | |
487 | return boost::none; | |
488 | } | |
489 | ||
490 | bool ParseState::do_string(CephContext* cct, const char* s, size_t l) { | |
491 | auto k = pp->tokens.lookup(s, l); | |
492 | Policy& p = pp->policy; | |
11fdf7f2 TL |
493 | bool is_action = false; |
494 | bool is_validaction = false; | |
31f18b77 FG |
495 | Statement* t = p.statements.empty() ? nullptr : &(p.statements.back()); |
496 | ||
497 | // Top level! | |
498 | if ((w->id == TokenID::Version) && k && | |
499 | k->kind == TokenKind::version_key) { | |
500 | p.version = static_cast<Version>(k->specific); | |
501 | } else if (w->id == TokenID::Id) { | |
502 | p.id = string(s, l); | |
503 | ||
504 | // Statement | |
505 | ||
506 | } else if (w->id == TokenID::Sid) { | |
507 | t->sid.emplace(s, l); | |
b32b8144 | 508 | } else if ((w->id == TokenID::Effect) && k && |
31f18b77 FG |
509 | k->kind == TokenKind::effect_key) { |
510 | t->effect = static_cast<Effect>(k->specific); | |
511 | } else if (w->id == TokenID::Principal && s && *s == '*') { | |
512 | t->princ.emplace(Principal::wildcard()); | |
513 | } else if (w->id == TokenID::NotPrincipal && s && *s == '*') { | |
514 | t->noprinc.emplace(Principal::wildcard()); | |
515 | } else if ((w->id == TokenID::Action) || | |
516 | (w->id == TokenID::NotAction)) { | |
11fdf7f2 TL |
517 | is_action = true; |
518 | if (*s == '*') { | |
519 | is_validaction = true; | |
520 | (w->id == TokenID::Action ? | |
521 | t->action = allValue : t->notaction = allValue); | |
522 | } else { | |
523 | for (auto& p : actpairs) { | |
524 | if (match_policy({s, l}, p.name, MATCH_POLICY_ACTION)) { | |
525 | is_validaction = true; | |
526 | (w->id == TokenID::Action ? t->action[p.bit] = 1 : t->notaction[p.bit] = 1); | |
527 | } | |
528 | if ((t->action & s3AllValue) == s3AllValue) { | |
529 | t->action[s3All] = 1; | |
530 | } | |
531 | if ((t->notaction & s3AllValue) == s3AllValue) { | |
532 | t->notaction[s3All] = 1; | |
533 | } | |
534 | if ((t->action & iamAllValue) == iamAllValue) { | |
535 | t->action[iamAll] = 1; | |
536 | } | |
537 | if ((t->notaction & iamAllValue) == iamAllValue) { | |
538 | t->notaction[iamAll] = 1; | |
539 | } | |
540 | if ((t->action & stsAllValue) == stsAllValue) { | |
541 | t->action[stsAll] = 1; | |
542 | } | |
543 | if ((t->notaction & stsAllValue) == stsAllValue) { | |
544 | t->notaction[stsAll] = 1; | |
545 | } | |
31f18b77 FG |
546 | } |
547 | } | |
548 | } else if (w->id == TokenID::Resource || w->id == TokenID::NotResource) { | |
549 | auto a = ARN::parse({s, l}, true); | |
550 | // You can't specify resources for someone ELSE'S account. | |
551 | if (a && (a->account.empty() || a->account == pp->tenant || | |
552 | a->account == "*")) { | |
553 | if (a->account.empty() || a->account == "*") | |
554 | a->account = pp->tenant; | |
555 | (w->id == TokenID::Resource ? t->resource : t->notresource) | |
556 | .emplace(std::move(*a)); | |
557 | } | |
558 | else | |
559 | ldout(cct, 0) << "Supplied resource is discarded: " << string(s, l) | |
560 | << dendl; | |
561 | } else if (w->kind == TokenKind::cond_key) { | |
562 | auto& t = pp->policy.statements.back(); | |
563 | t.conditions.back().vals.emplace_back(s, l); | |
564 | ||
565 | // Principals | |
566 | ||
567 | } else if (w->kind == TokenKind::princ_type) { | |
3efd9988 FG |
568 | if (pp->s.size() <= 1) { |
569 | return false; | |
570 | } | |
31f18b77 FG |
571 | auto& pri = pp->s[pp->s.size() - 2].w->id == TokenID::Principal ? |
572 | t->princ : t->noprinc; | |
573 | ||
b32b8144 FG |
574 | |
575 | if (auto o = parse_principal(pp->cct, w->id, string(s, l))) { | |
31f18b77 | 576 | pri.emplace(std::move(*o)); |
b32b8144 | 577 | } |
31f18b77 FG |
578 | |
579 | // Failure | |
580 | ||
581 | } else { | |
582 | return false; | |
583 | } | |
584 | ||
585 | if (!arraying) { | |
586 | pp->s.pop_back(); | |
587 | } | |
588 | ||
11fdf7f2 TL |
589 | if (is_action && !is_validaction){ |
590 | return false; | |
591 | } | |
592 | ||
31f18b77 FG |
593 | return true; |
594 | } | |
595 | ||
