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Diffstat (limited to 'sandbox/linux/seccomp-bpf/errorcode.h')
-rw-r--r--sandbox/linux/seccomp-bpf/errorcode.h51
1 files changed, 28 insertions, 23 deletions
diff --git a/sandbox/linux/seccomp-bpf/errorcode.h b/sandbox/linux/seccomp-bpf/errorcode.h
index 61ec110..182fadb 100644
--- a/sandbox/linux/seccomp-bpf/errorcode.h
+++ b/sandbox/linux/seccomp-bpf/errorcode.h
@@ -27,7 +27,7 @@ class ErrorCode {
// completely arbitrary. But we want to pick it so that is is unlikely
// to be passed in accidentally, when the user intended to return an
// "errno" (see below) value instead.
- ERR_ALLOWED = 0x04000000,
+ ERR_ALLOWED = 0x04000000,
// Deny the system call with a particular "errno" value.
// N.B.: It is also possible to return "0" here. That would normally
@@ -85,21 +85,26 @@ class ErrorCode {
// need.
// TODO(markus): Check whether we should automatically emulate signed
// operations.
- OP_GREATER_UNSIGNED, OP_GREATER_EQUAL_UNSIGNED,
+ OP_GREATER_UNSIGNED,
+ OP_GREATER_EQUAL_UNSIGNED,
// Tests a system call argument against a bit mask.
// The "ALL_BITS" variant performs this test: "arg & mask == mask"
// This implies that a mask of zero always results in a passing test.
// The "ANY_BITS" variant performs this test: "arg & mask != 0"
// This implies that a mask of zero always results in a failing test.
- OP_HAS_ALL_BITS, OP_HAS_ANY_BITS,
+ OP_HAS_ALL_BITS,
+ OP_HAS_ANY_BITS,
// Total number of operations.
OP_NUM_OPS,
};
enum ErrorType {
- ET_INVALID, ET_SIMPLE, ET_TRAP, ET_COND,
+ ET_INVALID,
+ ET_SIMPLE,
+ ET_TRAP,
+ ET_COND,
};
// We allow the default constructor, as it makes the ErrorCode class
@@ -107,10 +112,7 @@ class ErrorCode {
// when compiling a BPF filter, we deliberately generate an invalid
// program that will get flagged both by our Verifier class and by
// the Linux kernel.
- ErrorCode() :
- error_type_(ET_INVALID),
- err_(SECCOMP_RET_INVALID) {
- }
+ ErrorCode() : error_type_(ET_INVALID), err_(SECCOMP_RET_INVALID) {}
explicit ErrorCode(int err);
// For all practical purposes, ErrorCodes are treated as if they were
@@ -121,7 +123,7 @@ class ErrorCode {
// callers handle life-cycle management for these objects.
// Destructor
- ~ErrorCode() { }
+ ~ErrorCode() {}
bool Equals(const ErrorCode& err) const;
bool LessThan(const ErrorCode& err) const;
@@ -135,8 +137,8 @@ class ErrorCode {
int argno() const { return argno_; }
ArgType width() const { return width_; }
Operation op() const { return op_; }
- const ErrorCode *passed() const { return passed_; }
- const ErrorCode *failed() const { return failed_; }
+ const ErrorCode* passed() const { return passed_; }
+ const ErrorCode* failed() const { return failed_; }
struct LessThan {
bool operator()(const ErrorCode& a, const ErrorCode& b) const {
@@ -152,31 +154,35 @@ class ErrorCode {
// If we are wrapping a callback, we must assign a unique id. This id is
// how the kernel tells us which one of our different SECCOMP_RET_TRAP
// cases has been triggered.
- ErrorCode(Trap::TrapFnc fnc, const void *aux, bool safe, uint16_t id);
+ ErrorCode(Trap::TrapFnc fnc, const void* aux, bool safe, uint16_t id);
// Some system calls require inspection of arguments. This constructor
// allows us to specify additional constraints.
- ErrorCode(int argno, ArgType width, Operation op, uint64_t value,
- const ErrorCode *passed, const ErrorCode *failed);
+ ErrorCode(int argno,
+ ArgType width,
+ Operation op,
+ uint64_t value,
+ const ErrorCode* passed,
+ const ErrorCode* failed);
ErrorType error_type_;
union {
// Fields needed for SECCOMP_RET_TRAP callbacks
struct {
- Trap::TrapFnc fnc_; // Callback function and arg, if trap was
- void *aux_; // triggered by the kernel's BPF filter.
- bool safe_; // Keep sandbox active while calling fnc_()
+ Trap::TrapFnc fnc_; // Callback function and arg, if trap was
+ void* aux_; // triggered by the kernel's BPF filter.
+ bool safe_; // Keep sandbox active while calling fnc_()
};
// Fields needed when inspecting additional arguments.
struct {
- uint64_t value_; // Value that we are comparing with.
- int argno_; // Syscall arg number that we are inspecting.
- ArgType width_; // Whether we are looking at a 32/64bit value.
+ uint64_t value_; // Value that we are comparing with.
+ int argno_; // Syscall arg number that we are inspecting.
+ ArgType width_; // Whether we are looking at a 32/64bit value.
Operation op_; // Comparison operation.
- const ErrorCode *passed_; // Value to be returned if comparison passed,
- const ErrorCode *failed_; // or if it failed.
+ const ErrorCode* passed_; // Value to be returned if comparison passed,
+ const ErrorCode* failed_; // or if it failed.
};
};
@@ -184,7 +190,6 @@ class ErrorCode {
// the value that uniquely identifies any ErrorCode and it (typically) can
// be emitted directly into a BPF filter program.
uint32_t err_;
-
};
} // namespace