/usr/share/gocode/src/github.com/seccomp/libseccomp-golang/seccomp_test.go is in golang-github-seccomp-libseccomp-golang-dev 0.0~git20150813.0.1b506fc-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 | // +build linux
// Tests for public API of libseccomp Go bindings
package seccomp
import (
"fmt"
"syscall"
"testing"
)
// Type Function Tests
func TestActionSetReturnCode(t *testing.T) {
if ActInvalid.SetReturnCode(0x0010) != ActInvalid {
t.Errorf("Able to set a return code on invalid action!")
}
codeSet := ActErrno.SetReturnCode(0x0001)
if codeSet == ActErrno || codeSet.GetReturnCode() != 0x0001 {
t.Errorf("Could not set return code on ActErrno")
}
}
func TestSyscallGetName(t *testing.T) {
call1 := ScmpSyscall(0x1)
callFail := ScmpSyscall(0x999)
name, err := call1.GetName()
if err != nil {
t.Errorf("Error getting syscall name for number 0x1")
} else if len(name) == 0 {
t.Errorf("Empty name returned for syscall 0x1")
}
fmt.Printf("Got name of syscall 0x1 on native arch as %s\n", name)
_, err = callFail.GetName()
if err == nil {
t.Errorf("Getting nonexistant syscall should error!")
}
}
func TestSyscallGetNameByArch(t *testing.T) {
call1 := ScmpSyscall(0x1)
callInvalid := ScmpSyscall(0x999)
archGood := ArchAMD64
archBad := ArchInvalid
name, err := call1.GetNameByArch(archGood)
if err != nil {
t.Errorf("Error getting syscall name for number 0x1 and arch AMD64")
} else if name != "write" {
t.Errorf("Got incorrect name for syscall 0x1 - expected write, got %s", name)
}
_, err = call1.GetNameByArch(archBad)
if err == nil {
t.Errorf("Bad architecture GetNameByArch() should error!")
}
_, err = callInvalid.GetNameByArch(archGood)
if err == nil {
t.Errorf("Bad syscall GetNameByArch() should error!")
}
_, err = callInvalid.GetNameByArch(archBad)
if err == nil {
t.Errorf("Bad syscall and bad arch GetNameByArch() should error!")
}
}
func TestGetSyscallFromName(t *testing.T) {
name1 := "write"
nameInval := "NOTASYSCALL"
syscall, err := GetSyscallFromName(name1)
if err != nil {
t.Errorf("Error getting syscall number of write: %s", err)
}
fmt.Printf("Got syscall number of write on native arch as %d\n", syscall)
_, err = GetSyscallFromName(nameInval)
if err == nil {
t.Errorf("Getting an invalid syscall should error!")
}
}
func TestGetSyscallFromNameByArch(t *testing.T) {
name1 := "write"
nameInval := "NOTASYSCALL"
arch1 := ArchAMD64
archInval := ArchInvalid
syscall, err := GetSyscallFromNameByArch(name1, arch1)
if err != nil {
t.Errorf("Error getting syscall number of write on AMD64: %s", err)
}
fmt.Printf("Got syscall number of write on AMD64 as %d\n", syscall)
_, err = GetSyscallFromNameByArch(nameInval, arch1)
if err == nil {
t.Errorf("Getting invalid syscall with valid arch should error")
}
_, err = GetSyscallFromNameByArch(name1, archInval)
if err == nil {
t.Errorf("Getting valid syscall for invalid arch should error")
}
_, err = GetSyscallFromNameByArch(nameInval, archInval)
if err == nil {
t.Errorf("Getting invalid syscall for invalid arch should error")
}
}
func TestMakeCondition(t *testing.T) {
condition, err := MakeCondition(3, CompareNotEqual, 0x10)
if err != nil {
t.Errorf("Error making condition struct: %s", err)
} else if condition.Argument != 3 || condition.Operand1 != 0x10 ||
condition.Operand2 != 0 || condition.Op != CompareNotEqual {
t.Errorf("Condition struct was filled incorrectly")
}
condition, err = MakeCondition(3, CompareMaskedEqual, 0x10, 0x20)
if err != nil {
t.Errorf("Error making condition struct: %s", err)
} else if condition.Argument != 3 || condition.Operand1 != 0x10 ||
condition.Operand2 != 0x20 || condition.Op != CompareMaskedEqual {
t.Errorf("Condition struct was filled incorrectly")
}
_, err = MakeCondition(7, CompareNotEqual, 0x10)
if err == nil {
t.Errorf("Condition struct with bad syscall argument number should error")
}
_, err = MakeCondition(3, CompareInvalid, 0x10)
if err == nil {
t.Errorf("Condition struct with bad comparison operator should error")
}
_, err = MakeCondition(3, CompareMaskedEqual, 0x10, 0x20, 0x30)
if err == nil {
t.Errorf("MakeCondition with more than 2 arguments should fail")
}
_, err = MakeCondition(3, CompareMaskedEqual)
if err == nil {
t.Errorf("MakeCondition with no arguments should fail")
}
}
// Utility Function Tests
func TestGetNativeArch(t *testing.T) {
arch, err := GetNativeArch()
if err != nil {
t.Errorf("GetNativeArch should not error!")