596 | bool ParseState::number(const char* s, size_t l) { | |
597 | // Top level! | |
598 | if (w->kind == TokenKind::cond_key) { | |
599 | auto& t = pp->policy.statements.back(); | |
600 | t.conditions.back().vals.emplace_back(s, l); | |
601 | ||
602 | // Failure | |
603 | ||
604 | } else { | |
605 | return false; | |
606 | } | |
607 | ||
608 | if (!arraying) { | |
609 | pp->s.pop_back(); | |
610 | } | |
611 | ||
612 | return true; | |
613 | } | |
614 | ||
615 | void ParseState::reset() { | |
c07f9fc5 | 616 | pp->reset(pp->v); |
31f18b77 FG |
617 | } |
618 | ||
619 | bool ParseState::obj_start() { | |
620 | if (w->objectable && !objecting) { | |
621 | objecting = true; | |
622 | if (w->id == TokenID::Statement) { | |
11fdf7f2 | 623 | pp->policy.statements.emplace_back(); |
31f18b77 FG |
624 | } |
625 | ||
626 | return true; | |
627 | } | |
628 | ||
629 | return false; | |
630 | } | |
631 | ||
632 | ||
633 | bool ParseState::array_end() { | |
634 | if (arraying && !objecting) { | |
635 | pp->s.pop_back(); | |
636 | return true; | |
637 | } | |
638 | ||
639 | return false; | |
640 | } | |
641 | ||
642 | ostream& operator <<(ostream& m, const MaskedIP& ip) { | |
643 | // I have a theory about why std::bitset is the way it is. | |
644 | if (ip.v6) { | |
b32b8144 FG |
645 | for (int i = 7; i >= 0; --i) { |
646 | uint16_t hextet = 0; | |
647 | for (int j = 15; j >= 0; --j) { | |
648 | hextet |= (ip.addr[(i * 16) + j] << j); | |
31f18b77 | 649 | } |
b32b8144 | 650 | m << hex << (unsigned int) hextet; |
31f18b77 | 651 | if (i != 0) { |
b32b8144 | 652 | m << ":"; |
31f18b77 FG |
653 | } |
654 | } | |
655 | } else { | |
656 | // It involves Satan. | |
657 | for (int i = 3; i >= 0; --i) { | |
658 | uint8_t b = 0; | |
659 | for (int j = 7; j >= 0; --j) { | |
660 | b |= (ip.addr[(i * 8) + j] << j); | |
661 | } | |
b32b8144 | 662 | m << (unsigned int) b; |
31f18b77 FG |
663 | if (i != 0) { |
664 | m << "."; | |
665 | } | |
666 | } | |
667 | } | |
b32b8144 | 668 | m << "/" << dec << ip.prefix; |
31f18b77 FG |
669 | // It would explain a lot |
670 | return m; | |
671 | } | |
672 | ||
31f18b77 FG |
673 | bool Condition::eval(const Environment& env) const { |
674 | auto i = env.find(key); | |
675 | if (op == TokenID::Null) { | |
676 | return i == env.end() ? true : false; | |
677 | } | |
678 | ||
679 | if (i == env.end()) { | |
c07f9fc5 | 680 | return ifexists; |
31f18b77 FG |
681 | } |
682 | const auto& s = i->second; | |
683 | ||
684 | switch (op) { | |
685 | // String! | |
686 | case TokenID::StringEquals: | |
687 | return orrible(std::equal_to<std::string>(), s, vals); | |
688 | ||
689 | case TokenID::StringNotEquals: | |
11fdf7f2 | 690 | return orrible(std::not_fn(std::equal_to<std::string>()), |
31f18b77 FG |
691 | s, vals); |
692 | ||
693 | case TokenID::StringEqualsIgnoreCase: | |
694 | return orrible(ci_equal_to(), s, vals); | |
695 | ||
696 | case TokenID::StringNotEqualsIgnoreCase: | |
11fdf7f2 | 697 | return orrible(std::not_fn(ci_equal_to()), s, vals); |
31f18b77 | 698 | |
31f18b77 | 699 | case TokenID::StringLike: |
d2e6a577 FG |
700 | return orrible(string_like(), s, vals); |
701 | ||
31f18b77 | 702 | case TokenID::StringNotLike: |
11fdf7f2 | 703 | return orrible(std::not_fn(string_like()), s, vals); |
31f18b77 FG |
704 | |
705 | // Numeric | |
706 | case TokenID::NumericEquals: | |
707 | return shortible(std::equal_to<double>(), as_number, s, vals); | |
708 | ||
709 | case TokenID::NumericNotEquals: | |
11fdf7f2 | 710 | return shortible(std::not_fn(std::equal_to<double>()), |
31f18b77 FG |
711 | as_number, s, vals); |
712 | ||
713 | ||
714 | case TokenID::NumericLessThan: | |
715 | return shortible(std::less<double>(), as_number, s, vals); | |
716 | ||
717 | ||
718 | case TokenID::NumericLessThanEquals: | |
719 | return shortible(std::less_equal<double>(), as_number, s, vals); | |
720 | ||
721 | case TokenID::NumericGreaterThan: | |
722 | return shortible(std::greater<double>(), as_number, s, vals); | |
723 | ||
724 | case TokenID::NumericGreaterThanEquals: | |
