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Merge pull request #1663 from donaldsharp/mpls

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Mpls
This commit is contained in:
Renato Westphal 2018-01-22 17:43:10 -02:00 committed by GitHub
commit c1927369d6
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GPG Key ID: 4AEE18F83AFDEB23
14 changed files with 47 additions and 55 deletions
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6
lib/mpls.h
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@ -81,6 +81,12 @@ typedef unsigned int mpls_lse_t;
/* MPLS label value as a 32-bit (mostly we only care about the label value). */ /* MPLS label value as a 32-bit (mostly we only care about the label value). */
typedef unsigned int mpls_label_t; typedef unsigned int mpls_label_t;
struct mpls_label_stack {
uint8_t num_labels;
uint8_t reserved[3];
mpls_label_t label[0]; /* 1 or more labels */
};
/* The MPLS explicit-null label is 0 which means when you memset a mpls_label_t /* The MPLS explicit-null label is 0 which means when you memset a mpls_label_t
* to zero you have set that variable to explicit-null which was probably not * to zero you have set that variable to explicit-null which was probably not
* your intent. The work-around is to use one bit to indicate if the * your intent. The work-around is to use one bit to indicate if the

6
lib/nexthop.c
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@ -124,7 +124,7 @@ const char *nexthop_type_to_str(enum nexthop_types_t nh_type)
*/ */
int nexthop_labels_match(struct nexthop *nh1, struct nexthop *nh2) int nexthop_labels_match(struct nexthop *nh1, struct nexthop *nh2)
{ {
struct nexthop_label *nhl1, *nhl2; struct mpls_label_stack *nhl1, *nhl2;
nhl1 = nh1->nh_label; nhl1 = nh1->nh_label;
nhl2 = nh2->nh_label; nhl2 = nh2->nh_label;
@ -210,12 +210,12 @@ void nexthops_free(struct nexthop *nexthop)
void nexthop_add_labels(struct nexthop *nexthop, enum lsp_types_t type, void nexthop_add_labels(struct nexthop *nexthop, enum lsp_types_t type,
u_int8_t num_labels, mpls_label_t *label) u_int8_t num_labels, mpls_label_t *label)
{ {
struct nexthop_label *nh_label; struct mpls_label_stack *nh_label;
int i; int i;
nexthop->nh_label_type = type; nexthop->nh_label_type = type;
nh_label = XCALLOC(MTYPE_NH_LABEL, nh_label = XCALLOC(MTYPE_NH_LABEL,
sizeof(struct nexthop_label) sizeof(struct mpls_label_stack)
+ num_labels * sizeof(mpls_label_t)); + num_labels * sizeof(mpls_label_t));
nh_label->num_labels = num_labels; nh_label->num_labels = num_labels;
for (i = 0; i < num_labels; i++) for (i = 0; i < num_labels; i++)

9
lib/nexthop.h
View File

@ -55,13 +55,6 @@ enum blackhole_type {
((type) == NEXTHOP_TYPE_IFINDEX || (type) == NEXTHOP_TYPE_BLACKHOLE) \ ((type) == NEXTHOP_TYPE_IFINDEX || (type) == NEXTHOP_TYPE_BLACKHOLE) \
? (type) : ((type) | 1) ? (type) : ((type) | 1)
/* Nexthop label structure. */
struct nexthop_label {
u_int8_t num_labels;
u_int8_t reserved[3];
mpls_label_t label[0]; /* 1 or more labels. */
};
/* Nexthop structure. */ /* Nexthop structure. */
struct nexthop { struct nexthop {
struct nexthop *next; struct nexthop *next;
@ -107,7 +100,7 @@ struct nexthop {
enum lsp_types_t nh_label_type; enum lsp_types_t nh_label_type;
/* Label(s) associated with this nexthop. */ /* Label(s) associated with this nexthop. */
struct nexthop_label *nh_label; struct mpls_label_stack *nh_label;
}; };
/* The following for loop allows to iterate over the nexthop /* The following for loop allows to iterate over the nexthop

2
zebra/label_manager.c
View File

@ -121,7 +121,7 @@ static int reply_error(int cmd, struct zserv *zserv, vrf_id_t vrf_id)
s = zserv->obuf; s = zserv->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, vrf_id); zclient_create_header(s, cmd, vrf_id);
/* result */ /* result */
stream_putc(s, 1); stream_putc(s, 1);

