mptcp: allow creating non-backup subflows
Currently the 'backup' attribute of local endpoint is ignored. Let's use it for the MP_JOIN handshake Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -20,6 +20,7 @@
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#include <net/ip6_route.h>
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#endif
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#include <net/mptcp.h>
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#include <uapi/linux/mptcp.h>
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#include "protocol.h"
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#include "mib.h"
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@ -1090,7 +1091,7 @@ int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,
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subflow->remote_token = remote_token;
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subflow->local_id = local_id;
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subflow->request_join = 1;
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subflow->request_bkup = 1;
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subflow->request_bkup = !!(loc->flags & MPTCP_PM_ADDR_FLAG_BACKUP);
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mptcp_info2sockaddr(remote, &addr);
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err = kernel_connect(sf, (struct sockaddr *)&addr, addrlen, O_NONBLOCK);
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