725 | return shortible(std::greater_equal<double>(), as_number, s, vals); | |
726 | ||
727 | // Date! | |
728 | case TokenID::DateEquals: | |
729 | return shortible(std::equal_to<ceph::real_time>(), as_date, s, vals); | |
730 | ||
731 | case TokenID::DateNotEquals: | |
11fdf7f2 | 732 | return shortible(std::not_fn(std::equal_to<ceph::real_time>()), |
31f18b77 FG |
733 | as_date, s, vals); |
734 | ||
735 | case TokenID::DateLessThan: | |
736 | return shortible(std::less<ceph::real_time>(), as_date, s, vals); | |
737 | ||
738 | ||
739 | case TokenID::DateLessThanEquals: | |
740 | return shortible(std::less_equal<ceph::real_time>(), as_date, s, vals); | |
741 | ||
742 | case TokenID::DateGreaterThan: | |
743 | return shortible(std::greater<ceph::real_time>(), as_date, s, vals); | |
744 | ||
745 | case TokenID::DateGreaterThanEquals: | |
746 | return shortible(std::greater_equal<ceph::real_time>(), as_date, s, | |
747 | vals); | |
748 | ||
749 | // Bool! | |
750 | case TokenID::Bool: | |
751 | return shortible(std::equal_to<bool>(), as_bool, s, vals); | |
752 | ||
753 | // Binary! | |
754 | case TokenID::BinaryEquals: | |
755 | return shortible(std::equal_to<ceph::bufferlist>(), as_binary, s, | |
756 | vals); | |
757 | ||
758 | // IP Address! | |
759 | case TokenID::IpAddress: | |
760 | return shortible(std::equal_to<MaskedIP>(), as_network, s, vals); | |
761 | ||
762 | case TokenID::NotIpAddress: | |
b32b8144 FG |
763 | { |
764 | auto xc = as_network(s); | |
765 | if (!xc) { | |
766 | return false; | |
767 | } | |
768 | ||
769 | for (const string& d : vals) { | |
770 | auto xd = as_network(d); | |
771 | if (!xd) { | |
772 | continue; | |
773 | } | |
774 | ||
775 | if (xc == xd) { | |
776 | return false; | |
777 | } | |
778 | } | |
779 | return true; | |
780 | } | |
31f18b77 FG |
781 | |
782 | #if 0 | |
783 | // Amazon Resource Names! (Does S3 need this?) | |
784 | TokenID::ArnEquals, TokenID::ArnNotEquals, TokenID::ArnLike, | |
785 | TokenID::ArnNotLike, | |
786 | #endif | |
787 | ||
788 | default: | |
789 | return false; | |
790 | } | |
791 | } | |
792 | ||
11fdf7f2 | 793 | boost::optional<MaskedIP> Condition::as_network(const string& s) { |
31f18b77 FG |
794 | MaskedIP m; |
795 | if (s.empty()) { | |
11fdf7f2 | 796 | return boost::none; |
31f18b77 FG |
797 | } |
798 | ||
b32b8144 | 799 | m.v6 = (s.find(':') == string::npos) ? false : true; |
11fdf7f2 | 800 | |
31f18b77 FG |
801 | auto slash = s.find('/'); |
802 | if (slash == string::npos) { | |
803 | m.prefix = m.v6 ? 128 : 32; | |
804 | } else { | |
805 | char* end = 0; | |
806 | m.prefix = strtoul(s.data() + slash + 1, &end, 10); | |
807 | if (*end != 0 || (m.v6 && m.prefix > 128) || | |
808 | (!m.v6 && m.prefix > 32)) { | |
11fdf7f2 | 809 | return boost::none; |
31f18b77 FG |
810 | } |
811 | } | |
812 | ||
813 | string t; | |
814 | auto p = &s; | |
815 | ||
816 | if (slash != string::npos) { | |
817 | t.assign(s, 0, slash); | |
818 | p = &t; | |
819 | } | |
820 | ||
821 | if (m.v6) { | |
b32b8144 | 822 | struct in6_addr a; |
31f18b77 | 823 | if (inet_pton(AF_INET6, p->c_str(), static_cast<void*>(&a)) != 1) { |
11fdf7f2 | 824 | return boost::none; |
31f18b77 FG |
825 | } |
826 | ||
b32b8144 FG |
827 | m.addr |= Address(a.s6_addr[15]) << 0; |
828 | m.addr |= Address(a.s6_addr[14]) << 8; | |
829 | m.addr |= Address(a.s6_addr[13]) << 16; | |
830 | m.addr |= Address(a.s6_addr[12]) << 24; | |
831 | m.addr |= Address(a.s6_addr[11]) << 32; | |
832 | m.addr |= Address(a.s6_addr[10]) << 40; | |
833 | m.addr |= Address(a.s6_addr[9]) << 48; | |
834 | m.addr |= Address(a.s6_addr[8]) << 56; | |
835 | m.addr |= Address(a.s6_addr[7]) << 64; | |
836 | m.addr |= Address(a.s6_addr[6]) << 72; | |
837 | m.addr |= Address(a.s6_addr[5]) << 80; | |
838 | m.addr |= Address(a.s6_addr[4]) << 88; | |
839 | m.addr |= Address(a.s6_addr[3]) << 96; | |
840 | m.addr |= Address(a.s6_addr[2]) << 104; | |
841 | m.addr |= Address(a.s6_addr[1]) << 112; | |
842 | m.addr |= Address(a.s6_addr[0]) << 120; | |
31f18b77 | 843 | } else { |
b32b8144 | 844 | struct in_addr a; |