4
zebra/rt_netlink.c
View File

@ -803,7 +803,7 @@ static void _netlink_route_build_singlepath(const char *routedesc, int bytelen,
struct rtmsg *rtmsg, struct rtmsg *rtmsg,
size_t req_size, int cmd) size_t req_size, int cmd)
{ {
struct nexthop_label *nh_label; struct mpls_label_stack *nh_label;
mpls_lse_t out_lse[MPLS_MAX_LABELS]; mpls_lse_t out_lse[MPLS_MAX_LABELS];
char label_buf[256]; char label_buf[256];
@ -1003,7 +1003,7 @@ static void _netlink_route_build_multipath(const char *routedesc, int bytelen,
struct rtmsg *rtmsg, struct rtmsg *rtmsg,
union g_addr **src) union g_addr **src)
{ {
struct nexthop_label *nh_label; struct mpls_label_stack *nh_label;
mpls_lse_t out_lse[MPLS_MAX_LABELS]; mpls_lse_t out_lse[MPLS_MAX_LABELS];
char label_buf[256]; char label_buf[256];

2
zebra/rt_socket.c
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@ -67,7 +67,7 @@ static int sin_masklen(struct in_addr mask)
#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
#ifdef __OpenBSD__ #ifdef __OpenBSD__
static int kernel_rtm_add_labels(struct nexthop_label *nh_label, static int kernel_rtm_add_labels(struct mpls_label_stack *nh_label,
struct sockaddr_mpls *smpls) struct sockaddr_mpls *smpls)
{ {
if (nh_label->num_labels > 1) { if (nh_label->num_labels > 1) {

6
zebra/zebra_mpls.c
View File

@ -104,7 +104,7 @@ static zebra_nhlfe_t *nhlfe_add(zebra_lsp_t *lsp, enum lsp_types_t lsp_type,
ifindex_t ifindex, mpls_label_t out_label); ifindex_t ifindex, mpls_label_t out_label);
static int nhlfe_del(zebra_nhlfe_t *snhlfe); static int nhlfe_del(zebra_nhlfe_t *snhlfe);
static void nhlfe_out_label_update(zebra_nhlfe_t *nhlfe, static void nhlfe_out_label_update(zebra_nhlfe_t *nhlfe,
struct nexthop_label *nh_label); struct mpls_label_stack *nh_label);
static int mpls_lsp_uninstall_all(struct hash *lsp_table, zebra_lsp_t *lsp, static int mpls_lsp_uninstall_all(struct hash *lsp_table, zebra_lsp_t *lsp,
enum lsp_types_t type); enum lsp_types_t type);
static int mpls_static_lsp_uninstall_all(struct zebra_vrf *zvrf, static int mpls_static_lsp_uninstall_all(struct zebra_vrf *zvrf,
@ -457,7 +457,7 @@ static int fec_send(zebra_fec_t *fec, struct zserv *client)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_FEC_UPDATE, VRF_DEFAULT); zclient_create_header(s, ZEBRA_FEC_UPDATE, VRF_DEFAULT);
stream_putw(s, rn->p.family); stream_putw(s, rn->p.family);
stream_put_prefix(s, &rn->p); stream_put_prefix(s, &rn->p);
@ -1217,7 +1217,7 @@ static int nhlfe_del(zebra_nhlfe_t *nhlfe)
* Update label for NHLFE entry. * Update label for NHLFE entry.
*/ */
static void nhlfe_out_label_update(zebra_nhlfe_t *nhlfe, static void nhlfe_out_label_update(zebra_nhlfe_t *nhlfe,
struct nexthop_label *nh_label) struct mpls_label_stack *nh_label)
{ {
nhlfe->nexthop->nh_label->label[0] = nh_label->label[0]; nhlfe->nexthop->nh_label->label[0] = nh_label->label[0];
} }

2
zebra/zebra_mroute.c
View File

@ -61,7 +61,7 @@ stream_failure:
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_IPMR_ROUTE_STATS, zvrf_id(zvrf)); zclient_create_header(s, ZEBRA_IPMR_ROUTE_STATS, zvrf_id(zvrf));
stream_put_in_addr(s, &mroute.sg.src); stream_put_in_addr(s, &mroute.sg.src);
stream_put_in_addr(s, &mroute.sg.grp); stream_put_in_addr(s, &mroute.sg.grp);
stream_put(s, &mroute.lastused, sizeof(mroute.lastused)); stream_put(s, &mroute.lastused, sizeof(mroute.lastused));

5
zebra/zebra_ptm_redistribute.c
View File

@ -41,7 +41,7 @@ static int zsend_interface_bfd_update(int cmd, struct zserv *client,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, vrf_id); zclient_create_header(s, cmd, vrf_id);
if (ifp) if (ifp)
stream_putl(s, ifp->ifindex); stream_putl(s, ifp->ifindex);
else else
@ -96,8 +96,7 @@ static int zsend_bfd_peer_replay(int cmd, struct zserv *client)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header( zclient_create_header(s, cmd, VRF_DEFAULT);
s, cmd, VRF_DEFAULT); // Pending: adjust when multi-vrf bfd work
/* Write packet size. */ /* Write packet size. */
stream_putw_at(s, 0, stream_get_endp(s)); stream_putw_at(s, 0, stream_get_endp(s));

