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conf: add directives to specify interfaces for binding sockets

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Add binddevice, bindacqdevice, and bindcmddevice directive to specify
the interface for binding the NTP server, NTP client, and command socket
respectively.
This commit is contained in:
Miroslav Lichvar
2020-06-30 12:27:10 +02:00
parent 4ef944b734
commit c4a2550518
6 changed files with 96 additions and 12 deletions
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10
ntp_io.c
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@@ -85,14 +85,18 @@ open_socket(int family, int local_port, int client_only, IPSockAddr *remote_addr
{
int sock_fd, sock_flags, events = SCH_FILE_INPUT;
IPSockAddr local_addr;
char *iface;
if (!SCK_IsIpFamilyEnabled(family))
return INVALID_SOCK_FD;
if (!client_only)
if (!client_only) {
CNF_GetBindAddress(family, &local_addr.ip_addr);
else
iface = CNF_GetBindNtpInterface();
} else {
CNF_GetBindAcquisitionAddress(family, &local_addr.ip_addr);
iface = CNF_GetBindAcquisitionInterface();
}
if (local_addr.ip_addr.family != family)
SCK_GetAnyLocalIPAddress(family, &local_addr.ip_addr);
@@ -103,7 +107,7 @@ open_socket(int family, int local_port, int client_only, IPSockAddr *remote_addr
if (!client_only)
sock_flags |= SCK_FLAG_BROADCAST;
sock_fd = SCK_OpenUdpSocket(remote_addr, &local_addr, NULL, sock_flags);
sock_fd = SCK_OpenUdpSocket(remote_addr, &local_addr, iface, sock_flags);
if (sock_fd < 0) {
if (!client_only)
LOG(LOGS_ERR, "Could not open NTP socket on %s", UTI_IPSockAddrToString(&local_addr));