31f18b77 | 845 | if (inet_pton(AF_INET, p->c_str(), static_cast<void*>(&a)) != 1) { |
11fdf7f2 | 846 | return boost::none; |
31f18b77 | 847 | } |
b32b8144 FG |
848 | |
849 | m.addr = ntohl(a.s_addr); | |
31f18b77 FG |
850 | } |
851 | ||
b32b8144 | 852 | return m; |
31f18b77 FG |
853 | } |
854 | ||
855 | namespace { | |
856 | const char* condop_string(const TokenID t) { | |
857 | switch (t) { | |
858 | case TokenID::StringEquals: | |
859 | return "StringEquals"; | |
860 | ||
861 | case TokenID::StringNotEquals: | |
862 | return "StringNotEquals"; | |
863 | ||
864 | case TokenID::StringEqualsIgnoreCase: | |
865 | return "StringEqualsIgnoreCase"; | |
866 | ||
867 | case TokenID::StringNotEqualsIgnoreCase: | |
868 | return "StringNotEqualsIgnoreCase"; | |
869 | ||
870 | case TokenID::StringLike: | |
871 | return "StringLike"; | |
872 | ||
873 | case TokenID::StringNotLike: | |
874 | return "StringNotLike"; | |
875 | ||
876 | // Numeric! | |
877 | case TokenID::NumericEquals: | |
878 | return "NumericEquals"; | |
879 | ||
880 | case TokenID::NumericNotEquals: | |
881 | return "NumericNotEquals"; | |
882 | ||
883 | case TokenID::NumericLessThan: | |
884 | return "NumericLessThan"; | |
885 | ||
886 | case TokenID::NumericLessThanEquals: | |
887 | return "NumericLessThanEquals"; | |
888 | ||
889 | case TokenID::NumericGreaterThan: | |
890 | return "NumericGreaterThan"; | |
891 | ||
892 | case TokenID::NumericGreaterThanEquals: | |
893 | return "NumericGreaterThanEquals"; | |
894 | ||
895 | case TokenID::DateEquals: | |
896 | return "DateEquals"; | |
897 | ||
898 | case TokenID::DateNotEquals: | |
899 | return "DateNotEquals"; | |
900 | ||
901 | case TokenID::DateLessThan: | |
902 | return "DateLessThan"; | |
903 | ||
904 | case TokenID::DateLessThanEquals: | |
905 | return "DateLessThanEquals"; | |
906 | ||
907 | case TokenID::DateGreaterThan: | |
908 | return "DateGreaterThan"; | |
909 | ||
910 | case TokenID::DateGreaterThanEquals: | |
911 | return "DateGreaterThanEquals"; | |
912 | ||
913 | case TokenID::Bool: | |
914 | return "Bool"; | |
915 | ||
916 | case TokenID::BinaryEquals: | |
917 | return "BinaryEquals"; | |
918 | ||
919 | case TokenID::IpAddress: | |
920 | return "case TokenID::IpAddress"; | |
921 | ||
922 | case TokenID::NotIpAddress: | |
923 | return "NotIpAddress"; | |
924 | ||
925 | case TokenID::ArnEquals: | |
926 | return "ArnEquals"; | |
927 | ||
928 | case TokenID::ArnNotEquals: | |
929 | return "ArnNotEquals"; | |
930 | ||
931 | case TokenID::ArnLike: | |
932 | return "ArnLike"; | |
933 | ||
934 | case TokenID::ArnNotLike: | |
935 | return "ArnNotLike"; | |
936 | ||
937 | case TokenID::Null: | |
938 | return "Null"; | |
939 | ||
940 | default: | |
941 | return "InvalidConditionOperator"; | |
942 | } | |
943 | } | |
944 | ||
945 | template<typename Iterator> | |
946 | ostream& print_array(ostream& m, Iterator begin, Iterator end) { | |
947 | if (begin == end) { | |
11fdf7f2 | 948 | m << "[]"; |
31f18b77 | 949 | } else { |
31f18b77 | 950 | m << "[ "; |
11fdf7f2 TL |
951 | std::copy(begin, end, std::experimental::make_ostream_joiner(m, ", ")); |
952 | m << " ]"; | |
31f18b77 | 953 | } |
31f18b77 FG |
954 | return m; |
955 | } | |
11fdf7f2 TL |
956 | |
957 | template<typename Iterator> | |
958 | ostream& print_dict(ostream& m, Iterator begin, Iterator end) { | |
959 | m << "{ "; | |
960 | std::copy(begin, end, std::experimental::make_ostream_joiner(m, ", ")); | |
961 | m << " }"; | |
962 | return m; | |
963 | } | |
964 | ||
31f18b77 FG |
965 | } |
966 | ||
967 | ostream& operator <<(ostream& m, const Condition& c) { | |
11fdf7f2 | 968 | m << condop_string(c.op); |
31f18b77 FG |
969 | if (c.ifexists) { |
970 | m << "IfExists"; | |
971 | } | |
972 | m << ": { " << c.key; | |
973 | print_array(m, c.vals.cbegin(), c.vals.cend()); | |
11fdf7f2 | 974 | return m << " }"; |
31f18b77 FG |
975 | } |
976 | ||
977 | Effect Statement::eval(const Environment& e, | |
11fdf7f2 | 978 | boost::optional<const rgw::auth::Identity&> ida, |
31f18b77 | 979 | uint64_t act, const ARN& res) const { |
