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Fixes compatibility with Mikrotik.
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parent
b54ad333b3
commit
1155c79209
@ -60,12 +60,16 @@ ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
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struct MD5Context ctxt;
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struct MD5Context ctxt;
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char password[OSPF_AUTH_CRYPT_SIZE];
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char password[OSPF_AUTH_CRYPT_SIZE];
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pkt->checksum = 0;
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pkt->autype = htons(ifa->autype);
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pkt->autype = htons(ifa->autype);
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bzero(&pkt->u, sizeof(union ospf_auth));
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/* Compatibility note: pkt->u may contain anything if autype is
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none, but nonzero values do not work with Mikrotik OSPF */
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switch(ifa->autype)
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switch(ifa->autype)
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{
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{
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case OSPF_AUTH_SIMPLE:
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case OSPF_AUTH_SIMPLE:
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bzero(&pkt->u, sizeof(union ospf_auth));
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passwd = password_find(ifa->passwords, 1);
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passwd = password_find(ifa->passwords, 1);
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if (!passwd)
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if (!passwd)
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{
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{
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@ -74,7 +78,6 @@ ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
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}
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}
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password_cpy(pkt->u.password, passwd->password, sizeof(union ospf_auth));
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password_cpy(pkt->u.password, passwd->password, sizeof(union ospf_auth));
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case OSPF_AUTH_NONE:
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case OSPF_AUTH_NONE:
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pkt->checksum = 0;
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pkt->checksum = ipsum_calculate(pkt, sizeof(struct ospf_packet) -
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pkt->checksum = ipsum_calculate(pkt, sizeof(struct ospf_packet) -
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sizeof(union ospf_auth), (pkt + 1),
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sizeof(union ospf_auth), (pkt + 1),
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ntohs(pkt->length) -
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ntohs(pkt->length) -
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@ -88,8 +91,6 @@ ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
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return;
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return;
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}
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}
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pkt->checksum = 0;
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/* Perhaps use random value to prevent replay attacks after
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/* Perhaps use random value to prevent replay attacks after
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reboot when system does not have independent RTC? */
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reboot when system does not have independent RTC? */
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if (!ifa->csn)
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if (!ifa->csn)
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