efi, udp: fill out the IP TTL fieldsyslinux-6.01-pre3

Some firmware implementations fill out a default value for the Time To
Live field when none is set, others do not. Since the UEFI specification
doesn't mandate that the firmware set this field, we need to do it
ourselves. Pick the recommended value of 64.

Signed-off-by: Matt Fleming <matt.fleming@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/efi/udp.c b/efi/udp.c
index 69706e84..301074d0 100644
--- a/efi/udp.c
+++ b/efi/udp.c
@@ -105,6 +105,7 @@ void core_udp_connect(struct pxe_pvt_inode *socket, uint32_t ip,
     memcpy(&udata.RemoteAddress, &ip, sizeof(ip));
     udata.RemotePort = port;
     udata.AcceptPromiscuous = TRUE;
+    udata.TimeToLive = 64;
 
     status = uefi_call_wrapper(udp->Configure, 2, udp, &udata);
     if (status != EFI_SUCCESS) {