f6b5b4d7 TL |
980 | |
981 | if (eval_principal(e, ida) == Effect::Deny) { | |
982 | return Effect::Pass; | |
31f18b77 FG |
983 | } |
984 | ||
11fdf7f2 TL |
985 | if (!resource.empty()) { |
986 | if (!std::any_of(resource.begin(), resource.end(), | |
987 | [&res](const ARN& pattern) { | |
988 | return pattern.match(res); | |
989 | })) { | |
990 | return Effect::Pass; | |
991 | } | |
992 | } else if (!notresource.empty()) { | |
993 | if (std::any_of(notresource.begin(), notresource.end(), | |
994 | [&res](const ARN& pattern) { | |
995 | return pattern.match(res); | |
996 | })) { | |
997 | return Effect::Pass; | |
998 | } | |
31f18b77 FG |
999 | } |
1000 | ||
11fdf7f2 | 1001 | if (!(action[act] == 1) || (notaction[act] == 1)) { |
31f18b77 FG |
1002 | return Effect::Pass; |
1003 | } | |
1004 | ||
1005 | if (std::all_of(conditions.begin(), | |
1006 | conditions.end(), | |
1007 | [&e](const Condition& c) { return c.eval(e);})) { | |
1008 | return effect; | |
1009 | } | |
1010 | ||
1011 | return Effect::Pass; | |
1012 | } | |
1013 | ||
11fdf7f2 TL |
1014 | Effect Statement::eval_principal(const Environment& e, |
1015 | boost::optional<const rgw::auth::Identity&> ida) const { | |
1016 | if (ida) { | |
1017 | if (princ.empty() && noprinc.empty()) { | |
1018 | return Effect::Deny; | |
1019 | } | |
1020 | if (!princ.empty() && !ida->is_identity(princ)) { | |
1021 | return Effect::Deny; | |
1022 | } else if (!noprinc.empty() && ida->is_identity(noprinc)) { | |
1023 | return Effect::Deny; | |
1024 | } | |
1025 | } | |
1026 | return Effect::Allow; | |
1027 | } | |
1028 | ||
1029 | Effect Statement::eval_conditions(const Environment& e) const { | |
1030 | if (std::all_of(conditions.begin(), | |
1031 | conditions.end(), | |
1032 | [&e](const Condition& c) { return c.eval(e);})) { | |
1033 | return Effect::Allow; | |
1034 | } | |
1035 | return Effect::Deny; | |
1036 | } | |
1037 | ||
31f18b77 FG |
1038 | namespace { |
1039 | const char* action_bit_string(uint64_t action) { | |
1040 | switch (action) { | |
1041 | case s3GetObject: | |
1042 | return "s3:GetObject"; | |
1043 | ||
1044 | case s3GetObjectVersion: | |
1045 | return "s3:GetObjectVersion"; | |
1046 | ||
1047 | case s3PutObject: | |
1048 | return "s3:PutObject"; | |
1049 | ||
1050 | case s3GetObjectAcl: | |
1051 | return "s3:GetObjectAcl"; | |
1052 | ||
1053 | case s3GetObjectVersionAcl: | |
1054 | return "s3:GetObjectVersionAcl"; | |
1055 | ||
1056 | case s3PutObjectAcl: | |
1057 | return "s3:PutObjectAcl"; | |
1058 | ||
1059 | case s3PutObjectVersionAcl: | |
1060 | return "s3:PutObjectVersionAcl"; | |
1061 | ||
1062 | case s3DeleteObject: | |
1063 | return "s3:DeleteObject"; | |
1064 | ||
1065 | case s3DeleteObjectVersion: | |
1066 | return "s3:DeleteObjectVersion"; | |
1067 | ||
1068 | case s3ListMultipartUploadParts: | |
1069 | return "s3:ListMultipartUploadParts"; | |
1070 | ||
1071 | case s3AbortMultipartUpload: | |
1072 | return "s3:AbortMultipartUpload"; | |
1073 | ||
1074 | case s3GetObjectTorrent: | |
1075 | return "s3:GetObjectTorrent"; | |
1076 | ||
1077 | case s3GetObjectVersionTorrent: | |
1078 | return "s3:GetObjectVersionTorrent"; | |
1079 | ||
1080 | case s3RestoreObject: | |
1081 | return "s3:RestoreObject"; | |
1082 | ||
1083 | case s3CreateBucket: | |
1084 | return "s3:CreateBucket"; | |
1085 | ||
1086 | case s3DeleteBucket: | |
1087 | return "s3:DeleteBucket"; | |
1088 | ||
1089 | case s3ListBucket: | |
1090 | return "s3:ListBucket"; | |
1091 | ||
1092 | case s3ListBucketVersions: | |
1093 | return "s3:ListBucketVersions"; | |
1094 | case s3ListAllMyBuckets: | |
1095 | return "s3:ListAllMyBuckets"; | |
1096 | ||
28e407b8 AA |
1097 | case s3ListBucketMultipartUploads: |
1098 | return "s3:ListBucketMultipartUploads"; | |
31f18b77 FG |
1099 | |
1100 | case s3GetAccelerateConfiguration: | |
1101 | return "s3:GetAccelerateConfiguration"; | |
1102 | ||
1103 | case s3PutAccelerateConfiguration: | |
1104 | return "s3:PutAccelerateConfiguration"; | |
1105 | ||
1106 | case s3GetBucketAcl: | |
1107 | return "s3:GetBucketAcl"; | |
