From 62c1d2c4833f53897098f945f504f5ec3022d35b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Sat, 10 Nov 2018 17:45:36 +0400 Subject: slirp: associate slirp_output callback with the Slirp context MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Let's make the slirp interface a bit more library-like. Associate the slirp_output() with a Slirp context. Signed-off-by: Marc-André Lureau Signed-off-by: Samuel Thibault --- slirp/libslirp.h | 9 +++++---- slirp/ncsi.c | 2 +- slirp/slirp.c | 11 +++++++---- slirp/slirp.h | 1 + 4 files changed, 14 insertions(+), 9 deletions(-) (limited to 'slirp') diff --git a/slirp/libslirp.h b/slirp/libslirp.h index 42e42e9..52dbb9f 100644 --- a/slirp/libslirp.h +++ b/slirp/libslirp.h @@ -5,6 +5,8 @@ typedef struct Slirp Slirp; +typedef void (*slirp_output)(void *opaque, const uint8_t *pkt, int pkt_len); + int get_dns_addr(struct in_addr *pdns_addr); int get_dns6_addr(struct in6_addr *pdns6_addr, uint32_t *scope_id); @@ -17,7 +19,9 @@ Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork, const char *tftp_path, const char *bootfile, struct in_addr vdhcp_start, struct in_addr vnameserver, struct in6_addr vnameserver6, const char **vdnssearch, - const char *vdomainname, void *opaque); + const char *vdomainname, + slirp_output output, + void *opaque); void slirp_cleanup(Slirp *slirp); void slirp_pollfds_fill(GArray *pollfds, uint32_t *timeout); @@ -26,9 +30,6 @@ void slirp_pollfds_poll(GArray *pollfds, int select_error); void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len); -/* you must provide the following functions: */ -void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len); - int slirp_add_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr, int host_port, struct in_addr guest_addr, int guest_port); diff --git a/slirp/ncsi.c b/slirp/ncsi.c index 7116034..d7701f7 100644 --- a/slirp/ncsi.c +++ b/slirp/ncsi.c @@ -163,5 +163,5 @@ void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) *pchecksum = htonl(checksum); ncsi_rsp_len += 4; - slirp_output(slirp->opaque, ncsi_reply, ETH_HLEN + ncsi_rsp_len); + slirp->output(slirp->opaque, ncsi_reply, ETH_HLEN + ncsi_rsp_len); } diff --git a/slirp/slirp.c b/slirp/slirp.c index ab2fc4e..4d4c2c1 100644 --- a/slirp/slirp.c +++ b/slirp/slirp.c @@ -287,12 +287,15 @@ Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork, const char *tftp_path, const char *bootfile, struct in_addr vdhcp_start, struct in_addr vnameserver, struct in6_addr vnameserver6, const char **vdnssearch, - const char *vdomainname, void *opaque) + const char *vdomainname, + slirp_output output, + void *opaque) { Slirp *slirp = g_malloc0(sizeof(Slirp)); slirp_init_once(); + slirp->output = output; slirp->grand = g_rand_new(); slirp->restricted = restricted; @@ -832,7 +835,7 @@ static void arp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) rah->ar_sip = ah->ar_tip; memcpy(rah->ar_tha, ah->ar_sha, ETH_ALEN); rah->ar_tip = ah->ar_sip; - slirp_output(slirp->opaque, arp_reply, sizeof(arp_reply)); + slirp->output(slirp->opaque, arp_reply, sizeof(arp_reply)); } break; case ARPOP_REPLY: @@ -932,7 +935,7 @@ static int if_encap4(Slirp *slirp, struct mbuf *ifm, struct ethhdr *eh, /* target IP */ rah->ar_tip = iph->ip_dst.s_addr; slirp->client_ipaddr = iph->ip_dst; - slirp_output(slirp->opaque, arp_req, sizeof(arp_req)); + slirp->output(slirp->opaque, arp_req, sizeof(arp_req)); ifm->resolution_requested = true; /* Expire request and drop outgoing packet after 1 second */ @@ -1018,7 +1021,7 @@ int if_encap(Slirp *slirp, struct mbuf *ifm) eh->h_dest[0], eh->h_dest[1], eh->h_dest[2], eh->h_dest[3], eh->h_dest[4], eh->h_dest[5])); memcpy(buf + sizeof(struct ethhdr), ifm->m_data, ifm->m_len); - slirp_output(slirp->opaque, buf, ifm->m_len + ETH_HLEN); + slirp->output(slirp->opaque, buf, ifm->m_len + ETH_HLEN); return 1; } diff --git a/slirp/slirp.h b/slirp/slirp.h index b80725a..e3d65d6 100644 --- a/slirp/slirp.h +++ b/slirp/slirp.h @@ -220,6 +220,7 @@ struct Slirp { GRand *grand; QEMUTimer *ra_timer; + slirp_output output; void *opaque; }; -- cgit v1.1