mirror of
https://github.com/holdmysocks/ps5-tailscale.git
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holdmysocks
01b6381444
The console's Remote Play service uses UDP 9295, 9296, 9297 and 9302 next to TCP 9295. tsnet has no catch-all for UDP, so the daemon now listens on the ports in the new udpPorts setting (those four by default) on its tailnet addresses and relays them to localhost. The UDP relay is shared with the local forwards.
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* Ask the console's Remote Play service for its discovery reply over
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* loopback, to confirm it answers clients that arrive from 127.0.0.1 (which
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* is how the daemon's UDP relay reaches it). Read-only. */
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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int
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main(void) {
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static const char req[] = "SRCH * HTTP/1.1\ndevice-discovery-protocol-version:00030010\n";
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struct sockaddr_in addr = {0};
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struct timeval tv = {3, 0};
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char buf[1024];
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int fd = socket(AF_INET, SOCK_DGRAM, 0);
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ssize_t n;
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setvbuf(stdout, 0, _IONBF, 0);
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addr.sin_family = AF_INET;
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addr.sin_port = htons(9302);
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addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
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sendto(fd, req, sizeof(req) - 1, 0, (struct sockaddr *)&addr, sizeof(addr));
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n = recv(fd, buf, sizeof(buf) - 1, 0);
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if (n <= 0) {
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printf("discovery via 127.0.0.1:9302: no reply\n");
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} else {
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buf[n] = 0;
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buf[strcspn(buf, "\r\n")] = 0;
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printf("discovery via 127.0.0.1:9302: %s\n", buf);
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}
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close(fd);
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return 0;
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}
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