diff options
Diffstat (limited to 'slirp/ncsi.c')
| -rw-r--r-- | slirp/ncsi.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/slirp/ncsi.c b/slirp/ncsi.c deleted file mode 100644 index 8594382270..0000000000 --- a/slirp/ncsi.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * NC-SI (Network Controller Sideband Interface) "echo" model - * - * Copyright (C) 2016-2018 IBM Corp. - * - * This code is licensed under the GPL version 2 or later. See the - * COPYING file in the top-level directory. - */ -#include "qemu/osdep.h" -#include "slirp.h" - -#include "ncsi-pkt.h" - -static uint32_t ncsi_calculate_checksum(uint16_t *data, int len) -{ - uint32_t checksum = 0; - int i; - - /* - * 32-bit unsigned sum of the NC-SI packet header and NC-SI packet - * payload interpreted as a series of 16-bit unsigned integer values. - */ - for (i = 0; i < len; i++) { - checksum += htons(data[i]); - } - - checksum = (~checksum + 1); - return checksum; -} - -/* Get Capabilities */ -static int ncsi_rsp_handler_gc(struct ncsi_rsp_pkt_hdr *rnh) -{ - struct ncsi_rsp_gc_pkt *rsp = (struct ncsi_rsp_gc_pkt *) rnh; - - rsp->cap = htonl(~0); - rsp->bc_cap = htonl(~0); - rsp->mc_cap = htonl(~0); - rsp->buf_cap = htonl(~0); - rsp->aen_cap = htonl(~0); - rsp->vlan_mode = 0xff; - rsp->uc_cnt = 2; - return 0; -} - -/* Get Link status */ -static int ncsi_rsp_handler_gls(struct ncsi_rsp_pkt_hdr *rnh) -{ - struct ncsi_rsp_gls_pkt *rsp = (struct ncsi_rsp_gls_pkt *) rnh; - - rsp->status = htonl(0x1); - return 0; -} - -/* Get Parameters */ -static int ncsi_rsp_handler_gp(struct ncsi_rsp_pkt_hdr *rnh) -{ - struct ncsi_rsp_gp_pkt *rsp = (struct ncsi_rsp_gp_pkt *) rnh; - - /* no MAC address filters or VLAN filters on the channel */ - rsp->mac_cnt = 0; - rsp->mac_enable = 0; - rsp->vlan_cnt = 0; - rsp->vlan_enable = 0; - - return 0; -} - -static const struct ncsi_rsp_handler { - unsigned char type; - int payload; - int (*handler)(struct ncsi_rsp_pkt_hdr *rnh); -} ncsi_rsp_handlers[] = { - { NCSI_PKT_RSP_CIS, 4, NULL }, - { NCSI_PKT_RSP_SP, 4, NULL }, - { NCSI_PKT_RSP_DP, 4, NULL }, - { NCSI_PKT_RSP_EC, 4, NULL }, - { NCSI_PKT_RSP_DC, 4, NULL }, - { NCSI_PKT_RSP_RC, 4, NULL }, - { NCSI_PKT_RSP_ECNT, 4, NULL }, - { NCSI_PKT_RSP_DCNT, 4, NULL }, - { NCSI_PKT_RSP_AE, 4, NULL }, - { NCSI_PKT_RSP_SL, 4, NULL }, - { NCSI_PKT_RSP_GLS, 16, ncsi_rsp_handler_gls }, - { NCSI_PKT_RSP_SVF, 4, NULL }, - { NCSI_PKT_RSP_EV, 4, NULL }, - { NCSI_PKT_RSP_DV, 4, NULL }, - { NCSI_PKT_RSP_SMA, 4, NULL }, - { NCSI_PKT_RSP_EBF, 4, NULL }, - { NCSI_PKT_RSP_DBF, 4, NULL }, - { NCSI_PKT_RSP_EGMF, 4, NULL }, - { NCSI_PKT_RSP_DGMF, 4, NULL }, - { NCSI_PKT_RSP_SNFC, 4, NULL }, - { NCSI_PKT_RSP_GVI, 40, NULL }, - { NCSI_PKT_RSP_GC, 32, ncsi_rsp_handler_gc }, - { NCSI_PKT_RSP_GP, 40, ncsi_rsp_handler_gp }, - { NCSI_PKT_RSP_GCPS, 172, NULL }, - { NCSI_PKT_RSP_GNS, 172, NULL }, - { NCSI_PKT_RSP_GNPTS, 172, NULL }, - { NCSI_PKT_RSP_GPS, 8, NULL }, - { NCSI_PKT_RSP_OEM, 0, NULL }, - { NCSI_PKT_RSP_PLDM, 0, NULL }, - { NCSI_PKT_RSP_GPUUID, 20, NULL } -}; - -/* - * packet format : ncsi header + payload + checksum - */ -#define NCSI_MAX_PAYLOAD 172 -#define NCSI_MAX_LEN (sizeof(struct ncsi_pkt_hdr) + NCSI_MAX_PAYLOAD + 4) - -void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) -{ - struct ncsi_pkt_hdr *nh = (struct ncsi_pkt_hdr *)(pkt + ETH_HLEN); - uint8_t ncsi_reply[ETH_HLEN + NCSI_MAX_LEN]; - struct ethhdr *reh = (struct ethhdr *)ncsi_reply; - struct ncsi_rsp_pkt_hdr *rnh = (struct ncsi_rsp_pkt_hdr *) - (ncsi_reply + ETH_HLEN); - const struct ncsi_rsp_handler *handler = NULL; - int i; - int ncsi_rsp_len = sizeof(*nh); - uint32_t checksum; - uint32_t *pchecksum; - - memset(ncsi_reply, 0, sizeof(ncsi_reply)); - - memset(reh->h_dest, 0xff, ETH_ALEN); - memset(reh->h_source, 0xff, ETH_ALEN); - reh->h_proto = htons(ETH_P_NCSI); - - for (i = 0; i < G_N_ELEMENTS(ncsi_rsp_handlers); i++) { - if (ncsi_rsp_handlers[i].type == nh->type + 0x80) { - handler = &ncsi_rsp_handlers[i]; - break; - } - } - - rnh->common.mc_id = nh->mc_id; - rnh->common.revision = NCSI_PKT_REVISION; - rnh->common.id = nh->id; - rnh->common.type = nh->type + 0x80; - rnh->common.channel = nh->channel; - - if (handler) { - rnh->common.length = htons(handler->payload); - rnh->code = htons(NCSI_PKT_RSP_C_COMPLETED); - rnh->reason = htons(NCSI_PKT_RSP_R_NO_ERROR); - - if (handler->handler) { - /* TODO: handle errors */ - handler->handler(rnh); - } - ncsi_rsp_len += handler->payload; - } else { - rnh->common.length = 0; - rnh->code = htons(NCSI_PKT_RSP_C_UNAVAILABLE); - rnh->reason = htons(NCSI_PKT_RSP_R_UNKNOWN); - } - - /* Add the optional checksum at the end of the frame. */ - checksum = ncsi_calculate_checksum((uint16_t *) rnh, ncsi_rsp_len); - pchecksum = (uint32_t *)((void *) rnh + ncsi_rsp_len); - *pchecksum = htonl(checksum); - ncsi_rsp_len += 4; - - slirp->cb->output(slirp->opaque, ncsi_reply, ETH_HLEN + ncsi_rsp_len); -} |