Merge bitcoin/bitcoin#36145: qa: Use IP_PORTRANGE_HIGH on OpenBSD for dynamic port allocation

59ebf558f3 qa: Use IP_PORTRANGE_HIGH on OpenBSD for dynamic port allocation (Hennadii Stepanov)

Pull request description:

  The default ephemeral port range on OpenBSD (1024-49151) overlaps with the test framework's static port range starting at `TEST_RUNNER_PORT_MIN`, the same way FreeBSD's does (see #34346).

  Extend `set_ephemeral_port_range()` to OpenBSD. The socket option and its values are identical to FreeBSD's, so only the platform check changes.

ACKs for top commit:
  maflcko:
    lgtm ACK 59ebf558f3
  theStack:
    utACK 59ebf558f3

Tree-SHA512: 680235cf3e1799361796c0ff36d5f19bf74f79393057dbd7b38b0e92a7df3af669873c66ca1e82f1c78999c20351663b8960990f3f209af89ee18ce0773eb7de
This commit is contained in:
merge-script
2026-09-03 09:12:11 +01:00

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@@ -257,15 +257,16 @@ def format_sock(sock, *, local):
def set_ephemeral_port_range(sock):
'''On FreeBSD, set socket to use the high ephemeral port range (49152-65535).
'''On FreeBSD and OpenBSD, set socket to use the high ephemeral port range (49152-65535).
FreeBSD's default ephemeral port range (10000-65535) overlaps with the test
framework's static port range starting at TEST_RUNNER_PORT_MIN (default=11000).
The default ephemeral port ranges on FreeBSD (10000-65535) and
OpenBSD (1024-49151) overlap with the test framework's static port
range starting at TEST_RUNNER_PORT_MIN (default=11000).
Using IP_PORTRANGE_HIGH avoids this overlap when binding to port 0 for dynamic
port allocation.
'''
if sys.platform.startswith('freebsd'):
# Constants from FreeBSD's netinet/in.h and netinet6/in6.h
if sys.platform.startswith(("freebsd", "openbsd")):
# Constants from FreeBSD/OpenBSD's netinet/in.h and netinet6/in6.h
IP_PORTRANGE = 19
IPV6_PORTRANGE = 14
IP_PORTRANGE_HIGH = 1 # Same value for both IPv4 and IPv6