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sys/netipsec/xform_esp.c
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| * ESP input callback from the crypto driver. | * ESP input callback from the crypto driver. | ||||
| */ | */ | ||||
| static int | static int | ||||
| esp_input_cb(struct cryptop *crp) | esp_input_cb(struct cryptop *crp) | ||||
| { | { | ||||
| char buf[128]; | char buf[128]; | ||||
| u_int8_t lastthree[3], aalg[AH_HMAC_MAXHASHLEN]; | u_int8_t lastthree[3], aalg[AH_HMAC_MAXHASHLEN]; | ||||
| const struct auth_hash *esph; | const struct auth_hash *esph; | ||||
| const struct enc_xform *espx; | |||||
| struct mbuf *m; | struct mbuf *m; | ||||
| struct cryptodesc *crd; | struct cryptodesc *crd; | ||||
| struct xform_data *xd; | struct xform_data *xd; | ||||
| struct secasvar *sav; | struct secasvar *sav; | ||||
| struct secasindex *saidx; | struct secasindex *saidx; | ||||
| caddr_t ptr; | caddr_t ptr; | ||||
| uint64_t cryptoid; | uint64_t cryptoid; | ||||
| int hlen, skip, protoff, error, alen; | int hlen, skip, protoff, error, alen; | ||||
| crd = crp->crp_desc; | crd = crp->crp_desc; | ||||
| IPSEC_ASSERT(crd != NULL, ("null crypto descriptor!")); | IPSEC_ASSERT(crd != NULL, ("null crypto descriptor!")); | ||||
| m = (struct mbuf *) crp->crp_buf; | m = (struct mbuf *) crp->crp_buf; | ||||
| xd = (struct xform_data *) crp->crp_opaque; | xd = (struct xform_data *) crp->crp_opaque; | ||||
| sav = xd->sav; | sav = xd->sav; | ||||
| skip = xd->skip; | skip = xd->skip; | ||||
| protoff = xd->protoff; | protoff = xd->protoff; | ||||
| cryptoid = xd->cryptoid; | cryptoid = xd->cryptoid; | ||||
| saidx = &sav->sah->saidx; | saidx = &sav->sah->saidx; | ||||
| esph = sav->tdb_authalgxform; | esph = sav->tdb_authalgxform; | ||||
| espx = sav->tdb_encalgxform; | |||||
| /* Check for crypto errors */ | /* Check for crypto errors */ | ||||
| if (crp->crp_etype) { | if (crp->crp_etype) { | ||||
| if (crp->crp_etype == EAGAIN) { | if (crp->crp_etype == EAGAIN) { | ||||
| /* Reset the session ID */ | /* Reset the session ID */ | ||||
| if (ipsec_updateid(sav, &crp->crp_sid, &cryptoid) != 0) | if (ipsec_updateid(sav, &crp->crp_sid, &cryptoid) != 0) | ||||
| crypto_freesession(cryptoid); | crypto_freesession(cryptoid); | ||||
| xd->cryptoid = crp->crp_sid; | xd->cryptoid = crp->crp_sid; | ||||
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