1108 | ||
1109 | case s3PutBucketAcl: | |
1110 | return "s3:PutBucketAcl"; | |
1111 | ||
1112 | case s3GetBucketCORS: | |
1113 | return "s3:GetBucketCORS"; | |
1114 | ||
1115 | case s3PutBucketCORS: | |
1116 | return "s3:PutBucketCORS"; | |
1117 | ||
1118 | case s3GetBucketVersioning: | |
1119 | return "s3:GetBucketVersioning"; | |
1120 | ||
1121 | case s3PutBucketVersioning: | |
1122 | return "s3:PutBucketVersioning"; | |
1123 | ||
1124 | case s3GetBucketRequestPayment: | |
1125 | return "s3:GetBucketRequestPayment"; | |
1126 | ||
1127 | case s3PutBucketRequestPayment: | |
1128 | return "s3:PutBucketRequestPayment"; | |
1129 | ||
1130 | case s3GetBucketLocation: | |
1131 | return "s3:GetBucketLocation"; | |
1132 | ||
1133 | case s3GetBucketPolicy: | |
1134 | return "s3:GetBucketPolicy"; | |
1135 | ||
1136 | case s3DeleteBucketPolicy: | |
1137 | return "s3:DeleteBucketPolicy"; | |
1138 | ||
1139 | case s3PutBucketPolicy: | |
1140 | return "s3:PutBucketPolicy"; | |
1141 | ||
1142 | case s3GetBucketNotification: | |
1143 | return "s3:GetBucketNotification"; | |
1144 | ||
1145 | case s3PutBucketNotification: | |
1146 | return "s3:PutBucketNotification"; | |
1147 | ||
1148 | case s3GetBucketLogging: | |
1149 | return "s3:GetBucketLogging"; | |
1150 | ||
1151 | case s3PutBucketLogging: | |
1152 | return "s3:PutBucketLogging"; | |
1153 | ||
1154 | case s3GetBucketTagging: | |
1155 | return "s3:GetBucketTagging"; | |
1156 | ||
1157 | case s3PutBucketTagging: | |
1158 | return "s3:PutBucketTagging"; | |
1159 | ||
1160 | case s3GetBucketWebsite: | |
1161 | return "s3:GetBucketWebsite"; | |
1162 | ||
1163 | case s3PutBucketWebsite: | |
1164 | return "s3:PutBucketWebsite"; | |
1165 | ||
1166 | case s3DeleteBucketWebsite: | |
1167 | return "s3:DeleteBucketWebsite"; | |
1168 | ||
1169 | case s3GetLifecycleConfiguration: | |
1170 | return "s3:GetLifecycleConfiguration"; | |
1171 | ||
1172 | case s3PutLifecycleConfiguration: | |
1173 | return "s3:PutLifecycleConfiguration"; | |
1174 | ||
1175 | case s3PutReplicationConfiguration: | |
1176 | return "s3:PutReplicationConfiguration"; | |
1177 | ||
1178 | case s3GetReplicationConfiguration: | |
1179 | return "s3:GetReplicationConfiguration"; | |
1180 | ||
1181 | case s3DeleteReplicationConfiguration: | |
1182 | return "s3:DeleteReplicationConfiguration"; | |
224ce89b WB |
1183 | |
1184 | case s3PutObjectTagging: | |
1185 | return "s3:PutObjectTagging"; | |
1186 | ||
1187 | case s3PutObjectVersionTagging: | |
1188 | return "s3:PutObjectVersionTagging"; | |
1189 | ||
1190 | case s3GetObjectTagging: | |
1191 | return "s3:GetObjectTagging"; | |
1192 | ||
1193 | case s3GetObjectVersionTagging: | |
1194 | return "s3:GetObjectVersionTagging"; | |
1195 | ||
1196 | case s3DeleteObjectTagging: | |
1197 | return "s3:DeleteObjectTagging"; | |
1198 | ||
1199 | case s3DeleteObjectVersionTagging: | |
1200 | return "s3:DeleteObjectVersionTagging"; | |
11fdf7f2 | 1201 | |
eafe8130 TL |
1202 | case s3PutBucketObjectLockConfiguration: |
1203 | return "s3:PutBucketObjectLockConfiguration"; | |
1204 | ||
1205 | case s3GetBucketObjectLockConfiguration: | |
1206 | return "s3:GetBucketObjectLockConfiguration"; | |
1207 | ||
1208 | case s3PutObjectRetention: | |
1209 | return "s3:PutObjectRetention"; | |
1210 | ||
1211 | case s3GetObjectRetention: | |
1212 | return "s3:GetObjectRetention"; | |
1213 | ||
1214 | case s3PutObjectLegalHold: | |
1215 | return "s3:PutObjectLegalHold"; | |
1216 | ||
1217 | case s3GetObjectLegalHold: | |
1218 | return "s3:GetObjectLegalHold"; | |
1219 | ||
1220 | case s3BypassGovernanceRetention: | |
1221 | return "s3:BypassGovernanceRetention"; | |
1222 | ||
11fdf7f2 TL |
1223 | case iamPutUserPolicy: |
1224 | return "iam:PutUserPolicy"; | |
1225 | ||
1226 | case iamGetUserPolicy: | |
1227 | return "iam:GetUserPolicy"; | |
1228 | ||
1229 | case iamListUserPolicies: | |
1230 | return "iam:ListUserPolicies"; | |
1231 | ||
1232 | case iamDeleteUserPolicy: | |
1233 | return "iam:DeleteUserPolicy"; | |
1234 | ||
1235 | case iamCreateRole: | |
