Prevent possible race condition
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5f1174de27
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b28668e18d
@ -148,21 +148,20 @@ void SARFirstStageInit::traced_exec_init() {
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// Swap out init with bind mount
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xmount("tmpfs", "/dev", "tmpfs", 0, "mode=755");
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int init = xopen("/dev/magisk", O_CREAT | O_WRONLY, 0750);
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int init = xopen("/dev/magiskinit", O_CREAT | O_WRONLY, 0750);
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write(init, self.buf, self.sz);
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close(init);
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xmount("/dev/magisk", "/init", nullptr, MS_BIND, nullptr);
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xmount("/dev/magiskinit", "/init", nullptr, MS_BIND, nullptr);
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xumount2("/dev", MNT_DETACH);
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xptrace(PTRACE_DETACH, pid);
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// Start daemon for 2nd stage preparation
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// Establish socket for 2nd stage ack
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struct sockaddr_un sun{};
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auto len = setup_sockaddr(&sun);
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int sockfd = xsocket(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0);
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xbind(sockfd, (struct sockaddr*) &sun, len);
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xbind(sockfd, (struct sockaddr*) &sun, setup_sockaddr(&sun));
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xlisten(sockfd, 1);
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xptrace(PTRACE_DETACH, pid);
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// Wait for second stage ack
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int client = xaccept4(sockfd, nullptr, nullptr, SOCK_CLOEXEC);
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