6
zebra/zebra_rib.c
View File

@ -372,6 +372,12 @@ static void nexthop_set_resolved(afi_t afi, struct nexthop *newhop,
break; break;
} }
/* Copy labels of the resolved route */
if (newhop->nh_label)
nexthop_add_labels(resolved_hop, newhop->nh_label_type,
newhop->nh_label->num_labels,
&newhop->nh_label->label[0]);
resolved_hop->rparent = nexthop; resolved_hop->rparent = nexthop;
nexthop_add(&nexthop->resolved, resolved_hop); nexthop_add(&nexthop->resolved, resolved_hop);
} }

2
zebra/zebra_rnh.c
View File

@ -1000,7 +1000,7 @@ static int send_client(struct rnh *rnh, struct zserv *client, rnh_type_t type,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, vrf_id); zclient_create_header(s, cmd, vrf_id);
stream_putw(s, rn->p.family); stream_putw(s, rn->p.family);
switch (rn->p.family) { switch (rn->p.family) {

10
zebra/zebra_vxlan.c
View File

@ -1166,7 +1166,7 @@ static int zvni_macip_send_msg_to_client(vni_t vni,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, VRF_DEFAULT); zclient_create_header(s, cmd, VRF_DEFAULT);
stream_putl(s, vni); stream_putl(s, vni);
stream_put(s, macaddr->octet, ETH_ALEN); stream_put(s, macaddr->octet, ETH_ALEN);
if (ip) { if (ip) {
@ -2531,7 +2531,7 @@ static int zvni_send_add_to_client(zebra_vni_t *zvni)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_VNI_ADD, VRF_DEFAULT); zclient_create_header(s, ZEBRA_VNI_ADD, VRF_DEFAULT);
stream_putl(s, zvni->vni); stream_putl(s, zvni->vni);
stream_put_in_addr(s, &zvni->local_vtep_ip); stream_put_in_addr(s, &zvni->local_vtep_ip);
stream_put(s, &zvni->vrf_id, sizeof(vrf_id_t)); /* tenant vrf */ stream_put(s, &zvni->vrf_id, sizeof(vrf_id_t)); /* tenant vrf */
@ -2565,7 +2565,7 @@ static int zvni_send_del_to_client(vni_t vni)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_VNI_DEL, VRF_DEFAULT); zclient_create_header(s, ZEBRA_VNI_DEL, VRF_DEFAULT);
stream_putl(s, vni); stream_putl(s, vni);
/* Write packet size. */ /* Write packet size. */
@ -3550,7 +3550,7 @@ static int zl3vni_send_add_to_client(zebra_l3vni_t *zl3vni)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_L3VNI_ADD, zclient_create_header(s, ZEBRA_L3VNI_ADD,
zl3vni_vrf_id(zl3vni)); zl3vni_vrf_id(zl3vni));
stream_putl(s, zl3vni->vni); stream_putl(s, zl3vni->vni);
stream_put(s, &rmac, sizeof(struct ethaddr)); stream_put(s, &rmac, sizeof(struct ethaddr));
@ -3586,7 +3586,7 @@ static int zl3vni_send_del_to_client(zebra_l3vni_t *zl3vni)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_L3VNI_DEL, zclient_create_header(s, ZEBRA_L3VNI_DEL,
zl3vni_vrf_id(zl3vni)); zl3vni_vrf_id(zl3vni));
stream_putl(s, zl3vni->vni); stream_putl(s, zl3vni->vni);