}
fmt.Printf("Got native arch of system as %s\n", arch.String())
}
// Filter Tests
func TestFilterCreateRelease(t *testing.T) {
_, err := NewFilter(ActInvalid)
if err == nil {
t.Errorf("Can create filter with invalid action")
}
filter, err := NewFilter(ActKill)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
if !filter.IsValid() {
t.Errorf("Filter created by NewFilter was not valid")
}
filter.Release()
if filter.IsValid() {
t.Errorf("Filter is valid after being released")
}
}
func TestFilterReset(t *testing.T) {
filter, err := NewFilter(ActKill)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
defer filter.Release()
// Ensure the default action is ActKill
action, err := filter.GetDefaultAction()
if err != nil {
t.Errorf("Error getting default action of filter")
} else if action != ActKill {
t.Errorf("Default action of filter was set incorrectly!")
}
// Reset with a different default action
err = filter.Reset(ActAllow)
if err != nil {
t.Errorf("Error resetting filter!")
}
valid := filter.IsValid()
if !valid {
t.Errorf("Filter is no longer valid after reset!")
}
// The default action should no longer be ActKill
action, err = filter.GetDefaultAction()
if err != nil {
t.Errorf("Error getting default action of filter")
} else if action != ActAllow {
t.Errorf("Default action of filter was set incorrectly!")
}
}
func TestFilterArchFunctions(t *testing.T) {
filter, err := NewFilter(ActKill)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
defer filter.Release()
arch, err := GetNativeArch()
if err != nil {
t.Errorf("Error getting native architecture: %s", err)
}
present, err := filter.IsArchPresent(arch)
if err != nil {
t.Errorf("Error retrieving arch from filter: %s", err)
} else if !present {
t.Errorf("Filter does not contain native architecture by default")
}
// Adding the native arch again should succeed, as it's already present
err = filter.AddArch(arch)
if err != nil {
t.Errorf("Adding arch to filter already containing it should succeed")
}
// Make sure we don't add the native arch again
prospectiveArch := ArchX86
if arch == ArchX86 {
prospectiveArch = ArchAMD64
}
// Check to make sure this other arch isn't in the filter
present, err = filter.IsArchPresent(prospectiveArch)
if err != nil {
t.Errorf("Error retrieving arch from filter: %s", err)
} else if present {
t.Errorf("Arch not added to filter is present")
}
// Try removing the nonexistant arch - should succeed
err = filter.RemoveArch(prospectiveArch)
if err != nil {
t.Errorf("Error removing nonexistant arch: %s", err)
}
// Add an arch, see if it's in the filter
err = filter.AddArch(prospectiveArch)
if err != nil {
t.Errorf("Could not add arch %s to filter: %s",
prospectiveArch.String(), err)
}
present, err = filter.IsArchPresent(prospectiveArch)
if err != nil {
t.Errorf("Error retrieving arch from filter: %s", err)
} else if !present {
t.Errorf("Filter does not contain architecture %s after it was added",
prospectiveArch.String())
}
// Remove the arch again, make sure it's not in the filter
err = filter.RemoveArch(prospectiveArch)
if err != nil {
t.Errorf("Could not remove arch %s from filter: %s",
prospectiveArch.String(), err)
}
present, err = filter.IsArchPresent(prospectiveArch)
if err != nil {
t.Errorf("Error retrieving arch from filter: %s", err)
} else if present {
t.Errorf("Filter contains architecture %s after it was removed",
prospectiveArch.String())
}
}
func TestFilterAttributeGettersAndSetters(t *testing.T) {
filter, err := NewFilter(ActKill)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
defer filter.Release()
act, err := filter.GetDefaultAction()
if err != nil {
t.Errorf("Error getting default action: %s", err)
} else if act != ActKill {
t.Errorf("Default action was set incorrectly")
}
err = filter.SetBadArchAction(ActAllow)
if err != nil {
t.Errorf("Error setting bad arch action: %s", err)
}
act, err = filter.GetBadArchAction()
if err != nil {
t.Errorf("Error getting bad arch action")
} else if act != ActAllow {
t.Errorf("Bad arch action was not set correcly!")