1236 | return "iam:CreateRole"; | |
1237 | ||
1238 | case iamDeleteRole: | |
1239 | return "iam:DeleteRole"; | |
1240 | ||
1241 | case iamGetRole: | |
1242 | return "iam:GetRole"; | |
1243 | ||
1244 | case iamModifyRole: | |
1245 | return "iam:ModifyRole"; | |
1246 | ||
1247 | case iamListRoles: | |
1248 | return "iam:ListRoles"; | |
1249 | ||
1250 | case iamPutRolePolicy: | |
1251 | return "iam:PutRolePolicy"; | |
1252 | ||
1253 | case iamGetRolePolicy: | |
1254 | return "iam:GetRolePolicy"; | |
1255 | ||
1256 | case iamListRolePolicies: | |
1257 | return "iam:ListRolePolicies"; | |
1258 | ||
1259 | case iamDeleteRolePolicy: | |
1260 | return "iam:DeleteRolePolicy"; | |
1261 | ||
f91f0fd5 TL |
1262 | case iamCreateOIDCProvider: |
1263 | return "iam:CreateOIDCProvider"; | |
1264 | ||
1265 | case iamDeleteOIDCProvider: | |
1266 | return "iam:DeleteOIDCProvider"; | |
1267 | ||
1268 | case iamGetOIDCProvider: | |
1269 | return "iam:GetOIDCProvider"; | |
1270 | ||
1271 | case iamListOIDCProviders: | |
1272 | return "iam:ListOIDCProviders"; | |
1273 | ||
11fdf7f2 TL |
1274 | case stsAssumeRole: |
1275 | return "sts:AssumeRole"; | |
1276 | ||
1277 | case stsAssumeRoleWithWebIdentity: | |
1278 | return "sts:AssumeRoleWithWebIdentity"; | |
1279 | ||
1280 | case stsGetSessionToken: | |
1281 | return "sts:GetSessionToken"; | |
31f18b77 FG |
1282 | } |
1283 | return "s3Invalid"; | |
1284 | } | |
1285 | ||
11fdf7f2 | 1286 | ostream& print_actions(ostream& m, const Action_t a) { |
31f18b77 FG |
1287 | bool begun = false; |
1288 | m << "[ "; | |
11fdf7f2 TL |
1289 | for (auto i = 0U; i < allCount; ++i) { |
1290 | if (a[i] == 1) { | |
31f18b77 | 1291 | if (begun) { |
11fdf7f2 | 1292 | m << ", "; |
31f18b77 | 1293 | } else { |
11fdf7f2 | 1294 | begun = true; |
31f18b77 | 1295 | } |
11fdf7f2 | 1296 | m << action_bit_string(i); |
31f18b77 FG |
1297 | } |
1298 | } | |
1299 | if (begun) { | |
1300 | m << " ]"; | |
1301 | } else { | |
1302 | m << "]"; | |
1303 | } | |
1304 | return m; | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | ostream& operator <<(ostream& m, const Statement& s) { | |
1309 | m << "{ "; | |
1310 | if (s.sid) { | |
1311 | m << "Sid: " << *s.sid << ", "; | |
1312 | } | |
1313 | if (!s.princ.empty()) { | |
1314 | m << "Principal: "; | |
11fdf7f2 | 1315 | print_dict(m, s.princ.cbegin(), s.princ.cend()); |
31f18b77 FG |
1316 | m << ", "; |
1317 | } | |
1318 | if (!s.noprinc.empty()) { | |
1319 | m << "NotPrincipal: "; | |
11fdf7f2 | 1320 | print_dict(m, s.noprinc.cbegin(), s.noprinc.cend()); |
31f18b77 FG |
1321 | m << ", "; |
1322 | } | |
1323 | ||
1324 | m << "Effect: " << | |
1325 | (s.effect == Effect::Allow ? | |
1326 | (const char*) "Allow" : | |
1327 | (const char*) "Deny"); | |
1328 | ||
11fdf7f2 | 1329 | if (s.action.any() || s.notaction.any() || !s.resource.empty() || |
31f18b77 FG |
1330 | !s.notresource.empty() || !s.conditions.empty()) { |
1331 | m << ", "; | |
1332 | } | |
1333 | ||
11fdf7f2 | 1334 | if (s.action.any()) { |
31f18b77 FG |
1335 | m << "Action: "; |
1336 | print_actions(m, s.action); | |
1337 | ||
11fdf7f2 | 1338 | if (s.notaction.any() || !s.resource.empty() || |
31f18b77 FG |
1339 | !s.notresource.empty() || !s.conditions.empty()) { |
1340 | m << ", "; | |
1341 | } | |
1342 | } | |
1343 | ||
11fdf7f2 | 1344 | if (s.notaction.any()) { |
31f18b77 FG |
1345 | m << "NotAction: "; |
1346 | print_actions(m, s.notaction); | |
1347 | ||
1348 | if (!s.resource.empty() || !s.notresource.empty() || | |
1349 | !s.conditions.empty()) { | |
1350 | m << ", "; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | if (!s.resource.empty()) { | |
1355 | m << "Resource: "; | |
1356 | print_array(m, s.resource.cbegin(), s.resource.cend()); | |
1357 | ||
1358 | if (!s.notresource.empty() || !s.conditions.empty()) { | |
1359 | m << ", "; | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | if (!s.notresource.empty()) { | |
1364 | m << "NotResource: "; | |
1365 | print_array(m, s.notresource.cbegin(), s.notresource.cend()); | |
1366 | ||
