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lorawan: set devNonce to new random value on each attempt to join

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Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram
2023-01-15 18:09:13 +01:00
parent e296fa822b
commit 632cc964d5
1 changed files with 6 additions and 0 deletions
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lora/lorawan/otaa.go
+6
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@@ -21,6 +21,10 @@ type Otaa struct {
func (o *Otaa) Init() { func (o *Otaa) Init() {
o.buf = make([]uint8, 0) o.buf = make([]uint8, 0)
o.generateDevNonce()
}
func (o *Otaa) generateDevNonce() {
// TODO: handle error // TODO: handle error
rnd, _ := GetRand16() rnd, _ := GetRand16()
o.devNonce[0] = rnd[0] o.devNonce[0] = rnd[0]
@@ -95,6 +99,8 @@ func (o *Otaa) SetNetID(netID []uint8) error {
// GenerateJoinRequest Generates a LoraWAN Join request // GenerateJoinRequest Generates a LoraWAN Join request
func (o *Otaa) GenerateJoinRequest() ([]uint8, error) { func (o *Otaa) GenerateJoinRequest() ([]uint8, error) {
o.generateDevNonce()
// TODO: Add checks // TODO: Add checks
o.buf = o.buf[:0] o.buf = o.buf[:0]
o.buf = append(o.buf, 0x00) o.buf = append(o.buf, 0x00)