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3be45fd6c0
* WIP: UI: open cert modal, hookup silence checkbox. Add cert helper funcs. * Popup dialog on file access violation. Support config-based and custom messages. * Send message to TTY on file access rule violation * TTYWriter Write now takes an es_process_t. Fix async data lifespan issue. * Dedupe TTY message printing per process per rule * Some minor swift beautification * Remove main app from dock when showing file access dialog * Update header docs * Remove define guards for ObjC header file * Update Source/common/CertificateHelpers.h Co-authored-by: Russell Hancox <russellhancox@users.noreply.github.com> * Fix comment typo Co-authored-by: Russell Hancox <russellhancox@users.noreply.github.com> * Use #import for ObjC headers * Use #import for ObjC header Co-authored-by: Russell Hancox <russellhancox@users.noreply.github.com> * lint * Comment use of escape sequences --------- Co-authored-by: Russell Hancox <russellhancox@users.noreply.github.com>
68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
/// Copyright 2023 Google LLC
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// https://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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#include "Source/santad/TTYWriter.h"
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#include <string.h>
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#include <sys/errno.h>
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#include <sys/param.h>
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#import "Source/common/SNTLogging.h"
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#include "Source/common/String.h"
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namespace santa::santad {
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std::unique_ptr<TTYWriter> TTYWriter::Create() {
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dispatch_queue_t q = dispatch_queue_create_with_target(
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"com.google.santa.ttywriter", DISPATCH_QUEUE_SERIAL_WITH_AUTORELEASE_POOL,
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dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0));
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if (!q) {
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return nullptr;
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}
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return std::make_unique<TTYWriter>(q);
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}
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TTYWriter::TTYWriter(dispatch_queue_t q) : q_(q) {}
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bool TTYWriter::CanWrite(const es_process_t *proc) {
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return proc && proc->tty && proc->tty->path.length > 0;
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}
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void TTYWriter::Write(const es_process_t *proc, NSString *msg) {
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if (!CanWrite(proc)) {
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return;
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}
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// Copy the data from the es_process_t so the ES message doesn't
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// need to be retained
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NSString *tty = santa::common::StringToNSString(proc->tty->path.data);
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dispatch_async(q_, ^{
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int fd = open(tty.UTF8String, O_WRONLY | O_NOCTTY);
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if (fd == -1) {
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LOGW(@"Failed to open TTY for writing: %s", strerror(errno));
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return;
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}
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std::string_view str = santa::common::NSStringToUTF8StringView(msg);
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write(fd, str.data(), str.length());
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close(fd);
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});
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}
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} // namespace santa::santad
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