Date: Thu, 13 Jun 2019 17:39:33 +0000 (UTC) From: Vincenzo Maffione <vmaffione@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r349019 - head/usr.sbin/bhyve Message-ID: <201906131739.x5DHdX93034129@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: vmaffione Date: Thu Jun 13 17:39:32 2019 New Revision: 349019 URL: https://svnweb.freebsd.org/changeset/base/349019 Log: bhyve: move common code to net_utils.c Both virtio_net and e82545 network frontends have code to validate and generate MAC addresses. These functionalities are replicated in the two files, so we move them in a separate compilation unit. Reviewed by: rgrimes, bryanv, imp, kevans MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20626 Added: head/usr.sbin/bhyve/net_utils.c (contents, props changed) head/usr.sbin/bhyve/net_utils.h (contents, props changed) Modified: head/usr.sbin/bhyve/Makefile head/usr.sbin/bhyve/pci_e82545.c head/usr.sbin/bhyve/pci_virtio_net.c Modified: head/usr.sbin/bhyve/Makefile ============================================================================== --- head/usr.sbin/bhyve/Makefile Thu Jun 13 16:34:55 2019 (r349018) +++ head/usr.sbin/bhyve/Makefile Thu Jun 13 17:39:32 2019 (r349019) @@ -32,6 +32,7 @@ SRCS= \ mem.c \ mevent.c \ mptbl.c \ + net_utils.c \ pci_ahci.c \ pci_e82545.c \ pci_emul.c \ Added: head/usr.sbin/bhyve/net_utils.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/usr.sbin/bhyve/net_utils.c Thu Jun 13 17:39:32 2019 (r349019) @@ -0,0 +1,83 @@ +/*- + * Copyright (c) 2011 NetApp, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include "net_utils.h" +#include "bhyverun.h" +#include <md5.h> +#include <net/ethernet.h> +#include <string.h> +#include <stdio.h> +#include <errno.h> + +int +net_parsemac(char *mac_str, uint8_t *mac_addr) +{ + struct ether_addr *ea; + char *tmpstr; + char zero_addr[ETHER_ADDR_LEN] = { 0, 0, 0, 0, 0, 0 }; + + tmpstr = strsep(&mac_str,"="); + + if ((mac_str != NULL) && (!strcmp(tmpstr,"mac"))) { + ea = ether_aton(mac_str); + + if (ea == NULL || ETHER_IS_MULTICAST(ea->octet) || + memcmp(ea->octet, zero_addr, ETHER_ADDR_LEN) == 0) { + fprintf(stderr, "Invalid MAC %s\n", mac_str); + return (EINVAL); + } else + memcpy(mac_addr, ea->octet, ETHER_ADDR_LEN); + } + + return (0); +} + +void +net_genmac(struct pci_devinst *pi, uint8_t *macaddr) +{ + /* + * The default MAC address is the standard NetApp OUI of 00-a0-98, + * followed by an MD5 of the PCI slot/func number and dev name + */ + MD5_CTX mdctx; + unsigned char digest[16]; + char nstr[80]; + + snprintf(nstr, sizeof(nstr), "%d-%d-%s", pi->pi_slot, + pi->pi_func, vmname); + + MD5Init(&mdctx); + MD5Update(&mdctx, nstr, (unsigned int)strlen(nstr)); + MD5Final(digest, &mdctx); + + macaddr[0] = 0x00; + macaddr[1] = 0xa0; + macaddr[2] = 0x98; + macaddr[3] = digest[0]; + macaddr[4] = digest[1]; + macaddr[5] = digest[2]; +} Added: head/usr.sbin/bhyve/net_utils.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/usr.sbin/bhyve/net_utils.h Thu Jun 13 17:39:32 2019 (r349019) @@ -0,0 +1,37 @@ +/*- + * Copyright (c) 2019 Vincenzo Maffione <v.maffione@gmail.com> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _NET_UTILS_H_ +#define _NET_UTILS_H_ + +#include <stdint.h> +#include "pci_emul.h" + +void net_genmac(struct pci_devinst *pi, uint8_t *macaddr); +int net_parsemac(char *mac_str, uint8_t *mac_addr); + +#endif /* _NET_UTILS_H_ */ Modified: head/usr.sbin/bhyve/pci_e82545.c ============================================================================== --- head/usr.sbin/bhyve/pci_e82545.c Thu Jun 13 16:34:55 2019 (r349018) +++ head/usr.sbin/bhyve/pci_e82545.c Thu Jun 13 17:39:32 2019 (r349019) @@ -65,6 +65,7 @@ __FBSDID("$FreeBSD$"); #include "bhyverun.h" #include "pci_emul.h" #include "mevent.h" +#include "net_utils.h" /* Hardware/register definitions XXX: move some to common code. */ #define E82545_VENDOR_ID_INTEL 0x8086 @@ -2259,38 +2260,16 @@ e82545_open_tap(struct e82545_softc *sc, char *opts) } static int -e82545_parsemac(char *mac_str, uint8_t *mac_addr) -{ - struct ether_addr *ea; - char *tmpstr; - char zero_addr[ETHER_ADDR_LEN] = { 0, 0, 0, 0, 0, 0 }; - - tmpstr = strsep(&mac_str,"="); - if ((mac_str != NULL) && (!strcmp(tmpstr,"mac"))) { - ea = ether_aton(mac_str); - if (ea == NULL || ETHER_IS_MULTICAST(ea->octet) || - memcmp(ea->octet, zero_addr, ETHER_ADDR_LEN) == 0) { - fprintf(stderr, "Invalid MAC %s\n", mac_str); - return (1); - } else - memcpy(mac_addr, ea->octet, ETHER_ADDR_LEN); - } - return (0); -} - -static int e82545_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts) { - DPRINTF("Loading with options: %s\r\n", opts); - - MD5_CTX mdctx; - unsigned char digest[16]; char nstr[80]; struct e82545_softc *sc; char *devname; char *vtopts; int mac_provided; + DPRINTF("Loading with options: %s\r\n", opts); + /* Setup our softc */ sc = calloc(1, sizeof(*sc)); @@ -2340,7 +2319,7 @@ e82545_init(struct vmctx *ctx, struct pci_devinst *pi, (void) strsep(&vtopts, ","); if (vtopts != NULL) { - err = e82545_parsemac(vtopts, sc->esc_mac.octet); + err = net_parsemac(vtopts, sc->esc_mac.octet); if (err != 0) { free(devname); return (err); @@ -2355,24 +2334,8 @@ e82545_init(struct vmctx *ctx, struct pci_devinst *pi, free(devname); } - /* - * The default MAC address is the standard NetApp OUI of 00-a0-98, - * followed by an MD5 of the PCI slot/func number and dev name - */ if (!mac_provided) { - snprintf(nstr, sizeof(nstr), "%d-%d-%s", pi->pi_slot, - pi->pi_func, vmname); - - MD5Init(&mdctx); - MD5Update(&mdctx, nstr, strlen(nstr)); - MD5Final(digest, &mdctx); - - sc->esc_mac.octet[0] = 0x00; - sc->esc_mac.octet[1] = 0xa0; - sc->esc_mac.octet[2] = 0x98; - sc->esc_mac.octet[3] = digest[0]; - sc->esc_mac.octet[4] = digest[1]; - sc->esc_mac.octet[5] = digest[2]; + net_genmac(pi, sc->esc_mac.octet); } /* H/w initiated reset */ Modified: head/usr.sbin/bhyve/pci_virtio_net.c ============================================================================== --- head/usr.sbin/bhyve/pci_virtio_net.c Thu Jun 13 16:34:55 2019 (r349018) +++ head/usr.sbin/bhyve/pci_virtio_net.c Thu Jun 13 17:39:32 2019 (r349019) @@ -67,6 +67,7 @@ __FBSDID("$FreeBSD$"); #include "pci_emul.h" #include "mevent.h" #include "virtio.h" +#include "net_utils.h" #define VTNET_RINGSZ 1024 @@ -698,29 +699,6 @@ pci_vtnet_ping_ctlq(void *vsc, struct vqueue_info *vq) } #endif -static int -pci_vtnet_parsemac(char *mac_str, uint8_t *mac_addr) -{ - struct ether_addr *ea; - char *tmpstr; - char zero_addr[ETHER_ADDR_LEN] = { 0, 0, 0, 0, 0, 0 }; - - tmpstr = strsep(&mac_str,"="); - - if ((mac_str != NULL) && (!strcmp(tmpstr,"mac"))) { - ea = ether_aton(mac_str); - - if (ea == NULL || ETHER_IS_MULTICAST(ea->octet) || - memcmp(ea->octet, zero_addr, ETHER_ADDR_LEN) == 0) { - fprintf(stderr, "Invalid MAC %s\n", mac_str); - return (EINVAL); - } else - memcpy(mac_addr, ea->octet, ETHER_ADDR_LEN); - } - - return (0); -} - static void pci_vtnet_tap_setup(struct pci_vtnet_softc *sc, char *devname) { @@ -795,9 +773,6 @@ pci_vtnet_netmap_setup(struct pci_vtnet_softc *sc, cha static int pci_vtnet_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts) { - MD5_CTX mdctx; - unsigned char digest[16]; - char nstr[80]; char tname[MAXCOMLEN + 1]; struct pci_vtnet_softc *sc; char *devname; @@ -834,7 +809,7 @@ pci_vtnet_init(struct vmctx *ctx, struct pci_devinst * (void) strsep(&vtopts, ","); if (vtopts != NULL) { - err = pci_vtnet_parsemac(vtopts, sc->vsc_config.mac); + err = net_parsemac(vtopts, sc->vsc_config.mac); if (err != 0) { free(devname); return (err); @@ -851,24 +826,8 @@ pci_vtnet_init(struct vmctx *ctx, struct pci_devinst * free(devname); } - /* - * The default MAC address is the standard NetApp OUI of 00-a0-98, - * followed by an MD5 of the PCI slot/func number and dev name - */ if (!mac_provided) { - snprintf(nstr, sizeof(nstr), "%d-%d-%s", pi->pi_slot, - pi->pi_func, vmname); - - MD5Init(&mdctx); - MD5Update(&mdctx, nstr, strlen(nstr)); - MD5Final(digest, &mdctx); - - sc->vsc_config.mac[0] = 0x00; - sc->vsc_config.mac[1] = 0xa0; - sc->vsc_config.mac[2] = 0x98; - sc->vsc_config.mac[3] = digest[0]; - sc->vsc_config.mac[4] = digest[1]; - sc->vsc_config.mac[5] = digest[2]; + net_genmac(pi, sc->vsc_config.mac); } /* initialize config space */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201906131739.x5DHdX93034129>