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authorMarc-André Lureau <marcandre.lureau@redhat.com>2018-11-14 16:36:33 +0400
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2019-01-14 00:43:30 +0100
commit2addc8fb6dac59b7232c65d1d43ec4bdd0b73420 (patch)
tree5051e830ecee3e24a048fdcc4de818ed54da0f12 /slirp
parent2afbb788ff43c5cb5a91fb3da9cae6bd9a70731f (diff)
slirp: add a callback to log guest errors
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Diffstat (limited to 'slirp')
-rw-r--r--slirp/dhcpv6.c6
-rw-r--r--slirp/ip6_icmp.c7
-rw-r--r--slirp/libslirp.h2
3 files changed, 8 insertions, 7 deletions
diff --git a/slirp/dhcpv6.c b/slirp/dhcpv6.c
index 943a13bca8..5d703e8ae6 100644
--- a/slirp/dhcpv6.c
+++ b/slirp/dhcpv6.c
@@ -50,7 +50,7 @@ struct requested_infos {
* the odata region, thus the caller must keep odata valid as long as it
* needs to access the requested_infos struct.
*/
-static int dhcpv6_parse_info_request(uint8_t *odata, int olen,
+static int dhcpv6_parse_info_request(Slirp *slirp, uint8_t *odata, int olen,
struct requested_infos *ri)
{
int i, req_opt;
@@ -61,7 +61,7 @@ static int dhcpv6_parse_info_request(uint8_t *odata, int olen,
int len = odata[2] << 8 | odata[3];
if (len + 4 > olen) {
- qemu_log_mask(LOG_GUEST_ERROR, "Guest sent bad DHCPv6 packet!\n");
+ slirp->cb->guest_error("Guest sent bad DHCPv6 packet!");
return -E2BIG;
}
@@ -121,7 +121,7 @@ static void dhcpv6_info_request(Slirp *slirp, struct sockaddr_in6 *srcsas,
struct mbuf *m;
uint8_t *resp;
- if (dhcpv6_parse_info_request(odata, olen, &ri) < 0) {
+ if (dhcpv6_parse_info_request(slirp, odata, olen, &ri) < 0) {
return;
}
diff --git a/slirp/ip6_icmp.c b/slirp/ip6_icmp.c
index 595647b1b1..3f74d172f4 100644
--- a/slirp/ip6_icmp.c
+++ b/slirp/ip6_icmp.c
@@ -342,8 +342,7 @@ static void ndp_input(struct mbuf *m, Slirp *slirp, struct ip6 *ip,
case ICMP6_NDP_RA:
DEBUG_CALL(" type = Router Advertisement");
- qemu_log_mask(LOG_GUEST_ERROR,
- "Warning: guest sent NDP RA, but shouldn't");
+ slirp->cb->guest_error("Warning: guest sent NDP RA, but shouldn't");
break;
case ICMP6_NDP_NS:
@@ -376,8 +375,8 @@ static void ndp_input(struct mbuf *m, Slirp *slirp, struct ip6 *ip,
case ICMP6_NDP_REDIRECT:
DEBUG_CALL(" type = Redirect");
- qemu_log_mask(LOG_GUEST_ERROR,
- "Warning: guest sent NDP REDIRECT, but shouldn't");
+ slirp->cb->guest_error(
+ "Warning: guest sent NDP REDIRECT, but shouldn't");
break;
}
}
diff --git a/slirp/libslirp.h b/slirp/libslirp.h
index a5d1b27b5e..3e0aa19f4b 100644
--- a/slirp/libslirp.h
+++ b/slirp/libslirp.h
@@ -13,6 +13,8 @@ typedef struct Slirp Slirp;
typedef struct SlirpCb {
/* Send an ethernet frame to the guest network. */
void (*output)(void *opaque, const uint8_t *pkt, int pkt_len);
+ /* Print a message for an error due to guest misbehavior. */
+ void (*guest_error)(const char *msg);
} SlirpCb;