diff options
| author | Vincenzo Maffione <vmaffione@FreeBSD.org> | 2019-02-05 12:10:48 +0000 |
|---|---|---|
| committer | Vincenzo Maffione <vmaffione@FreeBSD.org> | 2019-02-05 12:10:48 +0000 |
| commit | 75f4f3ed51ea3eb78ed77e255845aa301b657bc4 (patch) | |
| tree | c151c57cccbd72b2e392c0a13a713d95e22fee85 /sys/dev/netmap/netmap_legacy.c | |
| parent | baed5270e1a6863444b97ccb107d08b317eb84a3 (diff) | |
Notes
Diffstat (limited to 'sys/dev/netmap/netmap_legacy.c')
| -rw-r--r-- | sys/dev/netmap/netmap_legacy.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sys/dev/netmap/netmap_legacy.c b/sys/dev/netmap/netmap_legacy.c index 9159c1bce4c87..afbd5ced8510e 100644 --- a/sys/dev/netmap/netmap_legacy.c +++ b/sys/dev/netmap/netmap_legacy.c @@ -365,7 +365,14 @@ netmap_ioctl_legacy(struct netmap_priv_d *priv, u_long cmd, caddr_t data, /* Request for the legacy control API. Convert it to a * NIOCCTRL request. */ struct nmreq *nmr = (struct nmreq *) data; - struct nmreq_header *hdr = nmreq_from_legacy(nmr, cmd); + struct nmreq_header *hdr; + + if (nmr->nr_version < 11) { + nm_prerr("Minimum supported API is 11 (requested %u)", + nmr->nr_version); + return EINVAL; + } + hdr = nmreq_from_legacy(nmr, cmd); if (hdr == NULL) { /* out of memory */ return ENOMEM; } @@ -390,14 +397,14 @@ netmap_ioctl_legacy(struct netmap_priv_d *priv, u_long cmd, caddr_t data, #ifdef __FreeBSD__ case FIONBIO: case FIOASYNC: - ND("FIONBIO/FIOASYNC are no-ops"); + /* FIONBIO/FIOASYNC are no-ops. */ break; case BIOCIMMEDIATE: case BIOCGHDRCMPLT: case BIOCSHDRCMPLT: case BIOCSSEESENT: - D("ignore BIOCIMMEDIATE/BIOCSHDRCMPLT/BIOCSHDRCMPLT/BIOCSSEESENT"); + /* Ignore these commands. */ break; default: /* allow device-specific ioctls */ |