39 lines
958 B
C
39 lines
958 B
C
#include "packet.h"
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#include "packet_utils.h"
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#include "cwpack/cwpack.h"
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#define PKT_HEADER_ELEMENTS 2
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pkt_handler pkt_handlers[] = {
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{.id = MSG_ID_01_WELCOME, .handler = pkt_01_welcome_handler},
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};
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uint8_t pkt_buffer[PKT_BUFSIZ];
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int32_t pkt_header_encode(pkt_header *table) {
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return 0;
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}
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int32_t pkt_header_decode(pkt_header *table, void *data, size_t datalen) {
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cw_unpack_context uc = {0};
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pkt_unpack_msg_raw(&uc, data, datalen, PKT_HEADER_ELEMENTS);
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cw_unpack_next(&uc);
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if (uc.item.type != CWP_ITEM_POSITIVE_INTEGER || uc.item.as.u64 > UINT16_MAX) {
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return -1; // invalid packet id
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}
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uint16_t pkt_id = (uint16_t)uc.item.as.u64;
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cw_unpack_next(&uc);
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const void *packed_blob = uc.item.as.bin.start;
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uint32_t packed_size = uc.item.as.bin.length;
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table->id = pkt_id;
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table->data = packed_blob;
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table->datalen = packed_size;
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table->ok = 1;
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return pkt_validate_eof_msg(&uc);
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}
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