}
err = filter.SetNoNewPrivsBit(false)
if err != nil {
t.Errorf("Error setting no new privileges bit")
}
privs, err := filter.GetNoNewPrivsBit()
if err != nil {
t.Errorf("Error getting no new privileges bit!")
} else if privs != false {
t.Errorf("No new privileges bit was not set correctly")
}
err = filter.SetBadArchAction(ActInvalid)
if err == nil {
t.Errorf("Setting bad arch action to an invalid action should error")
}
}
func TestMergeFilters(t *testing.T) {
filter1, err := NewFilter(ActAllow)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
filter2, err := NewFilter(ActAllow)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
// Need to remove the native arch and add another to the second filter
// Filters must NOT share architectures to be successfully merged
nativeArch, err := GetNativeArch()
if err != nil {
t.Errorf("Error getting native arch: %s", err)
}
prospectiveArch := ArchAMD64
if nativeArch == ArchAMD64 {
prospectiveArch = ArchX86
}
err = filter2.AddArch(prospectiveArch)
if err != nil {
t.Errorf("Error adding architecture to filter: %s", err)
}
err = filter2.RemoveArch(nativeArch)
if err != nil {
t.Errorf("Error removing architecture from filter: %s", err)
}
err = filter1.Merge(filter2)
if err != nil {
t.Errorf("Error merging filters: %s", err)
}
if filter2.IsValid() {
t.Errorf("Source filter should not be valid after merging")
}
filter3, err := NewFilter(ActKill)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
defer filter3.Release()
err = filter1.Merge(filter3)
if err == nil {
t.Errorf("Attributes should have to match to merge filters")
}
}
func TestRuleAddAndLoad(t *testing.T) {
// Test #1: Add a trivial filter
filter1, err := NewFilter(ActAllow)
if err != nil {
t.Errorf("Error creating filter: %s", err)
}
defer filter1.Release()
call, err := GetSyscallFromName("getpid")
if err != nil {
t.Errorf("Error getting syscall number of getpid: %s", err)
}
call2, err := GetSyscallFromName("setreuid")
if err != nil {
t.Errorf("Error getting syscall number of setreuid: %s", err)
}
uid := syscall.Getuid()
euid := syscall.Geteuid()
err = filter1.AddRule(call, ActErrno.SetReturnCode(0x1))
if err != nil {
t.Errorf("Error adding rule to restrict syscall: %s", err)
}
cond, err := MakeCondition(1, CompareEqual, uint64(euid))
if err != nil {
t.Errorf("Error making rule to restrict syscall: %s", err)
}
cond2, err := MakeCondition(0, CompareEqual, uint64(uid))
if err != nil {
t.Errorf("Error making rule to restrict syscall: %s", err)
}
conditions := []ScmpCondition{cond, cond2}
err = filter1.AddRuleConditional(call2, ActErrno.SetReturnCode(0x2), conditions)
if err != nil {
t.Errorf("Error adding conditional rule: %s", err)
}
err = filter1.Load()
if err != nil {
t.Errorf("Error loading filter: %s", err)
}
// Try making a simple syscall, it should error
pid := syscall.Getpid()
if pid != -1 {
t.Errorf("Syscall should have returned error code!")
}
// Try making a Geteuid syscall that should normally succeed
err = syscall.Setreuid(uid, euid)
if err != syscall.Errno(2) {
t.Errorf("Syscall should have returned error code!")
}
}
|