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Add the option on path creator to specify the incoming channel on blinded path #9127

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Add the option on path creator to specify the incoming channel on blinded path #9127

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8c46904
lnrpc: add the options to set the income channel on a blinded path
MPins Sep 21, 2024
2f96a84
commands: add option to set the income channel on blinded path
MPins Sep 21, 2024
2d9891a
routing: add the option to set the income channel on blinded path
MPins Sep 21, 2024
99d5f25
lnd: add the option to set the income channel on blinded path
MPins Sep 21, 2024
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23 changes: 22 additions & 1 deletion cmd/commands/cmd_invoice.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import (
"encoding/hex"
"fmt"
"strconv"
"strings"

"github.com/lightningnetwork/lnd/lnrpc"
"github.com/urfave/cli"
Expand Down Expand Up @@ -116,6 +117,11 @@ var AddInvoiceCommand = cli.Command{
"use on a blinded path. The flag may be " +
"specified multiple times.",
},
cli.StringSliceFlag{
Name: "blinded_path_income_channel",
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blinded_path_income_channel => blinded_path_incoming_channel_list

Usage: "The chained channels ids to be used in a " +
"blinded path as the income hops.",
Comment on lines +122 to +123
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Suggested change
Usage: "The chained channels ids to be used in a " +
"blinded path as the income hops.",
Chained channels (specified via channel id) starting from the receiver node which shall be used for the blinded path.

},
},
Action: actionDecorator(addInvoice),
}
Expand Down Expand Up @@ -202,7 +208,8 @@ func parseBlindedPathCfg(ctx *cli.Context) (*lnrpc.BlindedPathConfig, error) {
if ctx.IsSet("min_real_blinded_hops") ||
ctx.IsSet("num_blinded_hops") ||
ctx.IsSet("max_blinded_paths") ||
ctx.IsSet("blinded_path_omit_node") {
ctx.IsSet("blinded_path_omit_node") ||
ctx.IsSet("blinded_path_income_channel") {

return nil, fmt.Errorf("blinded path options are " +
"only used if the `--blind` options is set")
Expand Down Expand Up @@ -239,6 +246,20 @@ func parseBlindedPathCfg(ctx *cli.Context) (*lnrpc.BlindedPathConfig, error) {
)
}

if ctx.IsSet("blinded_path_income_channel") {
channels := strings.Split(
ctx.String("blinded_path_income_channel"), ",")
for _, chanID := range channels {
channelID, err := strconv.ParseUint(chanID, 10, 64)
if err != nil {
return nil, err
}
blindCfg.ChannelIncomeList = append(
blindCfg.ChannelIncomeList, channelID,
)
}
}

return &blindCfg, nil
}

Expand Down