40
zebra/zserv.c
View File

@ -149,16 +149,6 @@ int zebra_server_send_message(struct zserv *client)
return 0; return 0;
} }
void zserv_create_header(struct stream *s, uint16_t cmd, vrf_id_t vrf_id)
{
/* length placeholder, caller can update */
stream_putw(s, ZEBRA_HEADER_SIZE);
stream_putc(s, ZEBRA_HEADER_MARKER);
stream_putc(s, ZSERV_VERSION);
stream_putl(s, vrf_id);
stream_putw(s, cmd);
}
static void zserv_encode_interface(struct stream *s, struct interface *ifp) static void zserv_encode_interface(struct stream *s, struct interface *ifp)
{ {
/* Interface information. */ /* Interface information. */
@ -221,7 +211,7 @@ int zsend_interface_add(struct zserv *client, struct interface *ifp)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id);
zserv_encode_interface(s, ifp); zserv_encode_interface(s, ifp);
client->ifadd_cnt++; client->ifadd_cnt++;
@ -236,7 +226,7 @@ int zsend_interface_delete(struct zserv *client, struct interface *ifp)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id);
zserv_encode_interface(s, ifp); zserv_encode_interface(s, ifp);
client->ifdel_cnt++; client->ifdel_cnt++;
@ -250,7 +240,7 @@ int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf));
zserv_encode_vrf(s, zvrf); zserv_encode_vrf(s, zvrf);
client->vrfadd_cnt++; client->vrfadd_cnt++;
@ -265,7 +255,7 @@ int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf));
zserv_encode_vrf(s, zvrf); zserv_encode_vrf(s, zvrf);
client->vrfdel_cnt++; client->vrfdel_cnt++;
@ -285,7 +275,7 @@ int zsend_interface_link_params(struct zserv *client, struct interface *ifp)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id);
/* Add Interface Index */ /* Add Interface Index */
stream_putl(s, ifp->ifindex); stream_putl(s, ifp->ifindex);
@ -348,7 +338,7 @@ int zsend_interface_address(int cmd, struct zserv *client,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, ifp->vrf_id); zclient_create_header(s, cmd, ifp->vrf_id);
stream_putl(s, ifp->ifindex); stream_putl(s, ifp->ifindex);
/* Interface address flag. */ /* Interface address flag. */
@ -393,7 +383,7 @@ static int zsend_interface_nbr_address(int cmd, struct zserv *client,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, ifp->vrf_id); zclient_create_header(s, cmd, ifp->vrf_id);
stream_putl(s, ifp->ifindex); stream_putl(s, ifp->ifindex);
/* Prefix information. */ /* Prefix information. */
@ -504,7 +494,7 @@ int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id);
/* Fill in the ifIndex of the interface and its new VRF (id) */ /* Fill in the ifIndex of the interface and its new VRF (id) */
stream_putl(s, ifp->ifindex); stream_putl(s, ifp->ifindex);
@ -581,7 +571,7 @@ int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, cmd, ifp->vrf_id); zclient_create_header(s, cmd, ifp->vrf_id);
zserv_encode_interface(s, ifp); zserv_encode_interface(s, ifp);
if (cmd == ZEBRA_INTERFACE_UP) if (cmd == ZEBRA_INTERFACE_UP)
@ -957,7 +947,7 @@ static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client,
stream_reset(s); stream_reset(s);
/* Fill in result. */ /* Fill in result. */
zserv_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf));
stream_put_in_addr(s, &addr); stream_put_in_addr(s, &addr);
if (re) { if (re) {
@ -1009,7 +999,7 @@ int zsend_route_notify_owner(u_char proto, u_short instance,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id); zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id);
stream_put(s, &note, sizeof(note)); stream_put(s, &note, sizeof(note));
@ -1039,7 +1029,7 @@ int zsend_router_id_update(struct zserv *client, struct prefix *p,
stream_reset(s); stream_reset(s);
/* Message type. */ /* Message type. */
zserv_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id);
/* Prefix information. */ /* Prefix information. */
stream_putc(s, p->family); stream_putc(s, p->family);
@ -1063,7 +1053,7 @@ int zsend_pw_update(struct zserv *client, struct zebra_pw *pw)
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id);
stream_write(s, pw->ifname, IF_NAMESIZE); stream_write(s, pw->ifname, IF_NAMESIZE);
stream_putl(s, pw->ifindex); stream_putl(s, pw->ifindex);
stream_putl(s, pw->status); stream_putl(s, pw->status);
@ -2089,7 +2079,7 @@ static int zsend_label_manager_connect_response(struct zserv *client,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id);
/* result */ /* result */
stream_putc(s, result); stream_putc(s, result);
@ -2151,7 +2141,7 @@ static int zsend_assign_label_chunk_response(struct zserv *client,
s = client->obuf; s = client->obuf;
stream_reset(s); stream_reset(s);
zserv_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id);
if (lmc) { if (lmc) {
/* keep */ /* keep */

2
zebra/zserv.h
View File

@ -177,8 +177,6 @@ extern int zsend_route_notify_owner(u_char proto, u_short instance,
vrf_id_t vrf_id, struct prefix *p, vrf_id_t vrf_id, struct prefix *p,
enum zapi_route_notify_owner note); enum zapi_route_notify_owner note);
extern void zserv_create_header(struct stream *s, uint16_t cmd,
vrf_id_t vrf_id);
extern void zserv_nexthop_num_warn(const char *, const struct prefix *, extern void zserv_nexthop_num_warn(const char *, const struct prefix *,
const unsigned int); const unsigned int);
extern int zebra_server_send_message(struct zserv *client); extern int zebra_server_send_message(struct zserv *client);