1367 | if (!s.conditions.empty()) { | |
1368 | m << ", "; | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | if (!s.conditions.empty()) { | |
1373 | m << "Condition: "; | |
11fdf7f2 | 1374 | print_dict(m, s.conditions.cbegin(), s.conditions.cend()); |
31f18b77 FG |
1375 | } |
1376 | ||
1377 | return m << " }"; | |
1378 | } | |
1379 | ||
31f18b77 FG |
1380 | Policy::Policy(CephContext* cct, const string& tenant, |
1381 | const bufferlist& _text) | |
1382 | : text(_text.to_str()) { | |
1383 | StringStream ss(text.data()); | |
1384 | PolicyParser pp(cct, tenant, *this); | |
1385 | auto pr = Reader{}.Parse<kParseNumbersAsStringsFlag | | |
1386 | kParseCommentsFlag>(ss, pp); | |
1387 | if (!pr) { | |
1388 | throw PolicyParseException(std::move(pr)); | |
1389 | } | |
1390 | } | |
1391 | ||
1392 | Effect Policy::eval(const Environment& e, | |
11fdf7f2 | 1393 | boost::optional<const rgw::auth::Identity&> ida, |
31f18b77 FG |
1394 | std::uint64_t action, const ARN& resource) const { |
1395 | auto allowed = false; | |
1396 | for (auto& s : statements) { | |
1397 | auto g = s.eval(e, ida, action, resource); | |
1398 | if (g == Effect::Deny) { | |
1399 | return g; | |
1400 | } else if (g == Effect::Allow) { | |
1401 | allowed = true; | |
1402 | } | |
1403 | } | |
1404 | return allowed ? Effect::Allow : Effect::Pass; | |
1405 | } | |
1406 | ||
11fdf7f2 TL |
1407 | Effect Policy::eval_principal(const Environment& e, |
1408 | boost::optional<const rgw::auth::Identity&> ida) const { | |
1409 | auto allowed = false; | |
1410 | for (auto& s : statements) { | |
1411 | auto g = s.eval_principal(e, ida); | |
1412 | if (g == Effect::Deny) { | |
1413 | return g; | |
1414 | } else if (g == Effect::Allow) { | |
1415 | allowed = true; | |
1416 | } | |
1417 | } | |
1418 | return allowed ? Effect::Allow : Effect::Deny; | |
1419 | } | |
1420 | ||
1421 | Effect Policy::eval_conditions(const Environment& e) const { | |
1422 | auto allowed = false; | |
1423 | for (auto& s : statements) { | |
1424 | auto g = s.eval_conditions(e); | |
1425 | if (g == Effect::Deny) { | |
1426 | return g; | |
1427 | } else if (g == Effect::Allow) { | |
1428 | allowed = true; | |
1429 | } | |
1430 | } | |
1431 | return allowed ? Effect::Allow : Effect::Deny; | |
1432 | } | |
1433 | ||
31f18b77 FG |
1434 | ostream& operator <<(ostream& m, const Policy& p) { |
1435 | m << "{ Version: " | |
1436 | << (p.version == Version::v2008_10_17 ? "2008-10-17" : "2012-10-17"); | |
1437 | ||
1438 | if (p.id || !p.statements.empty()) { | |
1439 | m << ", "; | |
1440 | } | |
1441 | ||
1442 | if (p.id) { | |
1443 | m << "Id: " << *p.id; | |
1444 | if (!p.statements.empty()) { | |
1445 | m << ", "; | |
1446 | } | |
1447 | } | |
1448 | ||
1449 | if (!p.statements.empty()) { | |
1450 | m << "Statements: "; | |
1451 | print_array(m, p.statements.cbegin(), p.statements.cend()); | |
1452 | m << ", "; | |
1453 | } | |
1454 | return m << " }"; | |
1455 | } | |
1456 | ||
9f95a23c TL |
1457 | static const Environment iam_all_env = { |
1458 | {"aws:SourceIp","1.1.1.1"}, | |
1459 | {"aws:UserId","anonymous"}, | |
1460 | {"s3:x-amz-server-side-encryption-aws-kms-key-id","secret"} | |
1461 | }; | |
1462 | ||
1463 | struct IsPublicStatement | |
1464 | { | |
1465 | bool operator() (const Statement &s) const { | |
1466 | if (s.effect == Effect::Allow) { | |
1467 | for (const auto& p : s.princ) { | |
1468 | if (p.is_wildcard()) { | |
1469 | return s.eval_conditions(iam_all_env) == Effect::Allow; | |
1470 | } | |
1471 | } | |
1472 | // no princ should not contain fixed values | |
1473 | return std::none_of(s.noprinc.begin(), s.noprinc.end(), [](const rgw::auth::Principal& p) { | |
1474 | return p.is_wildcard(); | |
1475 | }); | |
1476 | } | |
1477 | return false; | |
1478 | } | |
1479 | }; | |
1480 | ||
1481 | ||
1482 | bool is_public(const Policy& p) | |
1483 | { | |
1484 | return std::any_of(p.statements.begin(), p.statements.end(), IsPublicStatement()); | |
31f18b77 | 1485 | } |
9f95a23c TL |
1486 | |
1487 | } // namespace IAM | |
1488 | } // namespace rgw |